Synthesis of Fused Thioxo-Pyran Systems From α-Methylene Carbonyl Compounds and Bismethylene-1,3-dithietane
作者:Wafaa M. Abdou、Yehia O. Elkhoshnieh
DOI:10.1080/00397919908086427
日期:1999.8.1
Abstract A number of [2, 1-b] fused phosphono substituted-thioxo-pyrans 7,10,13 and 18 have been regioselectively synthesised from the reaction of the corresponding α-methylene carbonyl compound with phosphenato-substituted 1,3-dithietane 1. Conversely, 2-thiohydantoin 14 reacts with 1 to afford the respective 4-substituted derivative 15.
摘要 通过相应的α-亚甲基羰基化合物与膦酰取代的 1,3-二硫杂环乙烷 1 反应,区域选择性地合成了许多 [2, 1-b] 稠合膦酰基取代的硫代吡喃 7,10,13 和 18。 . 相反,2-乙内酰脲 14 与 1 反应得到相应的 4-取代衍生物 15。