نتایج جستجو برای: α amino nitriles

تعداد نتایج: 366199  

Journal: :Angewandte Chemie 2013
Oskari K Karjalainen Martin Nieger Ari M P Koskinen

To All(oc) involved: A palladium-catalyzed formal 5-endo-trig heteroannulation of enones generated in situ from amino acid derived β-keto nitriles has been realized (see scheme; Alloc=allyl carbamate). The reaction proceeds with allyl-group transfer from the carbamate protecting group to generate two new contiguous stereocenters, including one quaternary center, with high selectivity.

Journal: :Chemical communications 2015
Ai-Jie Cai Yan Zheng Jun-An Ma

A novel, three-component C-C, C-N and C-O bond forming reaction is described. In the presence of 20 mol% CuO, this condensation reaction of CF3CHN2, nitriles, and aldehydes proceeds to afford CF3-substituted oxazolines in moderate to high yields with excellent diastereoselectivities. Subsequent ring-opening of oxazolines gives rise to the corresponding vicinal amino alcohols.

2017
Yan-Yun Liu Xu-Heng Yang Ren-Jie Song Shenglian Luo Jin-Heng Li

Difunctionalization of alkenes has become a powerful tool for quickly increasing molecular complexity in synthesis. Despite significant progress in the area of alkene difunctionalization involving the incorporation of a nitrogen atom across the C-C double bonds, approaches for the direct 1,2-carboamination of alkenes to produce linear N-containing molecules are scarce and remain a formidable ch...

Journal: :Asian Journal of Organic Chemistry 2023

The functional group transformation associated with nitrile moiety is considered a diligent research topic in the synthetic community as it building block for several organic molecules, including ketones and amides. Many methodologies have been developed synthesizing amides, considering them analogues exciting biological properties. However, there are limited articles to synthesize these import...

2017
Aleksey Yu Vorob’ev Vyacheslav I Supranovich Gennady I Borodkin Vyacheslav G Shubin

An efficient and operationally simple synthesis of 7-deuteropyrazolo[1,5-a]pyridine and 7-deutero-1,2,4-triazolo[1,5-a]pyridine derivatives using α-H/D exchange of 1-aminopyridinium cations in basic D2O followed by a 1,3-cycloaddition of acetylenes and nitriles is presented. A high regioselectivity and a high degree of deuterium incorporation were achieved. The procedure was applied for several...

2015
Lei Zhu Taku Kitanosono Pengyu Xu Shū Kobayashi

The promising performance of copper(II) complexes was demonstrated for asymmetric boron conjugate addition to α,β-unsaturated nitriles in water. The catalyst system, which consisted of Cu(OAc)2 and a chiral 2,2'-bipyridine ligand, enabled β-borylation and chiral induction in water. Subsequent protonation, which was accelerated in aqueous medium, led to high activity of this asymmetric catalysis...

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