Category: alcohols-buliding-blocks

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Dichloro(1,5-cyclooctadiene)platinum(II)( cas:12080-32-9 ) is researched.Recommanded Product: Dichloro(1,5-cyclooctadiene)platinum(II).Adams, Muneebah; Sullivan, Matthew P.; Tong, Kelvin K. H.; Goldstone, David C.; Hanif, Muhammad; Jamieson, Stephen M. F.; Hartinger, Christian G. published the article 《Mustards-Derived Terpyridine-Platinum Complexes as Anticancer Agents: DNA Alkylation vs. Coordination》 about this compound( cas:12080-32-9 ) in Inorganic Chemistry. Keywords: mustard terpyridine platinum complex preparation cancer DNA alkylation coordination. Let’s learn more about this compound (cas:12080-32-9).

The development of bifunctional platinum complexes with the ability to interact with DNA via different binding modes is of interest in anticancer metallodrug research. Therefore, we report platinum(II) terpyridine complexes to target DNA by coordination and/or through a tethered alkylating moiety. The platinum complexes were evaluated for their in vitro antiproliferative properties against the human cancer cell lines HCT116 (colorectal), SW480 (colon), NCI-H460 (non-small cell lung), and SiHa (cervix) and generally exhibited potent antiproliferative activity although lower than their resp. terpyridine ligands. 1H NMR spectroscopy and/or ESI-MS studies on the aqueous stability and reactivity with various small biomols., acting as protein and DNA model compounds, were used to establish potential modes of action for these complexes. These investigations indicated rapid binding of complex PtL3 to the biomols. through coordination to the Pt center, while PtL4 in addition alkylated 9-ethylguanine. PtL3 was investigated for its reactivity to the model protein hen egg white lysozyme (HEWL) by protein crystallog. which allowed identification of the Nδ1 atom of His15 as the binding site.

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Conjugated Macrocycles in Organic Electronics, published in 2019-04-16, which mentions a compound: 12080-32-9, Name is Dichloro(1,5-cyclooctadiene)platinum(II), Molecular C8H12Cl2Pt, SDS of cas: 12080-32-9.

This Account describes a body of research on the design, synthesis, and application of a new class of electronic materials made from conjugated macrocycles. Our macrocyclic design takes into consideration the useful attributes of fullerenes and what properties make fullerenes efficient n-type materials. We identified four electronic and structural elements: (1) a three-dimensional shape; (2) a conjugated and delocalized π-space; (3) the presence of an interior and exterior to the π-surface; and (4) low-energy unoccupied MOs allowing them to accept electrons. The macrocyclic design incorporates some of these properties, including a three-dimensional shape, an interior/exterior to the π-surface, and low-lying LUMOs maintaining the n-type semiconducting behavior, yet we also install synthetic flexibility in our approach in order to tune the properties further. Each of the macrocycles comprises perylenediimide cores wound together with linkers. The perylenediimide building block endows each macrocycle with the ability to accept electrons, while the synthetic flexibility to install different linkers allows us to create macrocycles with different electronic properties and sizes. We have created three macrocycles that all absorb well into the visible range of the solar spectrum and possess different shapes and sizes. We then use these materials in an array of applications that take advantage of their ability to function as n-type semiconductors, absorb in the visible range of the solar spectrum, and possess intramol. cavities. This Account will discuss our progress in incorporating these new macrocycles in organic solar cells, organic photodetectors, organic field effect transistors, and sensors. The macrocycles outperform acyclic controls in organic solar cells. We find the more rigid macrocyclic structure results in less intrinsic charges and lower dark current in organic photodetectors. Our macrocyclic-based photodetector has the highest detectivity of non-fullerene acceptors. The macrocycles also function as sensors and are able to recognize nuanced differences in analytes. Perylenediimide-based fused oligomers are efficient materials in both organic solar cells and field effect transistors. We will use the oligomers to construct macrocycles for use in solar energy conversion. In addition, we will incorporate different electron-rich linkers in our cycles in an attempt to engineer the HOMO/LUMO gap further. Looking further into the future, we envision opportunities in applying these conjugated macrocycles as electronic host/guest materials, as concatenated electronic materials by threading the macrocycles with electroactive oligomers, and as a locus for catalysis that is driven by light and elec. fields.

