A New Preparative Route to Phosphaethynes from Dichlorophosphaethenes by Lithiation, Photoisomerization, and Re-lithiation Involving Migration
作者:Masaaki Yoshifuji、Hajime Kawanami、Yoshinori Kawai、Kozo Toyota、Masafumi Yasunami、Takashi Niitsu、Naoki Inamoto
DOI:10.1246/cl.1992.1053
日期:1992.6
2-(2,4,6-Tri-t-butylphenyl)-1-phosphaethyne was prepared from 2,2-dichloro-1-(2,4,6-tri-t-butylphenyl)-1-phosphaethene by lithiation of anti-chloro atom followed by hydrolysis, photoisomerization, and repeated lithiation involving migration. The present method was successfully applied to the preparation of 2-(2,4,6-tri-t-pentylphenyl)-1-phosphaethyne.
以 2,2-二氯-1-(2,4,6-三丁基苯基)-1-膦乙烯为原料,通过反氯原子的石碳酸化反应,然后进行水解、光异构化和涉及迁移的重复石碳酸化反应制备了 2-(2,4,6-三丁基苯基)-1-膦乙烯。该方法被成功应用于制备 2-(2,4,6-三戊基苯基)-1-膦乙烯。