Anal. Calcd. for C13H1403: C, 71.54; H, 6.47. Found: C, 71.03; 13, 6.11. Rearrangement of the Above Dienone-Lactone (IV) in Acetic Anh;dride.-This reaction was carried out under the customary conditions.3 IV (0.16 g.) wa8 dissolved in acetic anhydride (1 cc.) containing a trace of concentrated sulfuric acid and kept at room temperature for 6 hr. The reaction ... (12) Ref. 7, p. 186. (13) K. Yamakawa, J . Org. Chsm., 24, 897 (1959). ... Alkanesulfonates and Hydroxyalkane- ...