Efficient coupling reactions of lithium alkynyl(triisopropoxy)borates with aryl halides: application to the antifungal terbinafine synthesis
作者:Chang Ho Oh、Seung Hyun Jung
DOI:10.1016/s0040-4039(00)01543-4
日期:2000.10
Thermally stable lithiumalkynyl(triisopropoxy)borates were reacted with several aryl halides in the presence of palladium catalysts to give the corresponding cross-coupling products in excellent yields. The present methodology has been successfully applied to the antifungal terbinafine synthesis.
Intramolecular cyclizations of cyclopropenes with indole
作者:Peng-Long Zhu、Xiang-Ying Tang、Min Shi
DOI:10.1039/c6cc02226j
日期:——
Novel intramolecular cycloisomerizations of nitrogen-tethered cyclopropenes with indole in the presence of Bronsted acid have been developed. The reaction proceeded through the same pathway but stopped at different stage according...
A new reagent Na2S/MeOH for silyl deprotection has been developed. The reagent has several advantages which include deprotection of C-TMS, O-TMS, O-TBS, and O-TBDPS, selective removal of C-TMS and O-TMS in the presence of O-TBS and simultaneous desilylation and sulfide formation in one pot. (c) 2015 Elsevier Ltd. All rights reserved.