نتایج جستجو برای: higher alcohols synthesis has

تعداد نتایج: 3660605  

Journal: :Journal of Synthetic Organic Chemistry, Japan 1993

2007
Jose Luis Chiara Ángela García

Cyclic hydrazones are efficient ketyl radical acceptors in reductive coupling cyclizations mediated by samarium diiodide, affording cyclic amino alcohols with controlled stereochemistry at the new aminated stereocenter. This approach has been successfully applied to the stereoselective synthesis of a fully functionalized trehazolin cyclitol starting from D-glucose, where the required cyclic hyd...

2017
Michael W Gribble Michael T Pirnot Jeffrey S Bandar Richard Y Liu Stephen L Buchwald

We report a highly enantioselective CuH-catalyzed Markovnikov hydrosilylation of vinylarenes and vinyl heterocycles. This method has a broad scope and enables both the synthesis of isolable silanes and the conversion of crude products to chiral alcohols. Density functional theory calculations support a mechanism proceeding by hydrocupration followed by σ-bond metathesis with a hydrosilane.

Journal: :Chemical communications 2015
Sengodagounder Muthusamy Manickasamy Sivaguru Eringathodi Suresh

An atom-economical diastereoselective synthesis of indenodithiepines and indenodithiocines has been developed via a domino reaction of propargylic alcohols and dithioacetals in the presence of InCl3 as a catalyst. A range of functionalized dithiepines and dithiocines, fused to the indene ring, were obtained in good to excellent yields under mild conditions.

Journal: :Organic & biomolecular chemistry 2012
Agnes Prechter Harald Gröger Markus R Heinrich

The kinetic enzymatic resolution of azo acetates via aminolysis with Candida antarctica lipase B has been investigated using benzylamine as amine component. The products obtained from this biotransformation in high enantiomeric purity can serve as valuable precursors for various amino alcohols, as exemplified by the synthesis of the serotonin reuptake inhibitor (S)-(+)-cericlamine.

ژورنال: مواد پرانرژی 2017

Azide compounds have vast applications in military and civilian industries. Some of their applications include use in drug or drug intermediate production, macro cyclic polymer production through click reaction, automobile airbag production, energetic binders such as GAP,  oxidizer, plasticizer and burning rate control additive in solid composite propellants. Due to the wide range of appli...

Journal: :Journal of Organic Chemistry 2021

Secondary benzylic alcohols and diarylmethanols are common structural motifs of biologically active medicinally relevant compounds. Here we report their enantioselective synthesis by ?-arylation primary aliphatic under sequential catalysis integrating a Ru-catalyzed hydrogen transfer oxidation nucleophilic addition. The method can be applied to various aryl nucleophiles tolerating range functio...

Journal: :Organic & biomolecular chemistry 2012
Liang Fu Chang-Jiang Yao Ning-Jie Chang Jia-Rong Chen Liang-Qiu Lu Wen-Jing Xiao

An unprecedented oxidative cross-esterification in an equimolar mixture of dithiolanes, alcohols and water through a CDC/deprotection sequence has been developed. The reaction itself features simple experimental procedures under very mild conditions and offers a new strategic protocol for the direct and efficient synthesis of structurally diverse esters.

2014
Xiaojuan Yang Na Li

Cyanuric chloride has been found to be an efficient catalyst for the synthesis of 2,3-unsaturated O-glycosides from the reaction of 3,4,6-tri-O-acetyl-D-glucal and a wide range of alcohols in dichloromethane at room temperature. The experimental procedure is simple, and the products are obtained in high yields.

Journal: :Organic & biomolecular chemistry 2015
Zhou Xu Yong Li Jing Liu Nan Wu Ke Li Songlei Zhu Rongli Zhang Yi Liu

A mild catalyst system for the synthesis of chiral amino alcohols via asymmetric transfer hydrogenation (ATH) of α-phthalimide ketones has been developed by using a chiral Ru-TsDPEN complex as the catalyst in DMF/MeOH at 40 °C. The reaction exhibits high reaction activity and excellent enantioselectivity where up to 96% yield and 99% ee of the product were obtained.

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