Synthesis of 2,6-cis-disubstituted 4-methylenetetrahydropyrans by oxy-Michael addition
摘要:
The combination of an 'ene' reaction between a 2-(2-trialkylsilyloxyalkyl)prop-2-enyl(trimethyl)silane and an alk-1-yn-3-one mediated by zinc(II) iodide, and an intramolecular oxy-Michael reaction, provides an efficient synthesis of cis-2,6-disubstituted 4-methylenetetrahydropyrans of interest in the context of a synthesis of bryostatins. The stereoselective formation of (E)-vinylsilanes in the 'ene' reaction is of interest. (C) 2011 Elsevier Ltd. All rights reserved.
TROST, B. M.;BONK, P. J., J. AMER. CHEM. SOC., 1985, 107, N 6, 1778-1781
作者:TROST, B. M.、BONK, P. J.
DOI:——
日期:——
Synthesis of 2,6-cis-disubstituted 4-methylenetetrahydropyrans by oxy-Michael addition
作者:Duncan Gill、Nicholas H. Taylor、Eric J. Thomas
DOI:10.1016/j.tet.2011.03.113
日期:2011.7
The combination of an 'ene' reaction between a 2-(2-trialkylsilyloxyalkyl)prop-2-enyl(trimethyl)silane and an alk-1-yn-3-one mediated by zinc(II) iodide, and an intramolecular oxy-Michael reaction, provides an efficient synthesis of cis-2,6-disubstituted 4-methylenetetrahydropyrans of interest in the context of a synthesis of bryostatins. The stereoselective formation of (E)-vinylsilanes in the 'ene' reaction is of interest. (C) 2011 Elsevier Ltd. All rights reserved.
Diastereoselective [3 + 2]-type heterocyclic synthesis via [2-(acetoxymethyl)-3-allyl]tri-n-butylstannane
作者:Barry M. Trost、Peter J. Bonk
DOI:10.1021/ja00292a064
日期:1985.3
Synthese de R-2 methylene-4 perhydrofurannes a partir de RCHO et du stannane du titre (A); synthese de R-2 methylene-4 R'-1 pyrrolidines a partir de RCH=NR' et de A
合成这些 de R-2 亚甲基-4 全氢呋喃 a partir de RCHO et du stannane du titre (A); 合成 de R-2 亚甲基-4 R'-1 pyrrolidines a partir de RCH=NR' et de A