Tag: M.W=50-100

Liu, Lujie published the artcileHydrodeoxygenation of C4-C6 sugar alcohols to diols or mono-alcohols with the retention of the carbon chain over a silica-supported tungsten oxide-modified platinum catalyst, Name: 3-Pentanol, the main research area is sugar hydrodeoxygenation alc diol silica tungsten oxide platinum catalyst.

The hydrodeoxygenation of erythritol, xylitol, and sorbitol was investigated over a Pt-WOx/SiO2 (4 wt% Pt, W/Pt = 0.25, molar ratio) catalyst. 1,4-Butanediol can be selectively produced with 51% yield (carbon based) by erythritol hydrodeoxygenation at 413 K, based on the selectivity over this catalyst toward the regioselective removal of the C-O bond in the -O-C-CH2OH structure. Because the catalyst is also active in the hydrodeoxygenation of other polyols to some extent but much less active in that of mono-alcs., at higher temperature (453 K), mono-alcs. can be produced from sugar alcs. A good total yield (59%) of pentanols can be obtained from xylitol, which is mainly converted to C2 + C3 products in the literature hydrogenolysis systems. It can be applied to the hydrodeoxygenation of other sugar alcs. to mono-alcs. with high yields as well, such as erythritol to butanols (74%) and sorbitol to hexanols (59%) with very small amounts of C-C bond cleavage products. The active site is suggested to be the Pt-WOx interfacial site, which is supported by the reaction and characterization results (TEM and XAFS). WOx/SiO2 selectively catalyzed the dehydration of xylitol to 1,4-anhydroxylitol, whereas Pt-WOx/SiO2 promoted the transformation of xylitol to pentanols with 1,3,5-pentanetriol as the main intermediate. Pre-calcination of the reused catalyst at 573 K is important to prevent coke formation and to improve the reusability.

Green Chemistry published new progress about Cyclic ethers Role: IMF (Industrial Manufacture), PREP (Preparation). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Name: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Qing published the artcileNi-Catalyzed Enantioselective Allylic Alkylation of H-Phosphinates, SDS of cas: 584-02-1, the main research area is nickel catalyzed enantioselective allylic alkylation phosphinate allylic acetate; stereogenic allylic phenyl phosphinate preparation crystal structure; mol structure stereogenic allylic phenyl phosphinate.

The asym. synthesis of P-stereogenic phosphinates through allylic alkylation of H-phosphinates was developed. With H-phosphinates and allylic acetates as the starting materials, a variety of allylic P-chiral phosphinates were accessed in high enantioselectivities of up to 92% ee and generally high yields. A further study demonstrated the applicability of this protocol, including the scale-up synthesis and facile transformation of chiral products from phosphinates to phosphine oxides with organolithium reagents under mild reaction conditions.

Organic Letters published new progress about Acetates Role: RCT (Reactant), RACT (Reactant or Reagent) (allylic). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, SDS of cas: 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhong, Jian-Ji published the artcileEfficient acceptorless photo-dehydrogenation of alcohols and N-heterocycles with binuclear platinum(II) diphosphite complexes, Quality Control of 584-02-1, the main research area is binuclear platinum diphosphite complex preparation UV absorption; ketone aldehyde preparation; alc photodehydrogenation binuclear platinum diphosphite complex catalyst; indole quinoline isoquinoline benzothiazole pyrrole preparation; saturated heterocycle photodehydrogenation binuclear platinum diphosphite catalyst; quinazolinone preparation; anthranilamide alc tandem dehydrogenation coupling binuclear platinum diphosphite catalyst.

Binuclear platinum(II) diphosphite complexes as practical and efficient photocatalysts for oxidant-free and acceptorless dehydrogenation of alcs. and N-heterocycles in high yields even under substrate-limiting conditions was described. The reaction could be used for constructing quinazolin-4(3H)-ones from anthranilamide and alcs. This protocol offered the unique reactivity of binuclear platinum(II) diphosphite complexes, wide substrate scope, mild reaction conditions, scalability, utility and versatility of these photocatalysts with practical relevance. Regeneration of the photocatalyst by means of reductive elimination of dihydrogen from the in-situ formed platinum(III)-hydride species represented an alternative paradigm to the current approach in photoredox catalysis.

