Sughrue Mion, PLLC
Process for producing isochromanones and intermediates thereof
(1) Methods for producing isochromanone compounds from o-xylene compounds as starting compounds through &agr;-halogeno-o-xylene derivatives, &agr;-cyano-o-xylene derivatives, and &agr;-halogeno-&agr;&#8242;-cyano-o-xylene derivatives, and (2) methods for producing isochromanone compounds from o-xylene compounds as starting compounds through &agr;,&agr;&#8242;-dihalogeno-o-xylene derivatives, &agr;,&agr;&#8242;-dihydroxy-o-xylene derivatives, &agr;-halogeno-&agr;&#8242;-hydroxy-o-xylene derivatives and &agr;-cyano-&agr;&#8242;-hydroxy-o-xylene derivatives, and methods for producing these intermediate compounds.
Showa Denko K.K.
C C C C C
C07C C07C C07C C07C C07D
inventional inventional inventional inventional inventional
Makoto Masaru Akira Kimitaka Yoshiaki
Saito Yasuda Shibuya Ohshiro Miyota