1,4,4a,10b-Tetrahydro-<i>N,N</i>-dimethyl-4-phenanthridinamines and 1,4,4a,5,6,10b-hexahydro-<i>N,N</i>-dimethyl-4-phenanthridinamines
作者:George Bobowski、Barbara West、Diana Omecinsky
DOI:10.1002/jhet.5570290106
日期:1992.1
5-aryl-N,N-dimethyl-6-nitro-2-cyclohexen-1-amines 7. Reduction of 7 with zinc in acetic acid gave the diamino derivatives 8. Schotten-Baumann acylation of 8 gave amides 9. Treatment of 8 with alkyl isocyanates gave the aminourea derivatives 10. Bischler-Napieralski cyclodehydration procudure of 9 and 10 gave 1,4,4a,10b-tetrahydrophenanthridinamines 3 and N6-alkyl-1,4,4a,10b-tetrahydro-N4,N4-dimethyl-4
描述了制备标题化合物的合成方法。将β-硝基苯乙烯衍生物5的Diels-Alder环加成到N,N-二甲基-1,3-丁二烯-1-胺6中,得到5-芳基-N,N-二甲基-6-硝基-2-环己烯-1-胺7.用锌在乙酸中还原7得二氨基衍生物8。Schotten-Baumann酰化8得到酰胺9。用烷基异氰酸酯处理8得到氨基脲衍生物10。的施勒-纳皮耶拉尔斯基环化脱水procudure 9和10,得到亚甲基-1,4,4a,10B-tetrahydrophenanthridinamines 3和N 6-烷基-1,4,4a,10b-四氢-N 4,N 4-二甲基-4,6-菲啶二胺11。在共沸条件下,二胺8与芳基醛的缩合得到亚胺12,该亚胺12在用酸处理时产生6-芳基-1,4,4a,5,6,10b-六氢-N,N-二甲基-4-菲啶胺4。这些材料的立体化学由质子磁共振研究确定。