作者:Shyam Sunder、Norton P. Peet
DOI:10.1002/jhet.5570150826
日期:1978.12
A new and efficient synthesis of benzof'uro[3,2-b]quinolin-6(11H) one (3) is reported, by treatment of 2- [(phenoxy)acetyl]amino} benzoic acid (6a) with polyphosphoric acid. An intermediate in the conversion of 3 to 6a, namely, 2-(3-benzofuranylamino)benzoic acid (7), was defined. An improved method for the synthesis of 6a is also described, which was used to prepare analogs (6b-n) of 6a. In addition
报道了一种新的高效合成苯并f'uro [3,2 - b ]喹啉-6(11 H)的一(3)的方法,该方法是用2-[((苯氧基)乙酰基]氨基}苯甲酸(6a)处理多磷酸。定义了3至6a转化的中间体,即2-(3-苯并呋喃基氨基)苯甲酸(7)。用于合成的改进方法6a中还描述的,将其用于制备类似物(图6b-N的)6a中。另外,苯并呋喃[3,2-]的11-烷氧基衍生物(8)和11-二烷基氨基衍生物(10和11)。b ]喹啉由3制备。