作者:William I. Nicholson、Fabien Barreteau、Jamie A. Leitch、Riley Payne、Ian Priestley、Edouard Godineau、Claudio Battilocchio、Duncan L. Browne
DOI:10.1002/anie.202106412
日期:2021.9.27
The direct mechanochemical amidation of esters by ball milling is described. The operationally simple procedure requires an ester, an amine, and substoichiometric KOtBu and was used to prepare a large and diverse library of 78 amide structures with modest to excellent efficiency. Heteroaromatic and heterocyclic components are specifically shown to be amenable to this mechanochemical protocol. This
Dehydrogenative amide synthesis from alcohol and amine catalyzed by hydrotalcite-supported gold nanoparticles
作者:Jiangling Zhu、Yan Zhang、Feng Shi、Youquan Deng
DOI:10.1016/j.tetlet.2012.04.048
日期:2012.6
Hydrotalcite-supported nano-gold (Au/HT) was found to be a highly efficient heterogeneous catalyst for the dehydrogenative synthesis of amidefromalcohol and amine. Amines and alcohols with different structures could be converted into the amides under mild reaction conditions with up to 98% isolated yields. Mechanism exploration suggested that ester might be the reaction intermediate.
Thioisomünchnones versus Acrylamides via Copper-Catalyzed Reaction of Thioamides with Diazocarbonyl Compounds
作者:Vladimir G. Ilkin、Valeriy O. Filimonov、Eugenia A. Seliverstova、Mikhail S. Novikov、Tetyana V. Beryozkina、Aleksey A. Gagarin、Nataliya P. Belskaya、Nibin Joy Muthipeedika、Vasiliy A. Bakulev、Wim Dehaen
DOI:10.1021/acs.joc.2c01352
日期:2022.9.16
was developed by intermolecular copper-catalyzed reactions of diazoacetamides with aromatic and heteroaromatic thioamides bearing a pyrrolidine moiety. The direction of the reaction can be switched toward 2-amino-2-heteroarylacrylamides by replacing the pyrrolidine with an aniline group or by the use of 2-cyano-2-diazoacetamides. The proposed mechanism and DFT calculations allowed us to rationalize the
Process for 5-aroylation of 1,2-dihydro-3H-pyrrolo(1,2-a)pyrrole-1-carboxylic esters and nitriles
申请人:SYNTEX (U.S.A.) INC.
公开号:EP0053021A2
公开(公告)日:1982-06-02
A process for 5-aroylation of 1,2-dihydro-3H-pyrrolo [1,2-a]pyrrole-1-carboxylic esters and nitriles by reacting a pyrrolo pyrrole
with an aroyl morpholide
and an inorganic acid chloride in an inert aprotic solvent; followed by treatment with weak or strong base to form:
The nitrile (V) can be hydrolyzed to the acid (III).