Photoinduced selective hydrophosphinylation of allylic compounds with diphenylphosphine oxide leading to γ-functionalized P-ligand precursors
作者:Dat Phuc Tran、Yuki Sato、Yuki Yamamoto、Shin-ichi Kawaguchi、Shintaro Kodama、Akihiro Nomoto、Akiya Ogawa
DOI:10.1007/s11164-021-04433-7
日期:2021.7
addition of diphenylphosphine oxide (Ph2P(O)H) to allylic compounds under photoirradiation. The photoinduced addition proceeds regioselectively in an anti-Markovnikov manner, and phosphines having hydroxy, alkoxy, aryloxy, acyloxy, and thio groups at the γ-position can be prepared by simple operation. Interestingly, novel continuous addition of Ph2P(O)H to two molecules of allylic ethers and related compounds
通过在光辐射下将二苯基膦氧化物(Ph 2 P(O)H)自由基加成到烯丙基化合物上,可以方便地合成一系列有望作为γ-官能化膦配体前体的双官能膦化合物。光诱导的加成以反马尔科夫尼科夫方式区域选择性地进行,并且可以通过简单的操作来制备在γ-位具有羟基,烷氧基,芳氧基,酰氧基和硫基的膦。有趣的是,虽然产量适中,但仍观察到将Ph 2 P(O)H连续新颖地添加到两个分子的烯丙基醚和相关化合物中。详细讨论了烯丙基取代基对自由基加成的取代基和空间效应。