Calcium-mediated Hydrophosphorylation of Organic Isocyanates with Diphenylphosphane Oxide
作者:Stephan Härling、Julia Greiser、Tareq M. A. Al-Shboul、Helmar Görls、Sven Krieck、Matthias Westerhausen
DOI:10.1071/ch13259
日期:——
The calcium-mediated addition of diphenylphosphane oxide to organic isocyanates and isothiocyanates yields N-alkyl and N-aryl substituted diphenylphosphorylformamides (E = O, R = iPr, tBu, cHex, Ph, C6H4-4-Br, C6H2-2,4,6-Me3, and Naph) and -thioformamides (E = S, R = iPr, cHex, Ph, and C6H4-4-Me), respectively, of the type Ph2P(O)–C(E)–N(H)R. All derivatives were characterized by IR and NMR spectroscopy
钙介导的二苯基膦氧化物在有机异氰酸酯和异硫氰酸酯中的加成反应生成N-烷基和N-芳基取代的二苯基磷酰基甲酰胺(E = O,R = i Pr,t Bu,c Hex,Ph,C 6 H 4 -4-Br, C 6 H 2 -2,4,6 -Me 3和Naph)和-硫代甲酰胺(E = S,R = i Pr,c Hex,Ph和C 6 H 4 -4-Me) Ph 2型P(O)–C(E)–N(H)R。所有衍生物都通过IR和NMR光谱以及X射线衍射实验进行了表征。对于硫代类似物和N-芳基取代基,NH拉伸模式的波数较小。在固态下,所有甲酰胺和硫代甲酰胺都通过N–H⋯O–P氢桥形成二聚体。与P–C Ph距离相比,P–C CE键显着延长。