An efficient and regioselective one-pot multi-component synthesis of pyrimido[4,5-d]pyrimidine derivatives in water
作者:Swarup Majumder、Pallabi Borah、Pulak J. Bhuyan
DOI:10.1016/j.tetlet.2013.12.095
日期:2014.2
Pyrimido[4,5-d]pyrimidine derivatives 4 have been prepared in an efficient and regioselective manner in water via multi-component reaction of isothiocyanate 1, aromatic aldehyde 2, N,N-dimethyl-6-amino uracil 3 in the presence of p-toluenesulfonic acid (p-TSA) as a Lewis acid catalyst.
在水中存在下,通过异硫氰酸酯1,芳香醛2,N,N-二甲基-6-氨基尿嘧啶3的多组分反应,以高效且区域选择性的方式制备了嘧啶并[4,5- d ]嘧啶衍生物4。对-甲苯磺酸(p- TSA)作为路易斯酸催化剂。