Syntheses and properties of dichlorodimethyltetradehydro-trideca-,-pentadeca-, -heptadeca-, and -nonadeca-fulvene, and benzannelated pentadecafulvene derivatives
作者:J?ro Ojima、Kazunori Itagawa、Satoru Hamai、Tetsuya Nakada、Shigeyasu Kuroda
DOI:10.1039/p19830002997
日期:——
these fulvenes are atropic. Syntheses of benzannelated derivatives of (19), i.e. 7-dichloromethylene-13-methyl-14,15,16,17-tetradehydrobenzocyclopentadecene (28), 9-dichloromethylene-13-methyl-14,15,16,17-tetradehydrobenzocyclopentadecene (29), and 7-dichloromethylene-16,17,18,19-tetradehydrodibenzo[a,g]cyclopentadecene (30) are also described. The influence of the dichloro substitution at the exocyclic
13-二氯亚甲基-4,9-二甲基-5,6,7,8-四氢十六碳烯(18),15-二氯亚甲基-4,9-二甲基-5,6,7,8-四氢环十五碳烯(19),17-描述了二氯亚甲基-6,11-二甲基-7,8,9,10-四氢环十七碳烯(20)和19-二氯亚甲基-6,11-二甲基-7,8,9,10-四氢环庚二烯(21)。对1 H nmr光谱的检查表明所有这些富通都是各向异性的。(19)的苯甲酰化衍生物的合成,即7-二氯亚甲基-13-甲基-14,15,16,17-四氢苯并环十五碳烯(28),9-二氯亚甲基-13-甲基-14,15,16,17-四氢苯并环戊碳五烯(29 )和7-二氯亚甲基-16,17,18,19-四氢二苯并[ a,g还描述了环十五碳烯(30)。基于这些富烯的1 H nmr和uv光谱以及相应的二苯取代衍生物的1 H nmr和uv光谱,讨论了富烯的二环取代在富烯的环外键上的影响以及苯甲酰化对四氢脱氢五烯富烯的结构的影响。