An efficient synthetic method of 1-(2,4,6-tri-t-butylphenyl)-3-phenyl-1-phosphaallenes [Mes*P=C=CR-Ph; R = H, SiMe3] from dibromophosphaethene [Mes*P=CBr2] (Mes*=2,4,6-t-Bu3C6H2)
An efficient synthetic method of 1-(2,4,6-tri-t-butylphenyl)-3-phenyl-1-phosphaallenes [Mes*P=C=CR-Ph; R = H, SiMe3] from dibromophosphaethene [Mes*P=CBr2] (Mes*=2,4,6-t-Bu3C6H2)
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DOI：
10.1246/bcsj.78.1142
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发表时间：
2005-06-15
影响因子：
4
通讯作者：
Yoshifuji, M
中科院分区：
文献类型：
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作者：
Ito, S;Sekiguchi, S;Yoshifuji, M
2-溴-3-苯基-1-（2，4，6-三叔丁基苯基）-3-三甲基硅氧基-1-磷杂-1-丙烯与叔丁基锂和氯三甲基硅烷反应，通过三甲基硅氧化锂或六甲基二硅氧烷的消除，得到3-苯基-1-（2，4，6-三叔丁基苯基）-1-磷杂丙二烯和/或3-苯基-3-三甲基硅基-1-（2，4，6-三叔丁基苯基）-1-磷杂丙二烯。后者磷丙二烯的分子结构通过X射线晶体学证实。
2-Bromo-3-phenyl-1-(2,4,6-tri-t-butylphenyl)-3-trimethylsiloxy-1-phospha-1-propene reacted with t-butyllithium and chlorotrimethylsilane to afford 3-phenyl-1-(2,4,6-tri-t-butylphenyl)-1-phosphaallene and/or 3-phenyl-3-trimethylsilyl-1-(2,4,6-tri-t-butylphenyl)-1-phosphaallene through the elimination of lithium trimethylsiloxide or hexamethyldisiloxane. The molecular structure of the latter phosphaallene was confirmed by X-ray crystallography.