A novel and facile cascade Biginelli-like assembly employing enaminone, aldehyde and urea/thiourea has been developed, which provides a highly chemo- and regioselective synthesis of new dihydropyrimidinones, 1,3-thiazines and chromones by altering particular functional groups in the reactants.
开发了一种新颖且简便的级联Biginelli类似反应,采用了烯酰胺、醛和
尿素/
硫脲,通过改变反应物中的特定官能团,实现了新型二氢
嘧啶酮、
1,3-噻嗪和
色酮的高度
化学选择性和区位选择性合成。