Dehydration of 15α-hydroxyhopane and of the 21αH-epimer gives the corresponding 13(14→15)abeo-hop-14(27)-enes together with alkenes which result from migration of the C-14 methyl group. Dehydration of 15β-hydroxyhopane and of the 21α-H-epimer is also accompanied by migration of the C-14 methyl group.
所述21αH差向异构体的15α-hydroxyhopane和脱
水,得到相应的13(14→15)的abeo- -hop-14(27)与来自C-14甲基的迁移而导致的烯烃一起-enes。15β-羟基
庚烷和21α-H-顶基的脱
水也伴随有C-14甲基的迁移。