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In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Synthesis and ultraviolet spectra of nitrodiphenyl-amine disperse dyes. II. Synthesis of some substituted 2- and 4-nitrodiphenylamines, published in 1967, which mentions a compound: 16588-26-4, mainly applied to DIPHENYLAMINES DISPERSE DYE; DYE DIPHENYLAMINES DISPERSE; DISPERSE DYE DIPHENYLAMINES, Safety of 3-Bromo-4-chloronitrobenzene.

The synthesis of some substituted 2- and 4-nitrodiphenylamines, yellow dyes for synthetic fibers, is described. Condensation of 0.02 mole 2,5-Cl2C6H3NO2 with 0.04 mole PhNH2 in 50 ml. boiling EtOH containing 3 g. NaOAc gave 52.8% I (R = NO2, R1 = Cl, R2 = R3 = R4 = H), m. 59-60° (75% aqueous alc.). Other I were prepared similarly (R, R1, R2, R3, R4, % yield, and m.p. given): NO2, Cl, OMe, H, H, 50, 100-1°; NO2, Cl, H, OMe, H, 37, 90°; NO2, Cl, H, H, OMe, 48, 118-19°; NO2, Cl, F, H, H, 21, 113-14°; NO2, Cl, H, F, H, 40, 99-100°; NO2, Cl, H, H, F, 38, 80-1°; NO2, Cl, H, H, SO2Me, 15, 210-11°; CF3, NO2, H, H, H, 71, 63-4°; CF3, NO2, OMe, H, H, 16, 106-7°; CF3, NO2, H, OMe, H, 32, 88°; CF3, NO2, H, H, OMe, 74, 87-8°; CF3, NO2, F, H, H, 30, 60-1°; CF3, NO2, H, F, H, 57, 73-4°; CF3, NO2, H, H, F, 20, 74-5°; MeSO2, NO2, H, H, H, 82, 169-70°; Me, NO2, H, H, H, 23, 133-4°; NO2, Me, H, H, H, 79, 34-5°; NO2, OMe, H, H, H, 23, 44-5°. Fusion of 0.02 mole 3,4-Cl2C6H3NO2 (II) with 0.04 mole PhNH2 gave 31.8% I (R = Cl, R1 = NO2, R2 = R3 = R4 = H), m. 112-13°. Other I (R = Cl, R1 = NO2) were prepared similarly (R2, R3, R4, % yield, and m.p. given): OMe, H, H, 36, 108-9°; H, OMe, H, 25, 122-3°; H, H, OMe, 32, 99-100°; H, H, F, 20, 119-20°. Condensation of 0.02 mole 4,3-Cl(O2N)C6H3SO2NH2 (III) and 0.03 mole PhNH2 by fusing for 6 hrs. at 130° gave 71.8% I (R = NO2, R1 = SO2NH2, R2 = R3 = R4 = H), m. 179-80°. Other I (R = NO2, R1 = SO2NH2) were prepared similarly (R2, R3, R4, % yield, and m.p. given): Me, H, H, 84, 195-6°; H, Me, H, 85, 172-3°; H, H, Me, 90, 196-7°; OMe, H, H, 41, 225-6°; H, OMe, H, 91, 181-2°; H, H, OMe, 89, 226-7°; F, H, H, 61, 206-7°; H, F, H, 77, 195-6°; H, H, F, 80, 234-5°; Cl, H, H, 42, 202-3°; H, Cl, H, 80, 201-2°; H, H, Cl, 80, 