Preparation of 1,2,3-Naphthalenetriamine, 1,2,5,6- and 1,2,7,8-Naphthalenetetramine, and 5,6,7,8-Quinolinetetramine and -Isoquinolinetetramine by Reduction of the Fused 1,2,5-Thiadiazole Ring
作者:Shuntaro Mataka、Youji Ikezaki、Kazufumi Takahashi、Akiyoshi Tori-i、Masashi Tashiro
DOI:10.1246/bcsj.65.2221
日期:1992.8
by-product in the reduction of 1a. The expected 1,2,3,4-naphthalenetetramine (4c) was not obtained in the reduction of 1c at room temperature and the 1,2,3-triamine 8 was formed in 27% yield. The intermediary formation of 4c was confirmed by acetylating the crude reduction mixture of 1c, giving tetraacetyl derivative 11. The reduction of naphthotris[1,2,5]thiadiazole 3 afforded 4,5-diamine 16 in 44% yield
萘 1a 和 1b、喹啉 2a 和异喹啉 2b 的两个稠合 1,2,5-噻二唑环在回流的二恶烷中用锡和浓盐酸还原,得到预期的 1,2,5,6-萘四胺 (4a ) 和 1,2,7,8-四胺衍生物 4b、5,6,7,8-喹啉四胺 (15a) 和异喹啉类似物 15b,产率适中。部分还原的二胺 5 作为 1a 还原的副产物形成。在室温下还原 1c 时未获得预期的 1,2,3,4-萘四胺 (4c),生成的 1,2,3-三胺 8 产率为 27%。通过乙酰化 1c 的粗还原混合物,得到四乙酰基衍生物 11,证实了 4c 的中间形成。萘并 [1,2,5] 噻二唑 3 的还原得到 4,5-二胺 16,产率为 44%。多胺 4a-b、8、15a-b 和 16,