Oct., 1948 THE REACTION OF ALLYLSODIUM WITH 2-BROMOOCTANE ... 1-methylheptyl ether within the accuracy of our measurements. TABLE I A COMPARISON OF PHYSICAL CONSTANTS ... 4-Methyl-1-decene from Wurtz reaction 1.4241 0.7474 4-Methyl-1-decene from Grignard rc- action 1.4241 .7476 Allyl 1-methylheptyl ether 1.4270 .8015" 6 This value is for dm4. ... Experimental Cleavage of Diallyl Ether: (a) Vinylacetic Acid.- Sodium sand (5.8 g., 0.25 g. at.) was ...