241-2°; Br, H, H, 60, 200-1°; H, Br, H, 79, 207-8°; H, H, Br, 84, 235-6°; CF3, H, H, 40, 169-70°; H, CF3, H, 82, 210-11°; H, H, CF3, 29, 260-1°; H, H, SO2Me, 59, 253-4°. Condensation of 4.7 g. 2,5-Cl(O2N)C6H3SO2NH2 (IV) with 0.04 mole PhNH2 in 100 ml. boiling PhNO2 for 24 hrs. gave 68.4% I (R = SO2NH2, R1 = NO2, R2 = R3 = R4 = H), m. 175-6°. Other I (R = SO2NH2, R1 = NO2) were prepared similarly (R2, R3, R4, % yield, and m.p. given): OMe, H, H, 62, 205-8°; H, OMe, H, 59, 172-4°; H, H, OMe, 65, 160°; F, H, H, 60, 182-3°; H, F, H, 68, 173-4°; H, H, F, 71, 162-4°. A mixture of 25 g. 4,3-Cl(O2N)C6H3CO2H and 50 ml. SOCl2 was refluxed for 2 hrs., stripped of excess SOCl2, and treated with excess NH4OH to give 86.4% 4,3-Cl(O2N)C6H3CONH2, m. 154-5° (EtOH), which (0.02 mole) was condensed with 0.04 mole PhNH2 in EtOH containing NaOAc to give 34.4% I (R = NO2, R1 = CONH2, R2 = R3 = R4 = H), m. 194-5°. Other I were prepared similarly (R, R1, R2, R3, R4, % yield, and m.p. given): NO2, CONH2, OMe, H, H, 68, 144-5°; NO2, CONH2, H, OMe, H, 72, 170-1°; NO2, CONH2, H, H, OMe, 68, 220-1°; NO2, CONH2, F, H, H, 60, 169-71°; NO2, CONH2, H, F, H, 67, 191-2°; NO2, CONH2, H, H, F, 78, 207-8°; NO2, CONH2, H, H, SO2Me, 10, 244-5°; CONH2, NO2, H, H, H, 25, 184-5°; CONH2, NO2, OMe, H, H, 59, 215-16°; CONH2, NO2, H, OMe, H, 55, 198-9°; CONH2, NO2, H, H, OMe, 79, 216-17°; CONH2, NO2, F, H, H, 49, 184-5°; CONH2, NO2, H, F, H, 43, 233-4°; CONH2, NO2, H, H, F, 82, 231-2°; CONH2, NO2, H, H, SO2Me, 7, 207-8°. Esterification of 4,3-Cl(O2N)C6H3CO2H gave 4,3-Cl(O2N)C6H3CO2Et, m. 60-1° (EtOH), which was condensed with PhNH2 in boiling EtOH to give 92.8% I (R = NO2, R1 = CO2Et, R2 = R3 = R4 = H), m. 114-15°. Other I were prepared similarly (R, R1, R2, R3, R4, % yield, and m.p. given): NO2, CO2Et, OMe, H, H, 72, 116-18°; NO2, CO2Et, H, OMe, H, 70, 105-6°; NO2, CO2Et, H, H, OMe, 63, 128-9°; NO2, CO2Et, F, H, H, 15, 120-2°; NO2, CO2Et, H, F, H, 69, 79-80°; NO2, CO2Et, H, H, F, 52, 138-9°; NO2, CO2Et, H, H, SO2Me, 13, 149-50°; CO2Et, NO2, H, H, H, 29, 111-12°; CO2Et, NO2, OMe, H, H, 41, 112-13°; CO2Et, NO2, H, OMe, H, 46, 81-2°; CO2Et, NO2, H, H, OMe, 56, 120-2°; CO2Et, NO2, F, H, H, 18, 105°; CO2Et, NO2, H, F, H, 59, 