名称:
                                Generation of pyrrolo[2,3-d]pyrimidines. Unexpected products in the multicomponent reaction of 6-aminopyrimidines, dimedone, and arylglyoxal
                             
                            
                                摘要:
                                A series of 6-aryl-5-(1-cyclohexen-1-yl)pyrrolo[2,3-d]pyrimidines 9a-q were obtained by the three-component reaction between 6-aminopyrimidines 6, 7, 8, dimedone 2, and arylglyoxal 5a,b. The unexpected cyclization process was established by NMR and X-ray diffraction measurements. (C) 2010 Elsevier Ltd. All rights reserved.