A convenient route to alkynes via phase transfer catalysis: applications of phase transfer catalysis, part 19

Dehmlow EV, Lissel M. A convenient route to alkynes via phase transfer catalysis: applications of phase transfer catalysis, part 19. Tetrahedron. 1981;37(9):1653-1658.High yield, rapid formations of alkynes from vicdibromides are possible using powered potassium hydroxide and catalytic amounts of lipophilic phase transfer catalysts. Reasons are given why molar amounts of expensive catalysts were necessary in earlier procedures