Process for producing 1,2,5,6-tetrahydro-4h- pyrrolo¬3,2,1-ij -quinolin-4-one, and 5- halo-1,2,3-(1,2-dihydropyrrolo)-4-quinolones as intermediates for carrying out the process

Abstract From the Canadian patent

A process for producing 1,2,5,6-tetrahydro-4H-pyrrolo- 3,2,1-ij-quinolin-4-one, and novel 5-halo-1,2,3- (1,2-dihydropyrrolo)-4-quinolones as intermediates for carrying out the process, Abstract, There is described a novel process for producing 1,2,5,6-tetrahydro-4H-pyrrolo3,2,1-ij-quinolin-4-one (4-lilolidone), usable as fungicide and corresponding to the formula, , as well as novel 5-halo-1,2,3-(1,2-dihydropyrrolo)-4quinolones of the formula, , in which "Hal" is chlorine or bromine which are formed, as intermediates during the process which process, comprises reacting an N-haloacetylindoline of the formula in which "Hal" is chlorine or bromine, with an addition product formed from an …