time, hetero(aryl) Grignardreagents to promote selective dicarbofunctionalization of enol silyl ethers. From a broader perspective, this work expands the synthetic utility of enol silyl ethers and establishes bisphosphine–iron catalysis as enabling technology capable of orchestrating selective C–C bond formations with short-lived α-silyloxy radicals with practical implications towards sustainable chemical
Tandem aldol-allylation reactions: Double CC bond formation using silicon-tethered dinucleophiles
作者:Lisa M. Frost、Julian D. Smith、David J. Berrisford
DOI:10.1016/s0040-4039(98)02126-1
日期:1999.3
A new tandem CCbond forming process has been developed which utilises silicon-tethered dinucleophiles and acetals under Lewis acid conditions. The reaction incorporates a functionalised five carbon unit into both aromatic and aliphatic acetals, affording acyclic β-alkoxyhomoallylic alcohols in good yields.