... of previous attempts to prepare vinyllithium is given by D. Seyferth in “Vinyl Compounds of Metals,” in “Progress in Inorganic Chemistry.” Vol. ... After a small forerun, 23.4 g. (7470) of tri-n-butylvinyltin was collected at 80-83"(0.6 mm.), n% 1.4773; lit.15 ... (IS) American Cyanamid Co ...