119-20°; CO2Et, NO2, H, H, F, 34, 121-2°; CO2Et, NO2, H, H, SO2Me, 10, 189-90°; NO2, CF3, H, H, H, 63, 84°; NO2, CF3, OMe, H, H, 39, 123-4°; NO2, CF3, H, OMe, H, 81, 67-8°; NO2, CF3, H, H, OMe, 80, 85-6°; NO2, CF3, F, H, H, 76, 77-8°; NO2, CF3, H, F, H, 70, 93°; NO2, CF3, H, H, F, 54, 77-8°; NO2, CF3, H, H, SO2Me, 10, 149-50°. Nitration of p-ClC6H4SO2Me with KNO3 in concentrated H2SO4 at 80-5° for 3 hrs. gave 81.7% 4,3-Cl(O2N)C6H3SO2Me, m. 121-2° (20% aqueous alc.), which was condensed with PhNH2 to give 92% I (R = NO2, R1 = SO2Me, R2 = R3 = R4 = H), m. 130-1°. A solution of 15 g. 0-ClC6H4CN in fuming HNO3 was allowed to warm to room temperature from 0-4° in 1 hr., kept for 1 hr. at room temperature, and mixed with 600 ml. ice-water to give 81.8% 2,5-Cl(O2N)C6H3CN, m. 108° (EtOH), which was condensed with PhNH2 in the presence of NaOAc to give 78% I (R = CN, R1 = NO2, R2 = R3 = R4 = H), m. 159-60°. Similarly prepared was I (R = NO2, R1 = CN, R2 = R3 = R4 = H), m. 121-2°. A suspension of 21.7 g. 4,2-Br(O2N)C6H3NH2 in 85 ml. concentrated HCl at 0-4° was diazotized with NaNO2, stirred 1 hr. at 5°, mixed with 15 g. CuCl2 in 50 ml. concentrated HCl, warmed to 70° in 1 hr., and stirred for 30 min. at 70° and overnight at room temperature to give 50% 5,2-Br(Cl)C6H3NO2, m. 70-1° (20% aqueous alc.), which was condensed with PhNH2 to give 80.5% I (R = NO2, R1 = Br, R2 = R3 = R4 = H), m. 54-6°. Similarly prepared were I (R = Br, R1 = NO2, R2 = R3 = R4 = H), m. 111-12°. I (R = NO2, R1 = F, R2 = R3 = R4 = H), m. 120-1°, and I (R = F, R1 = NO2, R2 = R3 = R4 = H), m. 134°. Nitration of 4-ClC6H4CHO gave 80% 4,3-Cl(O2N)C6H3CHO, m. 65-6° (EtOH), which was condensed with PhNH2 in the presence of NaOAc to give a mixture of I (R = NO2, R1 = CHO, R2 = R3 = R4 = H), m. 147-8°, and 4,3-PhNH(O2N)C6H3CH:NPh, m. 108-9°. Similarly prepared was 2,5-PhNH(O2N)C6H3CHO, m. 182° (by-product and m. 132-3°). Attempted conversion of II with 2-, 3-, or 4-FC6H4NH2 or with 3-MeOC6H4NH2 in refluxing HCONMe2 gave 75-85% 2,4-Cl(O2N)C6H3NMe2, m. 78°. Similarly, III and 2- or 4-F3CC6H4NH2 in HCONMe2 gave 4,3-Me2N(O2N)C6H3SO2NH2, m. 133-4°, while IV with all arylamines in HCONMe2 gave 2,5-Me2N(O2N)C6H3SO2NH2, m. 147-8° (EtOH).

