نتایج جستجو برای: higher alcohols synthesis has

تعداد نتایج: 3660605  

Journal: :Chemical communications 2005
Hong-Tai Chang Masilamani Jeganmohan Chien-Hong Cheng

An efficient method for the synthesis of benzolactones and benzolactams via a cobalt-catalyzed [2 + 2 + 2] cocyclotrimerization of alkynyl alcohols and alkynyl amines with propiolates is described.

Journal: :Plant physiology 2017
Xianpeng Yang Huayan Zhao Dylan K Kosma Pernell Tomasi John M Dyer Rongjun Li Xiulin Liu Zhouya Wang Eugene P Parsons Matthew A Jenks Shiyou Lü

We report n-6 monounsaturated primary alcohols (C26:1, C28:1, and C30:1 homologs) in the cuticular waxes of Arabidopsis (Arabidopsis thaliana) inflorescence stem, a class of wax not previously reported in Arabidopsis. The Arabidopsis cer17 mutant was completely deficient in these monounsaturated alcohols, and CER17 was found to encode a predicted ACYL-COENZYME A DESATURASE LIKE4 (ADS4). Studies...

Journal: :Chemical communications 2014
Nana Wang Xiaoyuan Zou Juan Ma Feng Li

A novel strategy for the direct synthesis of N-alkylated amides from nitriles, aldoximes and alcohols was proposed and accomplished in the presence of a Cp*Ir complex.

Journal: :Journal of the American Chemical Society 2016
Daniel T Ziegler Gregory C Fu

Benzylic alcohols and ethers are common subunits in bioactive molecules, as well as useful intermediates in organic chemistry. In this Communication, we describe a new approach to the enantioselective synthesis of benzylic ethers through the chiral phosphine-catalyzed coupling of two readily available partners, γ-aryl-substituted alkynoates and alcohols, under mild conditions. In this process, ...

Journal: :Annals of Microbiology 2021

Abstract Purpose Higher alcohol is a by-product of the fermentation wine, and its content one most important parameters that affect are used to appraise final quality Chinese rice wine. Ammonium compensation an efficient convenient method reduce higher alcohols, but molecule mechanism poorly understood. Therefore, iTRAQ-based proteomic analysis was designed reveal changes Saccharomyces cerevisi...

Journal: :The Journal of organic chemistry 2003
Ji Duck Kim Ok Pyo Zee Young Hoon Jung

The diastereoselective synthesis of unsaturated aromatic 1,2-amino alcohols can be achieved on an epimeric mixture of optically active allylic ethers having a hydroxyl group attached to an allylic chiral center to the pi-system using chlorosulfonyl isocyanate. These reactions produced the unsaturated anti-1,2-amino alcohols either exclusively or predominantly only for aromatic derivatives. The ...

Journal: :The Journal of eukaryotic microbiology 2010
Sara Tucci Rostislav Vacula Juraj Krajcovic Peter Proksch William Martin

Euglena gracilis is able to synthesize adenosine triphosphate under anaerobic conditions through a malonyl-independent fatty acid synthesis leading to wax ester fermentation. Mitochondrial fatty acid synthesis uses acetyl-CoA and propionyl-CoA as C2- and C3-donors for de novo synthesis of even- and odd-numbered fatty acids, respectively. Euglena's wax ester fermentation has only been described ...

Journal: :The Journal of experimental biology 1976
M V Thomas

The anaesthetic effects of the aliphatic alcohols were used to measure their concentration at the neuronal surfaces of the cockroach central nervous system. The results were in most cases fairly closely described by first-order kinetics. The exchange half-times of the lower alcohols were only a few seconds, being little affected by the removal of the nerve sheath. The half-times for the higher ...

Journal: :Organic & biomolecular chemistry 2014
Huamin Wang Hui Chen Ya Chen Guo-Jun Deng

The palladium catalytic system was first applied to 2-arylquinazoline synthesis via hydrogen transfer methodology. Various (E)-2-nitrobenzaldehyde O-methyl oximes reacted easily with alcohols or benzyl amines to provide N-heterocyclic compounds in good to high yields. Similarly, the heterocyclic products could be prepared by the reaction of 1-(2-nitrophenyl)ethanone, urea and benzyl alcohols. I...

2017
Maryam MIRZA-AGHAYAN Farzaneh ALVANDI Mahdieh MOLAEE TAVANA Rabah BOUKHERROUB

Graphite oxide as a heterogeneous and recyclable solid acid catalyzed a simple and efficient method for the synthesis of β -amino alcohols by ring opening of epoxides with amines. This method is effective with various aromatic and aliphatic amines under solvent-free conditions. The corresponding β -amino alcohols are obtained in high yields (56%–95%) and short reaction times (15–30 min) with hi...

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