Aroylspirophosphoranes bearing two naphth-1,8-diyl-8-oxy groups: synthesis, crystal structure, and np(Oapical)→π∗(CO) charge transfer interaction
作者:Kazumasa Kajiyama、Sayaka Fujimori、Daisuke Yasuoka、Takeshi Otsuka、Takeshi Ken Miyamoto
DOI:10.1016/j.tet.2013.08.004
日期:2013.10
The reactions of aroyl chlorides with the lithium phosphoranide generated from bis(naphth-1,8-diyl-8-oxy)phosphorane 1 afforded aroylspirophosphoranes 3a–f. The p-anisoyl- and p-tert-butylbenzoylphosphoranes 3a and 3b bearing an electron-donating aryl group were stable to moisture on silicagel. The crystal structures of p-anisoyl-, p-tert-butylbenzoyl-, benzoyl-, and p-fluorobenzoylphosphorane (3a