COLVIN, ERNEST W.;MONTEITH, MICHAEL, J. CHEM. SOC. CHEM. COMMUN.,(1990) N8, C. 1230-1232
作者:COLVIN, ERNEST W.、MONTEITH, MICHAEL
DOI:——
日期:——
Allenylmethylsilanes as Nucleophiles in <i>N</i>-Acyliminium Ion Chemistry
作者:Gertjan Mentink、Jan H. van Maarseveen、Henk Hiemstra
DOI:10.1021/ol026615d
日期:2002.10.1
precursors with 2,3-butadienyl(trimethyl)silane and related allenes in the presence of BF(3).OEt(2) provides good yields of N-protected 2-(aminomethyl)-substituted 1,3-dienes, which prove to be useful substrates for subsequent Diels-Alder and alkene metathesis reactions. [reaction: see text]
The N-chlorosulphonyl β-lactams formed as intermediates in the reaction between chlorosulphonyl isocyanate and allyl- and (allenylmethyl)-silanes can be intercepted by aqueous sodium sulphite; this has allowed the preparation of a range of usefully functionalised monocyclic N-protio β-lactams.