A Novel Method for the Generation of Thial S-Sulfides from 2,4,6-Trisubstituted 5,6-Dihydro-1,3,5-dithiazines
作者:Yuji Takikawa、Takahiro Makabe、Naoyuki Hirose、Takamichi Hiratsuka、Ryuji Takoh、Kazuaki Shimada
DOI:10.1246/cl.1988.1517
日期:1988.9.5
Treatment of 2,4,6-trisubstituted 5,6-dihydro-1,3,5-dithiazines with NCS or NBS afforded highly reactive thial S-sulfides, which underwent dimerization to give the corresponding 1,2,4,5-tetrathianes. The products were also selectively converted into naturally-occurring cyclic polysulfides, 1,2,4-trithiolanes and 1,2,3,5,6-pentathiepanes, by treatment with Ph3P, KCN, or Na2S4.
用 NCS 或 NBS 处理 2,4,6-三取代的 5,6-二氢-1,3,5-二噻嗪可得到高活性的硫代 S 硫化物,这些硫化物经过二聚反应可得到相应的 1,2,4,5-四噻烷。这些产物经 Ph3P、KCN 或 Na2S4 处理后,还可选择性地转化为天然环状多硫化物、1,2,4-三硫环戊烷和 1,2,3,5,6-五硫环戊烷。