Syntheses and Properties of Two Ethoxytrimethylbisdehydroaza[16]annulenes and Ethoxytrimethylbisdehydroaza[18]annulene
作者:J\={u}ro Ojima、Yasuhiro Yagi、Sumio Manaka、Tetsuya Nakada、Yasunao Shiraiwa
DOI:10.1246/bcsj.59.1801
日期:1986.6
11 -trimethyl-7,9-bisdehydroaza[16]annulene, 2-ethoxy-6,11,16-trimethyl-7,9-bis-dehydroaza[16]annulene, and 18-ethoxy-2,7,12-trimethyl-8,10-bisdehydroaza[18]annulene are described. It was found that the molecular skeletons of these α- or β-methylated aza[16]- and -[18]annulene are less planar than those of α- or β-methyl unsubstituted aza[16]- and aza[18]annulene, from examination of their 1H NMR and
2-乙氧基-3,6,11-三甲基-7,9-双脱氢氮杂[16]环烯、2-乙氧基-6,11,16-三甲基-7,9-双-脱氢氮杂[16]环烯和18的合成描述了-乙氧基-2,7,12-三甲基-8,10-双脱氢氮杂[18]环烯。发现这些α-或β-甲基化氮杂[16]-和-[18]环烯的分子骨架比α-或β-甲基未取代氮杂[16]-和氮杂[18]环烯的分子骨架更不平坦,通过检查他们的 1H NMR 和电子光谱。