Iodine‐induced E/Z isomerization of sterically protected 3,4‐diphosphinidenecyclobutenes and 1‐phosphaethenes
Iodine‐induced E/Z isomerization of sterically protected 3,4‐diphosphinidenecyclobutenes and 1‐phosphaethenes
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碘诱导空间保护的 3,4-二膦亚基环丁烯和 1-磷乙烯基的 E/Z 异构化
DOI：
10.1002/hc.520050521
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发表时间：
1994
影响因子：
0.3
通讯作者：
M. Yoshifuji
中科院分区：
文献类型：
--
作者：
Kozo Toyota;Katsuya Tashiro;T. Abe;M. Yoshifuji
在催化量的碘存在下，空间保护的(E,E)-3,4-双(2,4,6-三叔丁基苯基次膦基)二烷基环丁烯异构化为相应的(E,Z)衍生物。在(E)-和(Z)-2-苯基-1-(2,4,6-三叔丁基苯基)-1-磷乙烯基的情况下观察到类似的碘诱导的异构化。
Sterically protected (E,E)-3,4-bis(2,4,6-tri-t-butylphenylphosphinidene)dialkylcyclobutenes were isomerized to the corresponding (E,Z) derivatives in the presence of catalytic amounts of iodine. Similar iodine-induced isomerizations were observed in the case of (E)- and (Z)-2-phenyl-1-(2,4,6-tri-t-butylphenyl)-1-phosphaethenes.