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Quality Control of tert-Butyl 5-bromo-1H-indazole-1-carboxylate. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: tert-Butyl 5-bromo-1H-indazole-1-carboxylate, is researched, Molecular C12H13BrN2O2, CAS is 651780-02-8, about Microwave-assisted Transition Metal-catalyzed Coupling Approach to Indazole Diversity. Author is Oh, Yoo Jin; Yum, Eul Kgun.

Diverse mono or biaryl substituents were introduced to indazole moieties under microwave-assisted palladium-catalyzed coupling reactions with isomeric bromoindazoles and aryl boronic acids. 1,3-Disubstituted indazoles were also obtained by C=C or C-N coupling of monosubstituted indazoles with functionalized terminal alkenes and arylhalides. Facile introduction of diverse substituents to indazoles showed useful synthetic approach for creating indazole compound library to discover biol. active small mols.

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Electric Literature of C10H10ClNO. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 1-(4-Chlorophenyl)pyrrolidin-2-one, is researched, Molecular C10H10ClNO, CAS is 7661-33-8, about Facile CuI-catalyzed arylation of azoles and amides using simple enaminones as efficient ligands. Author is Cheng, Cungui; Sun, Gonglei; Wan, Jieping; Sun, Cuirong.

(E)-3-(Dimethylamino)-1-(2-hydroxyphenyl)prop-2-en-1-one was found to be an excellent ligand for copper-catalyzed N-arylation of azoles and amides with aryl halides under mild conditions. The reaction took place at 82 °C in MeCN with broad functional-group compatibility. A combination of the ligand and CuI proved to be an efficient catalytic system to promote the coupling reactions of aryl halides with azoles and amides.

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Name: Dichloro(1,5-cyclooctadiene)platinum(II). The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Confined Spaces in [n]Cyclo-2,7-pyrenylenes. Author is Grabicki, Niklas; Nguyen, Khoa T. D.; Weidner, Steffen; Dumele, Oliver.

A set of strained aromatic macrocycles based on [n]cyclo-2,7-(4,5,9,10-tetrahydro)pyrenylenes is presented with size-dependent photophys. properties. The K-region of pyrene was functionalized with ethylene glycol groups to decorate the outer rim and thereby confine the space inside the macrocycle. This confined space is especially pronounced for n=5, which leads to an internal binding of up to 8.0×104 M-1 between the ether-decorated [5]cyclo-2,7-pyrenylene and shape-complementary crown ether-cation complexes. Both the ether-decorated [n]cyclo-pyrenylenes as well as one of their host-guest complexes have been structurally characterized by single-crystal X-ray anal. In combination with computational methods the structural and thermodn. reasons for the exceptionally strong binding have been elucidated. The presented rim confinement strategy makes cycloparaphenylenes an attractive supramol. host family with a favorable, size-independent read-out signature and binding capabilities extending beyond fullerene guests.

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Cyclization of N-arylcyclopropanecarboxamides into N-arylpyrrolidinones-2 under electron ionization and in the condensed phase, published in 2016, which mentions a compound: 7661-33-8, Name is 1-(4-Chlorophenyl)pyrrolidin-2-one, Molecular C10H10ClNO, Formula: C10H10ClNO.

Mass spectrometry is known as an excellent method to predict the behavior of organic compounds in solution The behavior of organic compounds in the gas-phase inside an ion source of a mass spectrometer allows their intrinsic properties to be defined, avoiding the influence of intermol. interactions, counter ions and solvent effects. Arylpyrrolidinones-2 were obtained by condensed phase synthesis from the corresponding N-arylcyclopropanecarboxamides. Electron ionization (EI) with accurate mass measurements by high-resolution time-of-flight mass-spectrometry and quantum chem. calculations were used to understand the behavior of the mol. radical cations of N-arylcyclopropanecarboxamides and N-arylpyrrolidinones-2 in the ion source of a mass spectrometer. The geometries of the mols., transition states, and intermediates were fully optimized using DFT-PBE calculations Fragmentation schemes, ion structures, and possible mechanisms of primary isomerization were proposed for isomeric N-arylcyclopropanecarboxamides and N-arylpyrrolidinones-2. Based on the fragmentation pattern of the N-arylcyclopropanecarboxamides, isomerization of the original M+· ions into the M+· ions of the N-arylpyrrolidinones-2 was shown to be only a minor process. On the contrary, this cyclization proceeds easily in the condensed phase in the presence of the Bronsted acids. Based on the exptl. data and quantum chem. calculations the principal mechanism of decomposition of the mol. ions of N-arylcyclopropanecarboxamides involves their direct fragmentation without any rearrangements. An alternative mechanism is responsible for the isomerization of a small portion of the higher energy mol. ions into the corresponding N-arylpyrrolidinones-2 ions.

