The domino-Heck double cyclisation of the arylbromides 1, which contain an allylsilane and an alkyne moiety and are easily accessible by an addition of the corresponding lithiated alkynes 5 to the aldehydes 4, leads to the tetrasubstituted alkenes 2 and 3 in good yield. The reaction produces exclusively compounds with an E double bond and additionally proceeds with good to excellent induced diastereoselectivity
Formation of Scalemic Aziridines via the Nucleophilic Opening of Aziridines
作者:Stephen C. Bergmeier、Punit P. Seth
DOI:10.1021/jo962307f
日期:1997.4.1
A New Total Synthesis of the Marine Tunicate Alkaloid Lepadiformine
作者:Pu Sun、Cuixiang Sun、Steven M. Weinreb
DOI:10.1021/ol010179y
日期:2001.11.1
[GRAPHICS]A total synthesis of racemic lepadiformine has been achieved via a route that utilizes as key steps a novel stereocontrolled intramolecular spirocyclization of an allyisilane/N-acyliminium ion and the application of our radical-based methodology for production of N-acylimines from o-aminobenzamides.
.omega.-Alkoxy lactams as dipolar synthons. Silicon-assisted synthesis of azabicycles and a .gamma.-amino acid
作者:Henk Hiemstra、Wim J. Klaver、W. Nico Speckamp
DOI:10.1021/jo00180a046
日期:1984.3
Regioselective Silane-Terminated Intramolecular Heck Reaction with Alkenyl Triflates and Alkenyl Iodides