One-pot synthesis of mixed (Z)-1,2-bis(organylchalcogene)-1-alkenes precursors of the novel β-organylthio vinyllithium intermediates

被引:5
作者
Dabdoub, Miguel J. [1 ]
Dabdoub, Vania B. [1 ]
Pereira, Marco A. [1 ]
Baroni, Adriano C. M. [2 ]
Marques, Francisco A. [3 ]
de Oliveira, Paulo R. [4 ]
Guerrero, Palimecio G., Jr. [4 ]
机构
[1] Univ Sao Paulo, Lab Compostos Organocalcogenios, Ribeirao Preto, SP, Brazil
[2] Univ Fed Mato Grosso do Sul, UFMS, Dept Farm Bioquim, Campo Grande, MS, Brazil
[3] Univ Fed Parana, UFPR, Dept Quim, BR-80060000 Curitiba, Parana, Brazil
[4] Univ Tecnol Fed Parana, UTFPR, Lab Sintese Organ & Produtos Nat, Dept Quim & Biol, Curitiba, Parana, Brazil
关键词
Hydrochalcogenation; Transmetallation; Thioacetylenes; beta-Organylthio vinyllithium; STEREOSELECTIVE-SYNTHESIS; VINYLIC TELLURIDES; REGIOSELECTIVE-SYNTHESIS; VERSATILE GENERATION; TE/LI EXCHANGE; HIGHLY REGIO; HYDROZIRCONATION; HYDROALUMINATION; SELENIDES; SULFIDES;
D O I
10.1016/j.tetlet.2010.07.112
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
One-pot hydrochalcogenation of 1-phenylthioacetylenes using organylselenolate and organyltellurolate anions generated by the insertions of selenium and tellurium in n-organyl lithium produced (Z)-1,2-bis(organylchalcogene)-1-alkenes. The chemical reactivity of these mixed 1,2-bis(organylchalcogene)-1-alkenes was studied by Te/Li and Se/Li stereoretentive exchanges carried out with n-butyl lithium, furnishing the new intermediate species (Z)-beta-organylthio vinyllithium anions, which were trapped with aldehydes, to give the (Z)-3-hydroxy vinyl thioethers with total control of the regio- and stereochemistry. (c) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:5141 / 5145
页数:5
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