Mild Protocols for Generating Molecular Complexity: A Comparative Study of Hetero-Domino Reactions Based on the Oxidant and the Substitution Pattern
作者:José I. Candela Lena、Elena M. Sánchez Fernández、Alwar Ramani、Nicolas Birlirakis、Alejandro F. Barrero、Siméon Arseniyadis
DOI:10.1002/ejoc.200400549
日期:2005.2
A bicyclic unsaturated 1,2-diol framework was found to undergo an interesting set of domino reactions on treatment with oxidants. One-pot syntheses of seven-membered-ringcontaining frameworks were achieved by a Pb(OAc)4-mediated domino process, while with other oxidants investigated, such as Mn(OAc)3, Dess–Martin periodinane, PhI(OAc)2, Ph3Bi(CO)3, NaIO4, and NaBiO3, the domino process was interrupted
发现双环不饱和 1,2-二醇骨架在用氧化剂处理时会发生一组有趣的多米诺骨牌反应。通过 Pb(OAc)4 介导的多米诺过程实现了含七元环骨架的一锅法合成,同时研究了其他氧化剂,如 Mn(OAc)3、Dess-Martin periodinane、PhI(OAc)2、 Ph3Bi(CO)3、NaIO4 和 NaBiO3,多米诺骨牌过程中途中断。最后,四丙基过钌酸铵 (TPAP-NMO)、Pd(OAc)2、重铬酸吡啶鎓 (PDC) 和氯铬酸吡啶鎓 (PCC) 仅产生烯丙基氧化和进一步的二酮形成,而没有任何引发多米诺骨牌所需的键断裂