Category: alcohols-buliding-blocks

Li, Jun published the artcileSynthesis, properties and drug potential of the photosensitive alkyl- and alkylsiloxy-ligated silicon phthalocyanine Pc 227, SDS of cas: 597-52-4, the publication is Photochemical & Photobiological Sciences (2014), 13(12), 1690-1698, database is CAplus and MEDLINE.

The photosensitive, alkyl- and alkylsiloxy-ligated Si phthalocyanine, SiPc[(CH₂)₃SH][OSiMe₂(CH₂)₃NMe₂], Pc 227, was prepared and characterized. This phthalocyanine yields the exptl. photodynamic therapy (PDT) drug Pc 4, SiPc[OH][OSiMe₂(CH₂)₃NMe₂], when irradiated with red light. To provide an understanding of the process by which Pc 227 and other alkyl-alkylsiloxysilicon phthalocyanines such as Pc 227 are photolyzed, bond dissociation energy, natural bond orbital (NBO) charge distribution, spin d. distribution, nucleus-independent chem. shift (NICS), and electron localization function (ELF) calculations were carried out on two models related to it. These show that the lowest energy pathway for the photolysis of Pc 227 is a homolysis involving a phthalocyanine π radical having a low Si_Pc-C bond dissociation energy. The promise of the results of this study for synthetic chem. and drug development is discussed.

Photochemical & Photobiological Sciences published new progress about 597-52-4. 597-52-4 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is Triethylsilanol, and the molecular formula is C6H16OSi, SDS of cas: 597-52-4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Wang, Xuewei published the artcileYnamide-Mediated Intermolecular Esterification, Recommanded Product: 4-(1H-Pyrrol-1-yl)phenol, the publication is Journal of Organic Chemistry (2020), 85(9), 6188-6194, database is CAplus and MEDLINE.

An ynamide-mediated one-pot, two-step intermol. esterification via the condensation of carboxylic acids with nucleophilic hydroxyl species is reported. A broad substrate scope with respect to carboxylic acids, alcs., and phenols is observed The α-acyloxyenamide intermediates formed by the addition of carboxylic acids to ynamides proved to be effective acylating reagents for the esterification of alc. and phenol derivatives with the assistance of base catalysis. Notably, the racemization of the α-chiral center of carboxylic acids can be avoided.

Journal of Organic Chemistry published new progress about 23351-09-9. 23351-09-9 belongs to alcohols-buliding-blocks, auxiliary class Pyrrole,Benzene,Alcohol, name is 4-(1H-Pyrrol-1-yl)phenol, and the molecular formula is C18H35NO, Recommanded Product: 4-(1H-Pyrrol-1-yl)phenol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Wang, Hou published the artcileEnantioseparation of amino acid and mandelic acid enantiomers using Garphos derivatives as chiral extractants, Application of 2-Hydroxy-2-phenylacetic acid, the publication is Chirality (2022), 34(9), 1239-1246, database is CAplus and MEDLINE.

In this paper, Garphos with different substituents were employed as chiral extractants to enantiosep. racemic amino acid and mandelic acid. The influences of metal precursors, pH of aqueous solution, Garphos-metal concentration, extraction temperature, and substituent effect on extraction were investigated. The results indicated that the substituent groups significantly affected the π-π interaction between extractant and substrate. And the separation factors (α) for Garphos could be remarkably improved by regulating substituent groups. Garphos-II-Pd, Garphos-VI-Pd, Garphos-III-Pd, Garphos-I-Cu, Garphos-VI-Cu, and Garphos-V-Pd were the most efficient extractants for phenylalanine (Phe), homophenylalanine (Hphe), 4-nitrophenylalanine (Nphe), 3-chlorophenylglycine (Cpheg), mandelic acid (MA), and 2-chlormandelic acid (CMA) with α values of 2.40, 2.37, 5.37, 1.59, 5.98, and 3.69, resp. This work provided an important reference for the design of efficient chiral extractants in future work.

Chirality published new progress about 90-64-2. 90-64-2 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Alcohol,Natural product, name is 2-Hydroxy-2-phenylacetic acid, and the molecular formula is C21H20BrNO4S, Application of 2-Hydroxy-2-phenylacetic acid.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Chen, Jiayu published the artcileCharacterization of the key differential volatile components in different grades of Dianhong Congou tea infusions by the combination of sensory evaluation, comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry, and odor activity value, Synthetic Route of 106-25-2, the publication is LWT–Food Science and Technology (2022), 113755, database is CAplus.

