作者:Gregor Kiefer、Jesus Ruiz、Euro Solari、Gerhard Hilt、Kay Severin
DOI:10.1002/ejoc.201101263
日期:2012.1
Sequential enyne cross-metathesis reactions of arylalkynes with ethylene followed by atom transfer radical addition (ATRA) with ethyl dichloroacetate or dichloroacetonitrile provide 1,5-dichloropent-2-ene derivatives. The second-generation Grubbs alkylidene complex [RuCl2(=CHPh)(PCy3)(NHC)] [NHC = 1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene] is used as the catalyst precursor for both reactions
芳基炔烃与乙烯的连续烯炔交叉复分解反应,然后是原子转移自由基加成 (ATRA) 与二氯乙酸乙酯或二氯乙腈,提供 1,5-二氯戊-2-烯衍生物。第二代 Grubbs 亚烷基配合物 [RuCl2 (= CHPh) (PCy3) (NHC)] [NHC = 1,3-双 (2,4,6-三甲基苯基) -2-咪唑烷叉] 作为催化剂前体反应。初步结果表明,反应产物可以通过镁或锰脱氯转化为乙烯基环丙烷。