Selective Functionalization of Achmatowicz Rearrangement Products by Reactions with Potassium Organotrifluoroborates under Transition-Metal-Free Conditions
作者:Silvia Roscales、Víctor Ortega、Aurelio G. Csákÿ
DOI:10.1021/acs.joc.8b01643
日期:2018.9.21
The repertoire of synthetic transformations of the products of the Achmatowiczrearrangement has been expanded by exploring their reactivity with potassium organotrifluoroborates in the absence of transition metals. Depending on the reaction conditions and the substitution pattern of the starting material, the reaction may lead to the stereoselective synthesis of dihydropyranones (2,6-trans), tetrahydropyranones
Synthesis of 1,2,5- and 1,2,3,5-substituted pyrroles from substituted aziridines via Ag(I)-catalyzed intramolecular cyclization
作者:Jun Hee Kim、Sang Bin Lee、Won Koo Lee、Doo-Ha Yoon、Hyun-Joon Ha
DOI:10.1016/j.tet.2011.02.072
日期:2011.5
An efficient synthesis of 1,2,5- and 1,2,3,5-substituted pyrroles has been achieved from the sequential reactions including a ring-opening of 1-(aziridin-2-yl)propargylic alcohols by various nucleophiles under mild condition followed by an intramolecular cyclization using Ag(I) catalyst. (C) 2011 Published by Elsevier Ltd.