D. Grandjean et al., AN IMPROVED PROCEDURE FOR ALDEHYDE-TO-ALKYNE HOMOLOGATION VIA 1,1-DIBROMOALKENES - SYNTHESIS OF 1-BROMOALKYNES, Tetrahedron letters, 35(21), 1994, pp. 3529-3530
1,1-Dibromoalkenes, 1-bromoalkynes and alkynes could be obtained in ex
cellent yields by homologation of functionnalized aldehydes through a
modified Mc Kelvie-Corey procedure.