(1954). Chem. Abatr., 49, 3076 (1955). atmosphere of nitrogen at-loo, using lithium (2.0 g., 0.288 g.-atom) and butyl bromide (16.0 g., 0.117 mole). The solution was allowed to warm to 0" and freshly distilled n-dodecyl vinyl sulfidelo (8.35 g., 0.0367 mole, bp 113"/0.8 mm., nz 6~ 1.4707) was added slowly with stirring. Stirring waa continued at 0" for 3 hr.; the solution waa poured onto ice, and the hydrolysis mixture was extracted with ether which was then ...