Organometallic reaction in aqueous media. A samarium induced, efficient, synthesis of homoallyl hydroxylamines and hydrazides
摘要:
Samarium can be used directly for the allylation of aldonitrones and hydrazones in aqueous media in the presence of Bu4NBr. (C) 2001 Elsevier Science Ltd. All rights reserved.
Friedel–Crafts Addition of Indoles to Nitrones Promoted by Trimethylsilyl Trifluoromethanesulfonate
作者:Zachary Z. Oracheff、Helen L. Xia、Christopher D. Poff、Scott E. Isaacson、C. Wade Downey
DOI:10.1021/acs.joc.1c01551
日期:2021.12.3
Friedel–Crafts addition to aryl and secondary alkyl nitrones in the presence of trimethylsilyl trifluoromethanesulfonate and trialkylamine to produce 3-(1-(silyloxyamino)alkyl)indoles. Spontaneous conversion to bisindolyl(aryl)methanes, which is thermodynamically favored for nitrones derived from aromatic aldehydes, is suppressed under the reaction conditions. The silyloxyamino group can be deprotected with