Topochemical [2+2] Dimerization of Kinetically Stabilized 1-Phosphaallenes in the Solid State
Topochemical [2+2] Dimerization of Kinetically Stabilized 1-Phosphaallenes in the Solid State
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DOI：
10.1002/ejoc.200300471
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发表时间：
2003-12
影响因子：
2.8
通讯作者：
S. Ito;S. Sekiguchi;M. Yoshifuji
中科院分区：
文献类型：
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作者：
S. Ito;S. Sekiguchi;M. Yoshifuji
两个体积较大的1-磷杂环烯在固相中热分解得到二亚膦亚甲基环丁烷或2，4-二亚甲基-1，3-二磷酰环丁烷。[2+2]二聚反应的区域选择性很大程度上取决于1-磷杂环己烯的晶体结构，而反应路径似乎受2，4，6-三叔丁基苯基(MES*)的影响。该拓扑化学反应还受1-磷杂环烯骨架3-位取代基的控制。(Wiley-VCH Verlag GmbH&Co.KGaA，69451温海姆，德国，2003年)
The thermolysis of two bulky 1-phosphaallenes in the solid state afforded diphosphanylidenecyclobutane or 2,4-dimethylene-1,3-diphosphacyclobutane. The regioselectivity of the [2+2] dimerization depends largely on the crystal structure of the 1-phosphaallenes, and the reaction path seems to be affected by the presence of bulky 2,4,6-tri-tert-butylphenyl (Mes*) group. This topochemical reaction was also controlled by the substituents at the 3-position of the 1-phosphaallene skeleton. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)