作者:J. Rigaudy、P. Capdevielle
DOI:10.1016/0040-4020(77)80190-7
日期:1977.1
Dimerization of chloropolyphenylallenes 1a-c occurs via bisallyl diradicals 2a-c, the closure of which leads either to 1,2-dialkylidene cyclobutanes 8b,c, or to the dihydronaphthalenic compounds 3a-c which afford after elimination of HCl and cyclization the naphthocyclobutenes 5a-c. The latter, by opening and cyclization involving a further loss of HCl, are readily transformed in high yields into the
氯代聚苯丙二烯1a-c的二聚反应是通过双烯丙基二自由基2a-c进行的,其封闭导致1,2-二亚烷基环丁烷8b,c或二氢萘化合物3a-c,在除去HCl和环化后得到萘环丁烯5a -c。后者,通过打开和环化反应,涉及到另外的HCl损失,很容易以高收率转化为萘并烷7a-c。一些1,2-二亚烷基环丁烷8也可以通过热打开生成萘并烷7以生成双自由基2,然后进行环化。此多步骤过程为所谓的“鲁宾”反应(俗称的5、6、11、12-四苯基萘并苯)提供了一般性解释,该反应是从充当外来物前体的聚苯基炔丙基化合物开始向萘并苯合成的途径。