Reactions of 5-cyano-1,4,6,9-trioxathia-5-phosphaspiro[4,4]nonanes with compounds containing a labile hydrogen atom
摘要:
All the investigated reactions of 5-cyano-1,4,6,9-trioxathia-5-phosphaspiro[4,4]nonanes with compounds containing a labile hydrogen atom proceed with the loss of HCN, predominant opening of the oxathiophospholane ring, and formation of 2-oxo-1,3,2-dioxaphospholane derivatives.
Transformations of 2-(2-thiocyanatoalkoxy)-1,3,2-dioxaphospholanes
摘要:
In contrast to the case of 2-(2-haloalkoxy)-1,3,2-dioxaphospholanes, the coordination of the phosphorus atom in analogous esters with an SCN group is altered under mild conditions involving the sulfur atom with formation of spirophosphoranes with a 1,3,2-oxathiaphospholane fragment.