Syntheses and Properties of α-Alkyl-Substituted Bisdehydroaza[14]annulenes and the Related Benzannelated Derivatives
作者:J\={u}ro Ojima、Yasuhiro Yagi、Emiko Ejiri、Shuichi Ishizaka、Tadahito Kato
DOI:10.1246/bcsj.59.1791
日期:1986.6
14-Ethoxy-2,5,10-trimethyl-6,8-bisdehydroaza[14]annulene, 14-ethoxy-2-ethyl-5,10-dimethyl-6,8-bisdehydroaza[14]annulene, 2-ethoxy-3,11-dimethyl-5,6-benzo-7,9-bisdehydroaza[14]annulene, and 2-ethoxy-1 1,14-dimethyl-5,6-benzo-7,9-bisdehydroaza[14]annulene were synthesized. Influence of α-alkyl substitution and benzannelation upon the skeleton of the bisdehydroaza[14]annulene ring system is discussed on the basis of 1H NMR and UV spectra of these azaannulenes and their α-alkyl unsubstituted ones.
14-乙氧基-2,5,10-三甲基-6,8-双脱氢氮杂[14]环庚烯、14-乙氧基-2-乙基-5,10-二甲基-6,8-双脱氢氮杂[14]环庚烯、2-乙氧基-3,11-二甲基-5,6-苯并-7,9-双脱氢氮杂[14]环庚烯和2-乙氧基-1 1,14-二甲基-5,6-苯并-7,9-双脱氢氮杂[14]环庚烯被合成。根据这些氮杂环庚烯及其α-烷基未取代的氮杂环庚烯的1H NMR和UV光谱,讨论了α-烷基取代和苯并环化对双脱氢氮杂[14]环庚烯骨架的影响。