M. Kunishima et al., ALKYLIDENECARBENES FROM 1,1-DIHALOGENOALKENES WITH SAMARIUM DIIODIDE - MILD AND EFFICIENT METHOD FOR THE SYNTHESIS OF CYCLOPENTENES, Tetrahedron letters, 35(39), 1994, pp. 7253-7254
A new mild method for construction of cyclopentenes via 1,5-C-H insert
ion of alkylidenecarbenes by the reaction of 2,2-dialkyl-1,1-dihalogen
oalkenes with Sml(2) in benzene-hexamethylphosphoric triamide (HMPA) w
as developed.