Efficient One-Pot Synthesis of N-Substituted 2-Aminochromones, Their Benzo-Fused Derivatives, and Diaminobenzodipyrandiones of Two New Structural Classes
作者:Giorgio Roma、Daniela Piras、Mario Di Braccio、Giancarlo Grossi
DOI:10.1055/s-0029-1218623
日期:2010.3
one-pot synthesis, starting from the appropriate acetamides, salicylic acid or its benzo-fused derivatives, and phosphoryl chloride. By the same reaction, from suitable dihydroxybenzenedicarboxylic acids, some compounds of two new structural classes, 2,7-diaminobenzo[1,2-b:4,5-b′]dipyran-4,9-diones and 2,8-diamino-4H,6H-benzo[1,2-b:5,4-b′]dipyran-4,6-diones, were synthesized. amines - chromones - heterocycles
N-取代的2-
氨基
色酮及其
苯并稠合衍
生物是通过新的一锅法合成以高收率获得的,从合适的乙
酰胺,
水杨酸或其
苯并稠合衍
生物和
磷酰
氯开始。通过相同的反应,从合适的二羟基
苯二
甲酸中,得到两个新结构类别的一些化合物:2,7-二
氨基
苯并[1,2- b:4,5 - b '] dipyran-4,9-二
酮和2,8-二
氨基合成了-4 H,6 H-
苯并[1,2- b:5,4 - b ']双
吡喃-4,6-二
酮。 胺-
色酮-杂环-一锅合成-
吡喃