Chemical Science published new progress about Acetophenones Role: SPN (Synthetic Preparation), PREP (Preparation). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Quality Control of 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Yu-Feng published the artcileSamarium(II)-electrocatalyzed chemoselective reductive alkoxylation of phthalimides, Synthetic Route of 584-02-1, the main research area is phthalimide alkanol samarium catalyst electrochem selective reductive alkoxylation; alkoxy isoindolinone preparation.

The unprecedented samarium electrocatalyzed reductive alkoxylation of phthalimides in a single step was presented. Under mild conditions, using electrogenerated Sm(II) with TMSCl (tri-Me chlorosilane), N-substituted 3-alkoxyl isoindolin-1-ones were isolated in good to excellent yields with high functional group tolerance.

Organic Chemistry Frontiers published new progress about Aliphatic alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Synthetic Route of 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kishore, Jugal published the artcileRuthenium(II)-catalyzed direct synthesis of ketazines using secondary alcohols, Application In Synthesis of 584-02-1, the main research area is ketazine preparation diastereoselective; secondary alc hydrazine hydrate oxygen hydrogen bond activation; ruthenium pincer complex catalyst.

Direct one-pot synthesis of ketazines (E,E)-R1R2C:NN:CR1R2 (R1 = Me, Et, Pr, etc.; R2 = C6H5, 4-MeC6H4, 2-MeOC6H4, etc.) from secondary alcs. R1R2CH(OH) and hydrazine hydrate catalyzed by a ruthenium pincer complex is reported, which proceeds through O-H bond activation of secondary alcs. via amine-amide metal-ligand cooperation in the catalyst. Remarkably, liberated mol. hydrogen and water are the only byproducts.

Chemical Communications (Cambridge, United Kingdom) published new progress about Azines Role: SPN (Synthetic Preparation), PREP (Preparation) (ketazines). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Application In Synthesis of 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Carbonnier, Maxime published the artcileAn experimental and modeling study of the oxidation of 3-pentanol at high pressure, Safety of 3-Pentanol, the main research area is pentanol oxidation high pressure.

High pressure oxidation of 3-pentanol is investigated in a jet-stirred reactor and in a shock tube. Experiments in the reactor were carried out at 10 atm, between 730 and 1180 K, for equivalence ratios of 0.35, 0.5, 1, 2, 4 and 1000 ppm fuel, at a constant residence time of 0.7 s. Reactant, product and intermediate species mole fractions were recorded using Fourier transform IR spectroscopy (FTIR) and gas chromatog. (GC). Ignition delay times were measured for 3-pentanol/O2 mixtures in argon in a shock tube at 20 and 40 bar, in a temperature range of 1000-1470 K and for equivalence ratios of 0.5, 1 and 2. The fuel did not show any low-temperature reactivity under these conditions in neither exptl. set-up and produced various aldehydes and ketones as well as the olefin 2-pentene as intermediates. A kinetic sub-mechanism is developed in order to represent the present data and analyze the reaction pathways.

Proceedings of the Combustion Institute published new progress about Aldehydes Role: TEM (Technical or Engineered Material Use), USES (Uses). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Safety of 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Hong published the artcileImproved Process for the Palladium-Catalyzed C-O Cross-Coupling of Secondary Alcohols, Application of 3-Pentanol, the main research area is aromatic ether preparation; aryl halide secondary alc coupling reaction palladium catalyst.

An improved protocol for the Pd-catalyzed I C-O cross-coupling of secondary alcs. ROH (R = butan-2-yl, 2,2,2-trifluoro-1-phenylethyl, cyclopropyl(phenyl)methyl, etc.) is described. The use of biaryl phosphine as the ligand was key to achieving efficient cross-coupling of (hetero)aryl halides ArX (X = Cl, Br; Ar = 4-tert-butylphenyl, naphthalen-1-yl, 4-methylpyridin-2-yl, etc.) with only a 20% molar excess of the alc. Addnl., an unusual reactivity difference between an electron-rich aryl bromide and the analogus aryl chloride, and deuterium-labeling suggested that currently unidentified pathways for reduction play an important role in explaining this disparity were observed

Organic Letters published new progress about Aromatic ethers Role: SPN (Synthetic Preparation), PREP (Preparation). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Application of 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ramos-Escudero, Fernando published the artcileAssessment of phenolic and volatile compounds of commercial Sacha inchi oils and sensory evaluation, Recommanded Product: 3-Pentanol, the main research area is sacha inchi oil phenolic volatile compound sensory property; Authentication; Oil; Phenolic profile; Plukenetia volubilis seed; Sensory properties; Volatile profiles.

