A Convenient Method for the Preparation of Linear Furoquinolin-2-ones
Fries rearrangement of 7-acetoxy-4-methylquinolin-2-one and subsequent condensation of the 6-acetyl-7-hydroxy-4-methylquinolin-2-one obtained with α-chloro ketones gives a series of furo[3,2-g]quinolin-7-ones.