Toluene-4-sulfonic acid (1R,2R,4aS)-1-benzyloxymethyl-2-hydroxy-1-methyl-1,3,4,5,6,7-hexahydro-2H-naphthalen-4a-ylmethyl ester 在
aluminum oxide 作用下,
以
苯 为溶剂,
反应 15.0h,
以22%的产率得到(1S,7R,8R)-7-Benzyloxymethyl-7-methyl-9-oxa-tricyclo[6.2.2.0
1,6]dodec-5-ene