... A NOVEL CROSS ALDOL TYPE REACTION Mitsuru TAKAHASHI, Hiroharu SUZUKI,* Yoshihiko MORO-OKA,* and Tsuneo IKAWA Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 227 1, 3-0- to C-alkyl migration of acyclic 1-alkenyl alkyl acetals ... [Scheme] Page 2. 1436 Chemistry Letters, 1981 Alkyl allyl acetals (3a-3h) were easily prepared from 1-alkenyl alkyl ethers ...