Regioselective synthesis of azetidines or pyrrolidines by selenium-induced cyclization of secondary homoallylic amines
摘要:
Azetidines or pyrrolidines can be regioselectively obtained by selenocyclization of homoallylic amines, according to the double bond substitution (C) 2010 Elsevier Ltd All rights reserved
Synthesis of conjugated δ-lactams using ring-closing metathesis
作者:S Rodrı́guez、E Castillo、M Carda、J.A Marco
DOI:10.1016/s0040-4020(01)01221-2
日期:2002.2
β-unsaturated amides. Ring-closingmetathesis of the latter with ruthenium catalyst PhCHRuCl2(PPh3)2 in the presence of Ti(OiPr)4 provided excellent yields of the corresponding conjugated δ-lactams with both disubstituted and trisubstituted CC bonds. Some specific trisubstitution patterns, however, as well as tetrasubstituted CC bonds, were not obtained. In these cases, even the use of a second generation
Regioselective synthesis of azetidines or pyrrolidines by selenium-induced cyclization of secondary homoallylic amines
作者:Xavier Franck、Stéphane Leleu、Francis Outurquin
DOI:10.1016/j.tetlet.2010.06.087
日期:2010.8
Azetidines or pyrrolidines can be regioselectively obtained by selenocyclization of homoallylic amines, according to the double bond substitution (C) 2010 Elsevier Ltd All rights reserved