Preparation of pyrrolo[3,2,1-<i>jk</i>]carbazole by nickel(0) mediated ring contraction of pyrrolo[3,2,1-<i>kl</i>]phenothiazine. Proton NMR and mass spectral studies
作者:Tomas Klingstedt、Anders Hallberg、Philip Dunbar、Arnold Martin
DOI:10.1002/jhet.5570220616
日期:1985.11
pyrrolo[3,2,1-kl]phenothiazine 2a with a 1:1 mixture of bis(1,5-cyclooctadiene) nickel(0) and 2,2′-bipyridyl. An unequivocal assignment of the 1H nmr spectrum of 1a was made by decoupling experiments and by comparison with the 1H nmr spectrum of 1,9-dideuteriopyrrolo[3,2,1-jk]carbazole 1b. Metastable ion studies, exact mass measurements and the dideuterioderivative 1b were utilized to investigate the
吡咯并[3,2,1- jk ]咔唑1a,以前未报道的16π电子母体化合物,是通过将吡咯并[3,2,1- kl ]吩噻嗪2a与bis(1)1:1混合物处理而合成的1,5-环辛二烯)镍(0)和2,2'-联吡啶基。所述的明确的分配1个的H NMR谱1A被去耦实验和通过与比较由1个1,9- dideuteriopyrrolo的H NMR谱[3,2,1 JK ]咔唑1b中。利用亚稳态离子研究,精确的质量测量和双氘代衍生物1b来研究电子撞击引起的1a碎片。