Synthesis and Properties of Cyclohepta[<i>hi</i>]pyrrolo[2,1,5-<i>cd</i>]indolizines
作者:Michihiko Noguchi、Ryoichi Tamai、Noriyuki Tanigawa、Hiroyuki Okumura、Shoji Kajigaeshi
DOI:10.1246/bcsj.60.969
日期:1987.3
5-bromo-cyclohepta[hi]pyrrolo[2,1,5-cd]indolizines. The dehydrobromination of 4 with DBU afforded cyclohepta[hi]pyrrolo[2,1,5-cd]indolizines in good yields. The characteristic electronic features of these cycloheptapyrroloindolizines are discussed on the basis of the MO calculations and the spectroscopic properties.
4,5,6,7-四氢环庚并[hi]吡咯并[2,1,5-cd]indolizines的亚甲基部分用NBS氧化得到5-溴-6,7-二氢-(4)和5-溴-环庚烷[hi]吡咯并[2,1,5-cd]吲哚嗪。4 与 DBU 的脱溴化氢以良好的产率得到环庚 [hi] 吡咯并 [2,1,5-cd] 吲哚嗪。在 MO 计算和光谱性质的基础上讨论了这些环庚吡咯并吲哚嗪的特征电子特征。