Silveira Claudio C, Braga Antonio L, Vieira Adriano S, Zeni Gilson
Departamento de Química, Universidade Federal de Santa Maria, C. P. 5001, CEP 97105-900, RS, Brazil.
J Org Chem. 2003 Jan 24;68(2):662-5. doi: 10.1021/jo0261707.
(Z,Z)- and (E,E)-divinylic selenides and telurides undergo direct coupling with terminal alkynes in the presence of a nickel/CuI catalyst at room temperature to give (Z)- and (E)-enyne systems in good yields and with complete retention of configuration.
(Z,Z)-和(E,E)-二乙烯基硒化物和碲化物在镍/碘化亚铜催化剂存在下于室温下与末端炔烃发生直接偶联反应,以良好的产率生成(Z)-和(E)-烯炔体系,且构型完全保持。