New monomeric organoaluminium chelate compounds; N-diethylaluminium N-methyl dialkylthiophosphinic amide and dialkyldithiophosphinate; R2P(S)–X–AlEt2 (X=NMe, S), were prepared. Spectroscopic results of these compounds indicate an intramolecular coordination of sulfur atom of P=S bond to the organoaluminium moiety. Addition reactions of Me2P(S)–NMe–AlEt2 and Et2P(S)–S–AlEt2 with phenyl isocyanate gave
新型单体
有机铝螯合物;N-
二乙基铝 N-甲基二烷基
硫代次膦酰胺和二烷基二
硫代
次膦酸盐;制备了 R2P(S)–X–AlEt2 (X=NMe, S)。这些化合物的光谱结果表明 P=S 键的
硫原子与
有机铝部分发生分子内配位。Me2P(S)–NMe–AlEt2 和 Et2P(S)–S–AlEt2 与
异氰酸苯酯的加成反应产生相应的 1/1 加合物,仅获得少量消除产物。Me2P(S)–NMe–AlEt2 与
苯甲醛反应得到 Me2P(S)–NMe–CH(Et)Ph 和 PhCH=NMe(通过两种加成消除方式)。