A binuclear aluminium complex as a single competent catalyst for efficient synthesis of urea, biuret, isourea, isothiourea, phosphorylguanidine, and quinazolinones
作者:Kulsum Bano、Jyoti Sharma、Archana Jain、Hayato Tsurugi、Tarun K. Panda
DOI:10.1039/d2ra07714k
日期:——
the addition of simple nucleophiles to heterocumulenes, leading to the synthesis of a variety of products such as urea, biuret, isourea, isothiourea, phosphorylguanidine, and quinazolinone derivatives, in contrast to its mononuclear analogues. Complex 3a is the first example of a single competent catalyst, which is also low-cost and eco-friendly and derived from a main-group metal, under solvent-free
两种单核烷基铝配合物的合成与表征,其通式为 [Al(Me) 2 Ph 2 P(E)N(CH 2 ) 2 N(CH 2 CH 2 ) 2 O}] (E = Se ( 2a ); S ( 2b )) 和两个双核铝配合物 [Al(Me) 2 Ph 2 P-(E)N(CH 2 ) 2 N(CH 2 CH 2 ) 2 O}(AlMe 3 )] (描述了E=Se( 3a )和S( 3b ))。双核烷基铝配合物3a被证明是一种有效的催化剂,可用于将简单亲核试剂加成到杂积烯上,从而合成多种产品,如尿素、缩二脲、异脲、异硫脲、磷酰胍和喹唑啉酮衍生物。单核类似物。配合物3a是单一活性催化剂的第一个例子,它也是低成本且环保的,并且衍生自主族金属,在室温或温和温度的无溶剂条件下。配合物3a具有广泛的官能团耐受性,包括杂原子,可以大量且高选择性地产生相应的插入产物。