Fukushima, S Studies on benzochromones. V. Synthesis and ring isomerization of 2-methyl-5,8-dimethoxy-6,7-benzochromone. [electronic resource] - Chemical & pharmaceutical bulletin Mar 1964 - 307-11 p. digital Publication Type: Journal Article ISSN: 0009-2363 Standard No.: 10.1248/cpb.12.307 doi Subjects--Topical Terms: Chromones--chemical synthesis