Selective site controlled nucleophilic attacks in 5-membered ring phosphate esters: unusual C–O vs. common P–O bond cleavage
作者:Nissan Ashkenazi、Sanjio S. Zade、Yoffi Segall、Yishai Karton、Michael Bendikov
DOI:10.1039/b512117e
日期:——
Clean endocyclic C-O bond cleavage has been achieved in the reactions of 5-membered phosphate triesters with various nucleophiles.
在五元磷酸三酯与各种亲核试剂的反应中,已实现了干净的环内CO键裂解。
Ambident Electrophilicity of 5-Membered Ring Phosphate Triesters
作者:Nissan Ashkenazi、Yoffi Segall、Yishai Karton、Sanjio S. Zade、Michael Bendikov
DOI:10.1080/10426500701735452
日期:2008.1.14
The reactions of 2-alkoxy-1,3,2-dioxaphospholane 2-oxide with various nucleophiles were studied both experimentally and theoretically. These studies show that 5-membered ring phosphate triesters act as ambident electrophiles: hard and bulky nucleophiles attack at the phosphorus while soft nucleophiles attack at the ring carbon.