Pd(II)-Catalyzed Coupling-Cyclization of 1,2-Allenyl Phosphonic Acid Monoesters with Allylic Halides and Their Application to the Synthesis of 1,3-Dihydro[2,1]benzoxaphosphole 1-Oxides
作者:Shengming Ma、Fei Yu、Jinbo Zhao
DOI:10.1055/s-2007-967973
日期:——
coupling-cyclization of monoesters of 1,2-allenyl phosphonic acids with allylic halides was studied. 4-Allyl-2,5-dihydro[1,2]oxaphosphole 2-oxides were smoothly afforded. Multi substituted 1-ethoxy-1,3-dihydro[2,1]benzoxaphosphole 1-oxides were prepared from 3,4-diallyl-2,5-dihydro[1,2]oxaphosphole 2-oxides by a one-pot tandem reaction.
研究了钯催化的 1,2-烯丙基膦酸单酯与烯丙基卤化物的偶联-环化反应。4-Allyl-2,5-dihydro[1,2]oxaphosphole 2-oxides 顺利得到。多取代的 1-ethoxy-1,3-dihydro[2,1]benzoxaphosphole 1-oxides 由 3,4-diallyl-2,5-dihydro[1,2]oxaphosphole 2-oxides 通过一锅串联反应制备.