<i>ortho</i>-Disubstituted<i>F</i>-Benzenes. III. Preparation of (<i>F</i>-Benzo)heterocyclic Compounds from<i>F</i>-Benzoic Acid and<i>F</i>-Phenol, and the Reactions of Some Intermediary<i>F</i>-Benzoyl- and<i>F</i>-Phenoxy Compounds
作者:Yoshinari Inukai、Yoshitsugu Oono、Takaaki Sonoda、Hiroshi Kobayashi
DOI:10.1246/bcsj.54.3447
日期:1981.11
With the intention of achieving the selective ortho-substitution of F-benzoic acid and F-phenol via intramolecular nucleophilic cyclization, preparation of some requisite precursory F-benzoyl- and F-phenoxy compounds and their nucleophilic cyclization reactions were examined. 1,2-(F-Benz)isoxazol-3(2H)-one, 2-(p-tolyl)-1,2-(F-benz)isoxazol-3(2H)-one, 1,3-dimethyl(F-benzo)pyrimidine-2,4(1H,3H)-dione
为了通过分子内亲核环化实现 F-苯甲酸和 F-苯酚的选择性邻位取代,研究了一些必需的前体 F-苯甲酰基和 F-苯氧基化合物的制备及其亲核环化反应。1,2-(F-Benz)isoxazol-3(2H)-one, 2-(p-tolyl)-1,2-(F-benz)isoxazol-3(2H)-one, 1,3-二甲基( F-苯并)嘧啶-2,4(1H,3H)-dione 和 1,4-(F-Benz)oxazin-3(2H)-one 从各自的前体 F-苯异羟肟酸 N-(p -甲苯基)-N-羟基-F-苯甲酰胺、N,N'-二甲基-N-(F-苯甲酰基)脲和2-(F-苯氧基)乙酰肼。2-(F-苯氧基)乙酰异羟肟酸和(F-苯氧基)乙酸的环化尝试伴随同时开环并导致形成相同的产物:(2-羟基-F-苯氧基)乙酸。