Ruthenium Indenylidene and Vinylidene Complexes bearing Schiff Bases: Potential Catalysts in Enol-Ester Synthesis
作者:Tom Opstal、Francis Verpoort
DOI:10.1055/s-2002-31892
日期:——
for the nucleophilic addition of carboxylic acids to terminal alkynes. A careful choice of the catalytic system, substrate and carboxylic acid can provide alk- 1-en-2-yl esters, alk-1-en-1-yl esters synthesis or enyne dimerization. In this way substituted isopropenol and α-methylenebenzyl formates, (geminal, geminal) dienol diesters were synthesized in one step by direct addition of formic acid or benzoic
在我们之前对钌 (II) 席夫碱化学研究的扩展中,合成了配合物 1、2、3a-b 和 4a-b,并测试它们作为羧酸与末端炔烃亲核加成的催化剂。仔细选择催化体系、底物和羧酸可以提供烷-1-烯-2-基酯、烷-1-烯-1-基酯合成或烯炔二聚。以这种方式,通过将甲酸或苯甲酸直接加成到末端单-和二-炔上,一步合成取代的异丙烯醇和α-亚甲基苄基甲酸酯,(同生的,同生的)二烯醇二酯。