T. Kawashima et al., SYNTHESIS, STRUCTURE, AND THERMOLYSIS OF A 3-METHOXYCARBONYL-1,2-LAMBDA(5)-OXAPHOSPHETANE, Angewandte Chemie, International Edition in English, 32(6), 1993, pp. 869-870
About 22000 times faster than the decomposition of 1, 2 decomposes to
form the corresponding olefin and cyclic phosphinate [Eq. (a)]; a rema
rkable solvent effect is observed for the reaction of 2. Lithiation an
d subsequent methoxycarbonylation of 1 provided colorless needles of 2
.