Synthesis and Properties of Four-Membered Phosphorus Heterocycles-2-Fluoro-1,2λ<sup>5</sup>-Oxaphosphetanes
作者:Anastasia O. Kolodiazhna、Oleg I. Kolodiazhnyi
DOI:10.1080/10426507.2015.1054485
日期:2015.12.2
GRAPHICAL ABSTRACT Abstract The preparation of four-memberedphosphorus(V)-heterocycles, 2-fluoro-1,2λ5-oxaphosphetanes, by reaction of P-fluoroylides with carbonyl compounds is described. The reaction is stereoselective and leads preferentially to the formation of threo-1,2λ5-oxaphosphetanes. Oxaphosphetanes were isolated as individual compounds and their structures were confirmed by 1Н, 13C, and
Transformation des 2-fluoro-1,2λ5-oxaphosphetanes en allylphosphonates
作者:Oleg I. Kolodiazhnyi
DOI:10.1016/s0040-4039(00)82148-6
日期:——
P-Fluoro-ylids adds aldehydes and ketones to produce 2-fluoro oxaphosphetanes that convert, depending upon the nature of substituents in C-3 and C-4 a7toms into allylphosphonates or vinylphosphonates.