N-alkylation of amidothiophosphoryl compounds under phase-transfer catalysis conditions. Synthesis and properties of 1,3,2-thiazaphosphacyclanes
作者:O. I. Artyushin、E. V. Sharova、P. V. Petrovskii、I. L. Odinets
DOI:10.1007/s11172-009-0032-4
日期:2009.1
N (ω-Haloalkyl)amidothiophosphates, N (ω-Haloalkyl)amidothiophosphonates, and N- (ω-Haloalkyl)amidothiophosphinates (Hal = Cl or Br) were obtained in high yields by alkylation of phosphorus(V) acid thioamides with 6h,ω-dihaloalkanes under phase-transfer catalysis (PTC) conditions or through the use of NaH as a base. Thermal rearrangement of N (3-iodopropyl)-or N (4-iodobutyl)amidothiophosphate and N (3-iodopropyl)-or N (4-iodo-butyl)amidothiophosphonate obtained in situ by the Finkelstein reaction provides a convenient route to 2-oxo-1,3,2-thiazaphosphinanes and 2-oxo-1,3,2-thiazaphosphepanes. Reactions of N (ω-Haloalkyl)amidothiophosphinates with NaClO4 in MeCN afforded the first example of stable 1,3,2-thiazaphosphacyclanium salts containing P—C bonds.
N(ω-卤烷基)氨基硫代磷酸酯、N(ω-卤烷基)氨基硫代磷酸盐和N(ω-卤烷基)氨基硫代磷酸氢盐(Hal = Cl 或 Br)通过在相转移催化(PTC)条件下,或使用NaH作为碱,与6h,ω-二卤烷反应,获得了高收率。N(3-碘丙基)或N(4-碘丁基)氨基硫代磷酸酯和N(3-碘丙基)或N(4-碘丁基)氨基硫代磷酸盐在现场通过Finkelstein反应得到,热重排反应提供了一种便利的合成2-氧代-1,3,2-噻唑膦烷和2-氧代-1,3,2-噻唑膦环的路线。N(ω-卤烷基)氨基硫代磷酸氢盐与MeCN中NaClO4的反应提供了第一个包含P—C键的稳定1,3,2-噻唑膦盐类的实例。