作者:M. G. Vinogradov、M. S. Pogosyan、A. Ya. Shteinshneider、G. I. Nikishin
DOI:10.1007/bf00953473
日期:1983.4
PANEK, JAMES S.;SPARKS, MICHELLE A., TETRAHEDRON LETT., 28,(1987) N 40, 4649-4652
作者:PANEK, JAMES S.、SPARKS, MICHELLE A.
DOI:——
日期:——
Development of a Method for the Reductive Cyclization of Enones by a Titanium Catalyst
作者:Natasha M. Kablaoui、Stephen L. Buchwald
DOI:10.1021/ja954192n
日期:1996.1.1
which bis(trimethylphosphine)titanocene is used to catalyze the reductive cyclization of enones to cyclopentanols via a metallacyclic intermediate has been developed. The key step in the process is the cleavage of the titanium−oxygen bond in the metallacycle by a silane to regenerate the catalyst. Mechanistic aspects of the reaction are discussed and the diastereoselectivity of the transformation is studied
Fluoride ion mediated conjugate addition reactions of 1-acyloxy-2-propenyltrimethylsilane. Synthesis of 3-(1-acyloxy-2-propenyl)alkanones.
作者:James S. Panek、Michelle A. Sparks
DOI:10.1016/s0040-4039(00)96587-0
日期:1987.1
The reaction of 1-acyloxy-2-propenyltrimethylsilane (1) with α, β-unsaturated ketones in the presence of tetra-n-butylammonium fluoride has been investigated. In all cases the reaction was regiospecific resulting in the conjugate addition of a 1-acyloxy-2-propenyl function.