Synthesis of ethyl 2-aminodihydro-5-pyrimidinecar-boxylate derivatives and 3,7-diethoxycarbonyl-4,6-dihydro-2,4,6,8-tetraaryl-1<i>H</i>-pyrimido[1,2-<i>a</i>]pyrimidines
作者:René Milcent、Jean-Claude Malanda、Géo Barbier、Jacqueline Vaissermann
DOI:10.1002/jhet.5570340152
日期:1997.1
Reactions of ethyl 3-aryl-2-benzoylpropenoates 1 with guanidine and N-alkyl(or benzyl)guanidines have been investigated. Ethyl 2-aminodihydro-5-pyrimidinecarboxylate derivatives 3, 4 or 5, and 3,7-diethoxy-carbonyl-4,6-dihydro-2,4,6,8-tetraaryl-1H-pyrimido[1,2-a]pyrimidines 6 have been synthesized.
已经研究了3-芳基-2-苯甲酰基丙烯酸乙酯1与胍和N-烷基(或苄基)胍的反应。2-氨基二氢-5-嘧啶羧酸乙酯衍生物3、4或5和3,7-二乙氧基羰基-4,6-二氢-2,4,6,8-四芳基-1 H-嘧啶[1,2- a已经合成了嘧啶6。