作者:John R Nicholson、Gurdial Singh、Kevin J McCullough、Richard H Wightman
DOI:10.1016/0040-4020(89)80121-8
日期:1989.1
diene gave rise to two cycloadducts 3,10-dioxo-5-ethoxycarbonyl-1-methoxy-10a-nitro-octahydroacridines which had arisen from addition from the exo and endo transistion states. The quinolones (4a,b) on reaction with Gessons diene (12) and the ketene acetals (15) and (16), afforded Michael adducts 2-[1,3-biscarboethoxy-1,2-dihydroquinolin-2-yl-4-hydroxy]-methyl-1-carboethoxy-4-methoxycyclohexa-1,3-diene (14a)
3-乙氧基羰基-4-1(H)-喹诺酮(2)和3-硝基-4-1(H)-喹诺酮(3)与多种氯甲酸酯反应生成N-酰基-3-乙氧基羰基-4- 1(H)-喹诺酮(4a-4d)和N-酰基-3-硝基-4-1(H)-喹诺酮(5a,b)。(4a,b,d)与1-甲氧基-3-(三甲基甲硅烷基氧基)-1,3-丁二烯(6)的反应得到相应的[4 + 2]环加合物,5,10a-二乙氧基羰基-3,10-二氧代- 1-甲氧基-八氢ac啶(7a)及其类似物(7b,d)。用上述二烯处理(5a,b)产生了两个环加合物3,10-二氧代-5-乙氧基羰基-1-甲氧基-10a-硝基八氢oct啶,它们是由外和内跨态加成而来的。喹诺酮类化合物(4a,b)与Gessons二烯(12)和乙烯酮缩醛(15)和(16)反应,得到迈克尔加成物2- [1,3-biscarboethoxy-1,2-二氢喹啉-2-基-4-羟基]-甲基-1-羰乙氧基-4-甲氧基环己-1