Role of the polymer backbone on the reactivity of polymer-supported (dichloroiodo)benzene
作者:Boris Šket、Marko Zupan、Pavle Zupet
DOI:10.1016/s0040-4020(01)91811-3
日期:1984.1
chlorine addition with polyaryliododichloride to cis or trans-1-phenylpropene is very similar to that observed in the reaction with Cl2 under ionic conditions, and its reactivity differs markedly from (dichloroiodo)benzene, which reacts via radical intermediates. Similar studies with 1-phenylalkynes and norbornene are described.
-用Cl 2对碘化的交联聚苯乙烯进行氯化,得到每克树脂含1.1毫摩尔活性氯的聚芳基二氯化物,而用XeF 2对相同的碘化树脂进行氟化,得到每克树脂含1.05毫摩尔活性氟的聚芳基二氟化物。两种树脂均与1,1-二苯乙烯反应,与聚芳基二氟化物反应,得到重排的1,1-二氟-1,2-二苯乙烷,而聚芳基二氯化物,得到1,2-二氯-1,1-二苯乙烷和1,1-二苯基-2-氯乙烯。用聚芳基二氯向顺式或反式-1-苯基丙烯中加氯的立体化学与在与Cl 2反应中观察到的立体化学非常相似。在离子条件下,其反应性与(dichloroiodo)苯显着不同,后者通过自由基中间体反应。描述了对1-苯基炔烃和降冰片烯的类似研究。