... XII.1'2' Synthesis of 2',3',5'- and 3',4',5'-Trioxygenated Flavones MUNEKAZU IINUMA,* TOSHIYUKI TANAKA, and SHIN MATSUURA Gifu College of Pharmacy, 5—6—1 Mitahora—higashi, Glfu 502, Japan (Received ... References and Notes 1) Part XI: M. Iinuma, T. Tanaka, and S ...