Reaction of Benzyltrimethylammonium Phenylenedioxy Tetrachlorophosphorate with Phenylacetylene and Propargyl Chloride
作者:Alfiya A. Shtyrlina、Vladimir F. Mironov、Elena N. Varaksina、Aleksander I. Konovalov
DOI:10.1080/10426500213423
日期:2002.8
the preferable formation (70–80%) of the substituted 2,7-dichloro-4-R-2-oxobenzo[e]-1,2-oxaphosphorines 4. The selective chlorination of the benzo-substituent meta to endocyclic oxygen of the phosphorine heterocycle takes place. As it has been shown earlier,1 the reaction of phosphorane 1 with PhC CH without salt 2 yields 2,6-dichloro-2-oxo-4-phenylbenzo[e]-1,2-oxaphosphorine, and the reaction with
苯二氧基三氯正膦 1 与苄基三甲基氯化铵 2 的相互作用产生六配位衍生物 3 (δP -97 ppm),它很容易与苯乙炔或炔丙基氯反应 (20°C, CH2Cl2) 并导致优选形成 (70-80%) 取代2,7-二氯-4-R-2-氧代苯并[e]-1,2-氧杂磷 4. 发生磷杂环中苯并取代基环内氧的选择性氯化。如前所述,1 正膦 1 与无盐 2 的 PhC CH 反应生成 2,6-二氯-2-氧代-4-苯基苯并[e]-1,2-氧杂磷,与炔丙基氯反应生成2,8-dichloro2-oxo-4-chloromethylbenzo-[e]-1,2-oxaphosphorine。2-氯和2-羟基衍生物4、5的结构由1H、13C、