Intramolecular nucleophilic addition to unsaturated carbon. Dependence of cyclization efficiency on the method of carbon-carbon bond cleavage utilized to generate the reactive species
作者:Leo A. Paquette、John P. Gilday、George D. Maynard
DOI:10.1021/jo00282a019
日期:1989.10
KRIEF, A.;BARBEAUX, PH., J. CHEM. SOC. CHEM. COMMUN.,(1987) N 16, 1214-1216
作者:KRIEF, A.、BARBEAUX, PH.
DOI:——
日期:——
Original syntheses of arylcycloalkanes
作者:Alain Krief、Philippe Barbeaux
DOI:10.1039/c39870001214
日期:——
Arylcycloalkanes have been prepared from acetophenone by a three-step sequence involving the synthesis of α-pheny(ω-alkenyl)methylselenides and their reaction with butyl-lithium reagents to give an intermediate which adds across the CC double bond to give 2-methyl-2-phenylcycloalkylmethyl-lithiums with stereocontrol; other syntheses of these compounds are also described.
Intermolecular Carbosilylation of α‐Olefins with C(sp
<sup>3</sup>
)−C(sp) Bond Formation Involving Silylium‐Ion Regeneration
作者:Tao He、Zheng‐Wang Qu、Hendrik F. T. Klare、Stefan Grimme、Martin Oestreich
DOI:10.1002/anie.202203347
日期:2022.6.13
two-component reaction. These alkynylsilanes and the silylium-ion initiator form bis(silylated) ketene-like carbocations as the actual catalysts (gray box). This new carbosilylation enables the formation of a C(sp3)−C(sp) bond (see scheme).