Aroma is an important factor in evaluating tea infusion quality. In this study, the aroma quality of 44 Dianhong Congou tea infusions was classified into high-quality group and non-high-quality group according to the sensory evaluation. The volatile components were investigated by using headspace solid phase microextraction combined with comprehensive two-dimensional gas chromatog.-time-of-flight mass spectrometry. A total of 258 volatile components were identified, of which the three component types with the highest relative percentages were alcs. (17.05%), aldehydes (15.12%), and heterocycles (15.12%). Clear discrimination was achieved by orthogonal partial least squares discrimination anal. (R2Y = 0.94, Q2 = 0.82). In addition, 69 important differential compounds were identified based on variable importance in the projection value (VIP > 1.0) and one-way ANOVA (p < 0.05). Moreover, seven common key odorants with odor activity values (OAVs) >1 were screened out, including (E, E)-2,4-heptadienal, linalool, 1-octene-3-one, geraniol, β-myrcene, (Z)-4-heptenal, and nonanal. Aroma character impact value indicated that linalool performed a pos. supportive role in the aroma quality of Dianhong Congou tea infusions, while (E, E)-2,4-heptadienal neg. affected the aroma quality. These results contribute to providing a theor. support for directional processing of high-quality black tea.

LWT–Food Science and Technology published new progress about 106-25-2. 106-25-2 belongs to alcohols-buliding-blocks, auxiliary class Natural product, name is cis-3,7-Dimethyl-2,6-Octadien-1-Ol, and the molecular formula is C10H18O, Synthetic Route of 106-25-2.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Hasegawa, Tadashi published the artcileNovel biradical cyclization via remote-hydrogen transfer in photochemistry of 2-(dialkylamino)ethyl 3-benzoylacrylates, Computed Properties of 101-98-4, the publication is Bulletin of the Chemical Society of Japan (1993), 66(10), 3128-31, database is CAplus.

2-(Dibenzylamino)ethyl and 2-(benzylmethylamino)ethyl 3-benzoylacrylate underwent photocyclization via remote-proton transfer from their (Z)-forms competing with (E)-(Z) isomerization. The quantum yield for the cyclization when both (E)- and (Z)-isomers absorb the irradiating light was estimated to be 0.05 by applying the steady-state approximation

Bulletin of the Chemical Society of Japan published new progress about 101-98-4. 101-98-4 belongs to alcohols-buliding-blocks, auxiliary class Amine,Benzene,Alcohol, name is 2-(Benzyl(methyl)amino)ethanol, and the molecular formula is C10H15NO, Computed Properties of 101-98-4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Qi, Xiao-ru published the artcileAnalysis on phenolic compounds and aroma components in four kinds of fruit concentrated juice, Safety of Triethylsilanol, the publication is Shipin Keji (2018), 43(2), 279-285, database is CAplus.

In 4 different kinds of fruit concentrated juice as raw materials, using high performance liquid chromatog. (HPLC) and gas chromatog. mass spectrometry (GC-MS) determination of the content of the 12 monomer phenols and aromatic components, and then analyzes the characteristics of 4 kinds of phenolic substances in fruit concentrated juice and aroma components. HPLC anal. results showed that the total amount of monomeric phenols in the concentrated red jujube juice was the highest, up to 17.6847 mg/L. Followed by concentrated hawthorn juice, the content of 16.4618 mg/L. The concentrated grape juice was 5.5437 mg/L, the concentrated red jujube juice treated with decoloration and deacidification was 4.4181 mg/L. GC-MS anal. results showed that 102 kinds of aroma compounds were detected from 4 kinds of concentrated juice, including 29 kinds of concentrated grape juice, 23 kinds of decolorization and deacidifica concentrated jujube juice, 51 kinds of concentrated hawthorn juice and 53 kinds of common concentrated red date juice, the experiments provided a theor. basis for the evaluation of the quality of the concentrated juice.

Shipin Keji published new progress about 597-52-4. 597-52-4 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is Triethylsilanol, and the molecular formula is C6H16OSi, Safety of Triethylsilanol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Ni, Ruijie published the artcileCharacterization of key odorants in fried red and green huajiao (Zanthoxylum bungeanum maxim. and Zanthoxylum schinifolium sieb. et Zucc.) oils, Recommanded Product: cis-3,7-Dimethyl-2,6-Octadien-1-Ol, the publication is Food Chemistry (2022), 131984, database is CAplus and MEDLINE.

Fried huajiao oil (FHO) samples prepared with red or green huajiao are widely applied in different Chinese cuisines due to their own aroma characteristics. To investigate their different aroma profiles, 2 red and 3 green FHOs were analyzed by quant. descriptive sensory anal. (QDA) and gas chromatog.-olfactometry/aroma intensity (GC-O/AI). QDA results showed a distinct difference among FHOs in terms of all sensory attributes. Thirty odorants with high OAVs and AIs were screened from 5 FHOs, among which β-myrcene, (E)-2-heptenal, limonene, α-terpineol and p-cymene were the major characteristic compounds of FHOs. In addition, through orthogonal partial least square discriminate anal. (OPLS-DA), linalool, linalyl acetate, and 1,8-cineole were considered as the volatile markers for classification of FHOs with red and green huajiao. Thereafter, aroma recombination and omission tests were performed to characterize the key aroma compounds of red and green FHOs.

