[EN] SILYLATION OF AROMATIC HETEROCYCLES BY DISILANES USING POTASSIUM ALKOXIDE CATALYSTS<br/>[FR] SILYLATION D'HÉTÉROCYCLES AROMATIQUES PAR DISILANES À L'AIDE DE CATALYSEURS D'ALCOXYDE DE POTASSIUM
申请人:CALIFORNIA INST OF TECHN
公开号:WO2016100606A1
公开(公告)日:2016-06-23
The present invention describes chemical systems and methods for silylating heteroaromatic organic substrates, said system consisting essentially of a mixture of (a) at least one organodisilane and (b) at least alkoxide base, preferably a potassium alkoxide base, and said methods comprising contacting a quantity of the organic substrate with a mixture consisting essentially of (a) at least one organodisilane and (b) at least one alkoxide base, preferably a potassium alkoxide, under conditions sufficient to silylate the heteroaromatic substrate.
Eine neue Methode zur Synthese 3-substituierter Indole durch<i>ipso</i>-Substitution
作者:Michal W. Majchrzak、Gerhard Simchen
DOI:10.1055/s-1986-31836
日期:——
An New Method for the Synthesis of 3-Substituted Indoles by ipso-Substitution Acylation of 3-(trimethylsilyl)-indole 1a with acylhalides 2 affords 3-acylindoles 4. 3-(Trimethylsilyl)-indoles 1a, b react with Michael-acceptors 5 and 8 in presence of Lewis acids to yield the 3-substituted indoles 6, 9, and 10.