No abstract

In the presence of an effective air-stable nucleophilic trialkylphosphane orgaocatalyst, 1,3,5-triaza-7-phosphaadamantane, N-diethoxythiophosphorylimines 1 and N-diphenylthiophosphinoylimines 2 exhibited good reactivity in the methyl vinyl ketone or methyl acrylate based aza-MoritaBaylis-Hillman reaction. The corresponding products were obtained in fair-to-excellent chemical yields. Moreover, the

A convenient and practical method for the preparation of N-thiophosphoryl imines was developed through the thermal condensation of acetals with different thiophosphoramides at

Thermal condensation of acetals with different thiophosphoramides at 120-160 °C resulted in the formation of the corresponding N-thiophosphoryl imines in good to excellent yield (80-98%) with high purity (>95%, determined by 1 H NMR and elemental analyses).

Organo-phosphorus compounds S 0080Reaction Between N-(Thio)phosphoryl Imines and Diethylzinc. -For imines (I), bearing at least one P-O single bond, the reduction product (II) is formed in excellent yield in the nonpolar solvent toluene. In a polar solvent, (II) is accompanied by partial formation of the alkylation product of type (IV). The latter becomes the predominant component in the presence o strong coordinative additives such as TMEDA. -(MA, X.; WANG, C.; XU, X.; ZHAO, G.; ZHOU*, Z.; TANG, C.; Lett.