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Application of 12080-32-9. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about NHC-Au(I) complexes bearing trispyrazolyl borate (Tp) ligands: efficient platforms for bimetallic species. Author is Angel-Jijon, Carlos; Rendon-Nava, David; Vazques-Perez, Jose M.; Alvarez-Hernandez, Alejandro; Mendoza-Espinosa, Daniel; Salazar-Pereda, Veronica.

Treatment of NHC-AuCl (NHC = IPr and IMes) complexes with equimolar amounts of KTpR2 (R = Me, H) salts in THF produces in high yields the heteroleptic complexes 3-6 with the general formula NHC-Au-TpR2. As the TpR ligand in complexes 3-6 features a k1-N type coordination toward the gold(I) center, the subsequent addition of group 10 and 11 metal precursors (NiII, PtII, CuII) results in the isolation of heterobimetallic Au/M complexes supported by TpR platforms. All new metal complexes have been fully characterized by elemental anal. and NMR spectroscopy, and in the case of 3, 4 and 6 by X-ray crystallog.

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COA of Formula: C8H12Cl2Pt. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Phosphane-functionalized heavier tetrylenes: synthesis of silylene- and germylene-decorated phosphanes and their reactions with Group 10 metal complexes. Author is Cabeza, Javier A.; Garcia-Alvarez, Pablo; Laglera-Gandara, Carlos J.; Perez-Carreno, Enrique.

The stable phosphine-functionalized heavier tetrylenes E(tBu2bzam)pyrmPtBu2 (E = Si (1Si), Ge (1Ge); tBu2bzam = N,N’-di-tertbutylbenzamidinate; HpyrmPtBu2 = di-tert-butyl(2-pyrrolylmethyl)phosphine) were prepared by reacting the amidinatotetrylenes E(tBu2bzam)Cl (E = Si, Ge) with LipyrmPtBu2. The reactions of 1Si and 1Ge with selected M0 and MII (M = Ni, Pd, Pt) metal precursors gave square-planar [MCl2{κ2E,P-E(tBu2bzam)pyrmPtBu2}] (M = Ni, Pd, Pt; E = Si, Ge), tetrahedral [Ni{κ2E,P-E(tBu2bzam)pyrmPtBu2}(cod)] (E = Si, Ge; cod = 1,5-cyclooctadiene) and triangular [M{κ2E,P-E(tBu2bzam)pyrmPtBu2}(PPh3)] (M = Pd, Pt; E = Si, Ge) complexes, showing that 1Si and 1Ge are excellent Si,P- and Ge,P-chelating ligands that, due to their large steric bulk, are able to stabilize three-coordinate Pd0 and Pt0 complexes.

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Product Details of 23002-78-0. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 1-(2-Methylthiazol-4-yl)ethanone, is researched, Molecular C6H7NOS, CAS is 23002-78-0, about Lipase kinetic enantiomeric resolution of 1-heteroarylethanols. Author is Kucher, Olexandr V.; Kolodyazhnaya, Anastasiya O.; Smolii, Oleg B.; Nazarenko, Nadiya K.; Kubyshkin, Vladimir; Mykhailiuk, Pavel K.; Tolmachev, Andrey A..

The use of lipases offers a simple and straightforward method toward various chiral secondary alcs. Here we examined the lipase resolution of 1-heteroarylethanols. Racemic substrates were subjected to a two step resolution strategy. The difference between the substituent sizes around the chiral fragment allowed the successful isolation of the (S)-alcs. with assistance of the Burkholderia cepacia lipase (ee ≥ 96%). The (R)-isomers were obtained after hydrolysis of the enantioenriched O-acetylated alcs. either with Candida antarctica lipase B or with potassium carbonate. The performance of the latter step was found to be substrate dependent.

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