80738-00-7Relevant articles and documents
Ring expansion reaction of 2-vinyl-4-methylene-1,3-dioxolanes to 4,5-dihydro-3(2H)-oxepinones by Claisen rearrangement
Sugiyama, Jun-Ichi,Tanikawa, Kazuki,Okada, Takashi,Noguchi, Kouichi,Ueda, Mitsuru,Endo, Takeshi
, p. 3111 - 3114 (2007/10/02)
2-Styryl or 2-vinyl substituted 4-methylene-1,3-dioxolanes underwent the Claisen rearrangement to obtain 4,5-dihydro-3(2H)-oxepinones in good yield. The rate of reaction followed the decreasing order: 2-phenyl-2-styryl > 2-phenyl-2-vinyl > 2 tert-butyl-2-styryl > 2-styryl.