Heteroatom-stabilized allylic cations in 4+3 cycloadditions. A tandem Peterson olefination/4+3 cycloaddition reaction
作者:Michael Harmata、Darin E. Jones
DOI:10.1016/s0040-4039(97)00775-2
日期:1997.6
The readily available tertiary alcohols 4a-c react with selected dienes in the presence of titanium tetrachloride to give 4+3 cycloaddition products. The process is best rationalized as a Peterson olefination followed by allylic cation formation and 4+3 cycloaddition. (C) 1997 Elsevier Science Ltd.
Vinyl Oxocarbenium Ions in Intermolecular [4 + 3] Cycloaddition Reactions
作者:Michael Harmata、Darin E. Jones
DOI:10.1021/jo962374+
日期:1997.3.1
The cerium (III) mediated reaction of trimethylsilylmethyl magnesium chloride with esters and lactones: The efficient synthesis of some functionalised allylsilanes of use in annulation reactions
作者:Thomas V. Lee、Julia A. Channon、Carmel Cregg、John R. Porter、Frances S. Roden、Helena T-L. Yeoh
DOI:10.1016/s0040-4020(01)89114-6
日期:1989.1
(111) chloride alters the chemoselectivity of the reaction of trimethylsilylmethyl magnesiumchloride with ester-acetals and also greatly improves the efficiency of reaction with lactones. In addition it gives improved preparations of the useful intermediates (7), (13), (18),(20) and (22) and gives direct access to the valuable functionalised allylsilanes (1) to (3) of use in annulation reactions.