Facile one-pot synthesis of novel ortho-aminocarbonitriles and dicyanoanilines fused to heterocycles via pseudo four-component reactions
作者:Mohammad M. Mojtahedi、Ladan Pourabdi、M. Saeed Abaee、Hamed Jami、Masoud Dini、Mohammad R. Halvagar
DOI:10.1016/j.tet.2016.02.023
日期:2016.3
1-Methylpiperidin-4-one and its sulfur and oxygen analogues undergo individual facile pseudo four-component reactions with two folds of malononitrile and various aldehydes by using ultrasonic irradiation and deficient quantities of pyrrolidine. As a consequence, ortho-aminocarbonitrile products are formed efficiently in the mixture within 1–2 min of irradiation. Alternatively, the same mixtures of