Interception of photochemical intermediate of thiazole derivatives. Formation and isomeristion of iminoazetine and azetinone intermediates
作者:Hiroshi Kato、Kozo Wakao、Akira Yamada、Masanobu Kojima
DOI:10.1039/c39840001558
日期:——
Irradiation of 4-aminothiazolium salts (7) in the presence of tributylphosphine gave enaminonitriles 9) and benzoylacetonotrile (8) by isomerisation and hydration of the iminoazetine intermediates (11), while a similar irradiation of the mesoionic triphenylthiazolium-4-oate (1) gave the quinolinol (5) by isomerisation of the azetione intermediate (3).
4- aminothiazolium盐(照射7在三丁基膦的存在下),得到enaminonitriles 9)和benzoylacetonotrile(8由iminoazetine中间体(异构化和水合)11),而中离子triphenylthiazolium-4 -酸酯的类似照射(1)得到羟基喹啉(5由azetione中间体(异构化)3)。