Mechanistic Investigation of the Ru-Catalyzed Hydroamidation of Terminal Alkynes
作者:Matthias Arndt、Kifah S. M. Salih、Andreas Fromm、Lukas J. Goossen、Fabian Menges、Gereon Niedner-Schatteburg
DOI:10.1021/ja111389r
日期:2011.5.18
The ruthenium-catalyzed hydroamidation of terminalalkynes has evolved to become a broadly applicable tool for the synthesis of enamides and enimides. Depending on the catalyst system employed, the reaction leads chemo-, regio-, and stereoselectively to a single diastereoisomer. Herein, we present a comprehensive mechanistic study of the ruthenium-catalyzed hydroamidation of terminalalkynes, which
A General and Efficient Heterogeneous Gold-Catalyzed Hydration of Nitriles in Neat Water under Mild Atmospheric Conditions
作者:Yong-Mei Liu、Lin He、Miao-Miao Wang、Yong Cao、He-Yong He、Kang-Nian Fan
DOI:10.1002/cssc.201200203
日期:2012.8
efficient catalyst for the selective hydration of a wide range of chemically diverse nitriles into valuable amides in neutral water, under mild atmospheric conditions (see image). The process shows promise for a facile and direct one‐pot synthesis of ε‐caprolactam, an industrially important molecule, starting from 6‐aminocapronitrile.
An efficient hydration of organonitriles to the corresponding amides was accomplished using 1,3-dimethylimidazolium hydrogen carbonate as an organocatalyst. The developed catalytic method was also applicable for the synthesis of metal phthalocyanines.
Copper(ii)-mediated oxidative cyclization of enamides to oxazoles
作者:Alison E. Wendlandt、Shannon S. Stahl
DOI:10.1039/c2ob25310k
日期:——
The copper(II)-mediated oxidative cyclization of enamides to oxazoles is reported. A range of 2,5-disubstituted oxazoles were prepared in moderate to good yields in two steps from simple amide and alkyne precursors.
Benzoyl Peroxide Promoted Radical<i>ortho</i>-Alkylation of Nitrogen Heteroaromatics with Simple Alkanes and Alcohols
作者:Lei Fang、Liangshun Chen、Jianjun Yu、Limin Wang
DOI:10.1002/ejoc.201403479
日期:2015.3
A catalytic amount of benzoylperoxide (BPO)-initiated cross-dehydrogenative coupling reaction of N-iminopyridine ylides with simplealkanes and alcohols leads to the corresponding 2-alkylpyridines with high regioselectivity in moderate to good yields without an additional reduction step to remove the activated group.