Tandem Carbon−Carbon Bond Constructions via Catalyzed Cyanation/Brook Rearrangement/C-Acylation Reactions of Acylsilanes
作者:Xin Linghu、David A. Nicewicz、Jeffrey S. Johnson
DOI:10.1021/ol0263649
日期:2002.8.1
see text] A tandem nucleophile-catalyzed cyanation/Brookrearrangement/C-acylation has been developed. Phase transfer cocatalysts facilitate cyanide-catalyzed reactions between acylsilanes and cyanoformates to afford protected tertiary carbinol products. A catalytic cycle is proposed involving cyanation of an acylsilane, [1,2]-Brook rearrangement, and C-acylation of the derived carbanion by a cyanoformate
Oxidative [1,2]-Brook Rearrangements Exploiting Single-Electron Transfer: Photoredox-Catalyzed Alkylations and Arylations
作者:Yifan Deng、Qi Liu、Amos B. Smith
DOI:10.1021/jacs.7b05165
日期:2017.7.19
Oxidative [1,2]-Brook rearrangements via hypervalent silicon intermediates induced by photoredox-catalyzed single-electron transfer have been achieved, permitting the formation of reactive radical species that can engage in alkylations and arylations.
Four‐Component Strain‐Release‐Driven Synthesis of Functionalized Azetidines
作者:Jasper L. Tyler、Adam Noble、Varinder K. Aggarwal
DOI:10.1002/anie.202214049
日期:2022.12.23
A multicomponent [1,2]-Brook rearrangement/strain-release-driven anion relay sequence and its application to the modular synthesis of substituted azetidines is described. Three electrophilic coupling partners, whose identities can be individually varied, were added sequentially to the highly strained fragment azabicyclo[1.1.0]butyl-lithium to access a diverse compound library.