A palladium-catalyzed process to construct oxazoles and oxazolines with broad functional-group tolerance has been developed, and the method introduces difluoromethyl groups into heterocycles in a one-pot fashion. This system uses a carbonyl oxygen as the acceptor for the addition of a vinylpalladium intermediate to achieve the cyclization. Oxazoline derivatives are generated as the Z-isomer with high
Regioselective Synthesis of Multifunctional Allylic Amines; Access to Ambiphilic Aziridine Scaffolds
作者:Dean D. Roberts、Mark G. McLaughlin
DOI:10.1021/acs.orglett.1c01398
日期:2021.6.4
propargylic amines. The reaction utilizes a PtCl2/XantPhos catalyst system to deliver hydrosilanes across the alkyne to afford multifunctional allylic amines in high yields. The reaction is tolerant to a wide variety of functional groups and provides high value intermediates with two distinct functional handles. The synthetic applicability of the reaction has been shown through the synthesis of diverse ambiphilic
Facile expeditious one-pot synthesis and antifungal evaluation of disubstituted 1,2,3-triazole with two amide linkages
作者:C. P. Kaushik、Raj Luxmi
DOI:10.1080/00397911.2017.1369124
日期:2017.12.2
A library of twenty five amide linked 1,4-disubstituted 1,2,3-triazoles have been prepared through a facile expeditious synthetic protocol involving Cu(I) mediated cyclization of N-(2-methylbut-3-yn-2-yl)aromatic amides and in situ generated 2-azido-N-substituted propanamides. Structures of newly synthesized compounds (5a-5y) were confirmed by analytical techniques, such as FTIR, H-1 NMR, C-13 NMR, and HRMS. In vitro antifungal activity was also examined against two fungal strains Candida albicans and Aspergillus niger by serial dilution method. The compounds 5m and 5w exhibited appreciable potent activity.[GRAPHICS].
SHARMA, ASHOK K.
作者:SHARMA, ASHOK K.
DOI:——
日期:——
N-acetonyl-substituted-amides, compositions containing them and their use in combating fungi