Sacha inchi is a super seed primarily grown in the Amazon rainforest of Peru. One of the main products obtained from seeds is oil. This product is rich in polyunsaturated fatty acids, tocopherols, and sterols. The objective of this work was to authenticity evaluate of the Sacha inchi oil by means of characterization of phenols, volatile compounds, and sensory profile. The phenolic and volatile compounds were analyzed using liquid chromatog.-electrospray ionization-time of flight/mass spectrometry (HPLC-ESI-TOF/MS) and headspace solid phase microextraction combined with gas chromatog. and mass spectrometry (HS-SPME/GC-MS), resp. A total of 16 phenolic compounds were detected in com. Sacha inchi oils, while 54 compounds have been found in the volatile fraction. These compounds mainly correspond to notes generated by alcs., aldehydes, acids, ketones, and terpenoids. Principal component anal. (PCA) showed that the first two PCs account for 71.13% of total variance. Statistical anal. was used to observe the relationships between phenolic and volatile compounds; therefore, consequently, it has been found that 16 volatile compounds may have a significant influence upon overall perceived flavor and odor of the com. Sacha inchi oils. According to the odor and flavor, the Sacha inchi oil is characterized by “”green”” odor notes, seed, dried fruit and rough.

Food Research International published new progress about Acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Recommanded Product: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gou, Bo-Bo published the artcileScandium Triflate Catalyzed Tandem Transfer Hydrogenation and Cyclization Reaction of o-Aminobenzaldehydes and o-Aminoacetophenone with Alcohols, COA of Formula: C5H12O, the main research area is benzoxazine preparation; aminobenzaldehyde alc tandem hydrogenation cyclization reaction scandium triflate catalyst; alc aminoacetophenone tandem hydrogenation cyclization reaction scandium triflate catalyst.

An effective Sc-catalyzed transfer hydrogenation and cyclization tandem reaction has been achieved. This process showed excellent functional group compatibility and good yields. A variety of benzoxazines I (R = H, Me; R1 = H, Me, Et; R2 = Me, Ph, naphthalen-1-yl, thiophen-2-ylmethyl, etc.; R1R2 = -(CH2)5-; R3 = H, F, Cl, Me, Br; R4 = H, Me; R5 = H, Me, Cl, Br) were produced with primary or secondary alcs. R2(R3)CH2OH as a hydrogen source. Furthermore, the utility of this newly developed protocol is demonstrated through scaled-up experiment, late-stage modification, and preliminary exploration of enantioselective synthesis.

Journal of Organic Chemistry published new progress about Acetophenones Role: RCT (Reactant), RACT (Reactant or Reagent) (o-amino). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, COA of Formula: C5H12O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Fokin, Igor published the artcileChemoselective Electrochemical Hydrogenation of Ketones and Aldehydes with a Well-Defined Base-Metal Catalyst, COA of Formula: C5H12O, the main research area is alc preparation chemoselective green chem; ketone electrochem hydrogenation manganese complex catalyst; aldehyde electrochem hydrogenation manganese complex catalyst; catalysis; homogeneous catalysis; molecular electrochemistry; reaction mechanisms; spectroelectrochemistry.

An electrochem. method for the hydrogenation of ketones RC(O)R1 [R = Me, Et; R1 = CH3, CH2CH3, (CH2)2CH3, (CH2)2CH=C(CH3)2, (CH2)2CH=CH2] and aldehydes R2CHO [R2 = (CH2)3CH3, (CH2)4CH3, (CH2)2CH=CH2] by in situ formation of a Mn-H species has been described. The protons and elec. current as surrogate for H2 and a base-metal complex to form selectively the alcs. RCH(OH)R1 and R2CH2OH have been described. The method is chemoselective for the hydrogenation of C=O bonds over C=C bonds. Mechanistic studies revealed initial 3 e- reduction of the catalyst forming the steady state species [Mn2(H-1L)(CO)6]-. Subsequently, the protonation, reduction and internal proton shift forming the hydride species has been described. Finally, the transfer of the hydride and a proton to the ketone yields the alc. and the steady state species is regenerated via reduction The interplay of two manganese centers and the internal proton relay represent the key features for ketone and aldehyde reduction as the resp. mononuclear complex and the complex without the proton relay are barely active.

Chemistry – A European Journal published new progress about Aliphatic alcohols Role: SPN (Synthetic Preparation), PREP (Preparation). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, COA of Formula: C5H12O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts