Preparation of New Nitrogen-Bridged Heterocycles. 45. Smooth Hydrolysis of 6-Membered Heterocyclic 2-Imines with Partial Aromaticity.
作者:Akikazu KAKEHI、Suketaka ITO、Hiroyuki SUGA、Satoshi TAKANO、Kazuyuki HIRATA
DOI:10.1248/cpb.46.1632
日期:——
The treatment of 2H-pyrano[2, 3-b]indolizin-2-imines and 2H-thiino[3, 2-a]indolizin-2-imines with acetic acid at reflux temperature smoothy afforded the corresponding 2H-pyrano[2, 3-b]indolizin-2-one and 2H-thiino[3, 2a]indolizin-2-one derivatives in moderate to good yields. An X-ray analysis of a 2H-thiino[3, 2-a]indolizin-2-one derivative was also performed.
在回流温度下用乙酸处理2H-吡喃并[2,3-b]吲嗪-2-亚胺和2H-巯基并[3,2-a]吲嗪-2-亚胺,可得到相应的2H-吡喃并[2,3-b]吲嗪-2-酮和2H-巯基并[3,2-a]吲嗪-2-酮衍生物,产率中等至良好。还对2H-巯基并[3,2-a]吲嗪-2-酮衍生物进行了X射线分析。