Berk Mujde, Sevil Özcan, M. Balci
Dec 1, 2011
Citations
0
Influential Citations
14
Citations
Journal
Phytochemistry Letters
Abstract
Abstract We hereby report a new method for preparation of 3,4-dihydroisoquinolin-1(2H)-one as well as isoquinolin-1(2H)-one skeleton starting from the methyl 2-(3-methoxy-3-oxopropyl)benzoate. The ester functionality, adjacent to the methylene, was regiospecifically converted to the desired acyl azide. The isocyanate was transformed into the monoisocyanate by Curtius rearrangement followed by trapping with aniline. The formed urea derivative was cyclized with NaH to give a 3,4-dihydroisoquinolin-1(2H)-one derivative. Incorporation of a double bond into the six-membered ring followed by removal of the substituent resulted in the formation of isoquinolin-1(2H)-one skeleton.