Ab. Charette et B. Cote, SYNTHESIS OF MONOPROTECTED 2-ALKYLIDENE-1,3-PROPANEDIOLS BY AN UNUSUAL SN2' MITSUNOBU REACTION, Tetrahedron letters, 34(43), 1993, pp. 6833-6836
A simple and efficient route to monoprotected E- and Z-2-alkylidene-1,
3-propanediols was developed. The key step involves an unusual regio-
and stereoselective SN2' Mitsunobu reaction of substituted 3-hydroxy-2
-methylenealkenoate.