6-hydroxy-1-methyl-4-methylen-2,3,3a,4,5,6,7,8-octahydroazulene 、
丙酰氯 在
ice 、 crude product 作用下,
以
吡啶 、
二氯甲烷 为溶剂,
反应 3.0h,
以there were obtained 3.15 g (96%) of pure 1-methyl-4-methylene-6-propionyloxy-2,3,3a,4,5,6,7,8-octahydroazulene的产率得到Propionic acid 3-methyl-8-methylene-1,2,4,5,6,7,8,8a-octahydro-azulen-6-yl ester