Food Chemistry published new progress about 106-25-2. 106-25-2 belongs to alcohols-buliding-blocks, auxiliary class Natural product, name is cis-3,7-Dimethyl-2,6-Octadien-1-Ol, and the molecular formula is C10H18O, Recommanded Product: cis-3,7-Dimethyl-2,6-Octadien-1-Ol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Millar, Shannon published the artcileSome observations on detritylation in solid-phase oligonucleotide synthesis, COA of Formula: C19H14O2, the publication is Nucleic Acids Symposium Series (2008), 52(1), 311-312, database is CAplus and MEDLINE.

A symposium. The quality of oligodeoxyribonucleotides prepared by solid phase synthesis under different acid treatment time was compared. Much shorter acid delivery time did not lead to significant decrease of the full length products.

Nucleic Acids Symposium Series published new progress about 596-38-3. 596-38-3 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Benzene,Alcohol, name is 9-Phenyl-9H-xanthen-9-ol, and the molecular formula is C19H14O2, COA of Formula: C19H14O2.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Zhang, Huimin published the artcileOptimization of ultrasound and microwave-assisted extraction of sweet cherry tree branches and chemical component analysis by UPLC-MS/MS, Computed Properties of 621-37-4, the publication is Trees (Heidelberg, Germany) (2021), 35(4), 1247-1256, database is CAplus.

Key message: Sweet cherry tree branches have important food and medicinal value. The ultrasound and microwave-assisted extraction method is more efficient with higher yield than conventional extraction methods (heat-reflux, Soxhlet, etc.). Plant byproducts are known as sources of natural bioactive compounds The objective of this study was to rationally use sweet cherry tree branches (SCTB) discarded during pruning. Ultrasonication and microwaves are considered green techniques, and an ultrasound and microwave-assisted extraction (UMAE) method was established to obtain extracts from SCTB by response surface methodol. A math. model was established using the Box-Behnken design, and the effects of various factors and their interactions were analyzed as well. Taking the yield (weight/weight) as the objective, the optimal process conditions for UMAE of SCTB were 56 mL·g^-1 liquid-solid ratio, 34 min extraction time, and 40-50 mesh particle size. The yield of SCTB extracts was 5.02%, which was close to the theor. prediction. The optimized extraction process can obtain a higher yield than that of conventional extraction methods. The chem. composition of the extracts was identified by HPLC-MS/MS, and 400 metabolites, including carboxylic acids and derivatives (29%), fatty acyls (19%), organooxygen compounds (15%), flavonoids (12%), benzene and substituted derivatives (12%), phenols (8%), and imidazopyrimidines (5%), were annotated and classified. L-arginine and mannitol were the main chem. components of the SCTB extracts, suggesting their potential uses in the food and medical industries.

Trees (Heidelberg, Germany) published new progress about 621-37-4. 621-37-4 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Phenol,Natural product, name is 3-Hydroxyphenylacetic acid, and the molecular formula is C15H14O, Computed Properties of 621-37-4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Meng, Qinglei published the artcileSustainable production of benzene from lignin, Category: alcohols-buliding-blocks, the publication is Nature Communications (2021), 12(1), 4534, database is CAplus and MEDLINE.

Benzene is a widely used commodity chem., which is currently produced from fossil resources. Lignin, a waste from lignocellulosic biomass industry, is the most abundant renewable source of benzene ring in nature. Efficient production of benzene from lignin, which requires total transformation of Csp2-Csp3/Csp2-O into C-H bonds without side hydrogenation, is of great importance, but has not been realized. Here, we report that high-silica HY zeolite supported RuW alloy catalyst enables in situ refining of lignin, exclusively to benzene via coupling Bronsted acid catalyzed transformation of the Csp2-Csp3 bonds on the local structure of lignin mol. and RuW catalyzed hydrogenolysis of the Csp2-O bonds using the locally abstracted hydrogen from lignin mol., affording a benzene yield of 18.8% on lignin weight basis in water system. The reaction mechanism is elucidated in detail by combination of control experiments and d. functional theory calculations The high-performance protocol can be readily scaled up to produce 8.5 g of benzene product from 50.0 g lignin without any saturation byproducts. This work opens the way to produce benzene using lignin as the feedstock efficiently.

Nature Communications published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts