Cascade imination, Buchwald–Hartwig cross coupling and cycloaddition reaction: synthesis of pyrido[2,3-d]pyrimidines
作者:Pallabi Saikia、Gitarthi Sharma、Sanjib Gogoi、Romesh C. Boruah
DOI:10.1039/c5ra00725a
日期:——
A novel and efficient palladium catalyzed method was developed for the synthesis of wide range of pyrido[2,3-d]pyrimidines, using readily available β-bromovinyl/aryl aldehydes and 6-amino-1,3-dialkyluracils as the starting materials with good yields. This reaction proceeds via cascade imination/Buchwald–Hartwig cross coupling/cycloaddition reactions undermicrowaveirradiation and solvent free conditions
开发了一种新颖高效的钯催化方法,以易得的β-溴乙烯基/芳基醛和6-氨基-1,3-二烷基尿嘧啶为原料,合成了广泛的吡啶并[2,3- d ]嘧啶。良品率高。该反应通过微波辐射和无溶剂条件下的级联亚胺/ Buchwald-Hartwig交叉偶联/环加成反应进行。
TROSCHUETZ R.; ROTH H. J., ARCH. PHARM., 1978, 311, NO 6, 542-547