Syntheses of 6,6a,7,8,9,10,10a,11-octahydro-11-oxodibenz(b,e)oxepins and 6,6a,7,8,9,10,10a,11-octahydro-11-oxodibenzo(b,e)thiepins.
作者:MIKIO KUROKAWA、KOJI YOSHIDA、YASUTAKA NAGAI、HITOSHI UNO
DOI:10.1248/cpb.31.4312
日期:——
Two new partially saturated tricyclic ring systems, 6, 6a, 7, 8, 9, 10, 10a, 11-octahydro-11-oxodibenz [b, e] oxepins (3a and 3b), and -thiepins (4a and 4b) were synthesized. Compounds 4a and 4b were desulfurized to give a pair of isomeric 2-methylbenzoylcyclohexanes (10a and 10b). Deuterated 4a and 4b (11a and 11b) were prepared starting from butadiene-d6 (12). The stereochemical features of 3a (trans), 3b (cis), 4a (trans) and 4b (cis) are compared with those of 10a, 10b, 11a and 11b on the basis of proton nuclear magnetic resonance data.
两个新的部分饱和三环系统,6, 6a, 7, 8, 9, 10, 10a, 11-八氢-11-氧代二苯并 [b, e] 恶庚英 (3a 和 3b) 和 -噻庚英 (4a 和 4b)合成的。将化合物4a和4b脱硫,得到一对异构2-甲基苯甲酰基环己烷(10a和10b)。从丁二烯-d6 (12) 开始制备氘代 4a 和 4b (11a 和 11b)。根据质子核磁共振数据将3a(反式)、3b(顺式)、4a(反式)和4b(顺式)的立体化学特征与10a、10b、11a和11b的立体化学特征进行比较。