The title compounds 14–16 were obtained via an intramolecular Mannich condensation by treating 11–13 with CH2O at RT. The unsaturated ketones 14 and 15 were reduced to the allylic alcohols 18 and 19 respectively. Ring cleavage of compound 18 on treatment with 2N HCl gave the substituted aminopropanol 20. The allylic alcohols 18 and 19 were hydrogenated to 22 and 23 respectively. With CH2O, the amino-alcohol
通过分子内曼尼希缩合反应,通过在室温下用CH 2 O处理11-13来获得标题化合物14-16。不饱和酮14和15分别还原为烯丙基醇18和19。用2N HCl处理的化合物18的环裂解得到取代的
氨基
丙醇20。
烯丙醇18和19分别被氢化成22和23。与CH 2 O一起,
氨基醇23得到亚甲基-
萘恶唑啉24,而在多
磷酸(
PPA)中加热得到22和23,分别得到
萘并二氮杂卓25和26。对于
有机锂化合物,不饱和酮14和16产生了季
铵基
烯丙醇27-29,将其氢化并脱
水成烯烃36-40;它们通过分子内烷基化环化成
甲烷二苯并-八氢环辛基
吡啶41-43。在
PPA中加热后,
烯丙醇29转化为
萘并pine庚因44。用CH 2 O,
萘酚49得到naphthoxazocine 50中,与螺
萘吡咯烷酮平衡51在溶液中。最后,在CH 2 O的存在下,
萘酞平57提供了
甲醇-
萘萘醌58,其通过4阶段降解转化为苯并
异喹啉62。