Reactions of 1,1,1-Trifluoro[chloro]-4-ethoxybut-3-en-2-ones with 1,3-Dicarbonyl Compounds: Synthesis of 5-Acetyl[carboxyethyl]-1,1,1-trifluoro[chloro]hept-3-ene-2,6-diones and their Cyclic Derivatives Phenol, Pyridines, and Azetone
作者:Nilo Zanatta、Rosemario Barichello、Helio G. Bonacorso、Marcos A. P. Martins
DOI:10.1055/s-1999-3457
日期:1999.5
The synthesis of 5-acetyl[carboxyethyl] 1,1,1-trifluoro[chloro]hept-3-ene-2,6-diones (3a,b, 4a,b) and their cyclic derivatives 1-[2-hydroxy-4-(trifluoromethyl)phenyl]ethanone (5a), 1-[2-hydroxy-6-(trichloro[fluoro]methyl)pyridin-3-yl]ethanone (6c, 7c), and 3-acetylazet-2(1H)-one (8), obtained from the reactions of 1,1,1-trifluoro[chloro]-4-ethoxybut-3-en-2-one (1, 2), with 1,3-dicarbonyl compounds such as acetylacetone (a), ethyl acetoacetate (b), and acetoacetamide (c) and sodium hydride in anhydrous THF, is reported.
5-乙酰基[羧乙基]1,1,1-三氟[氯]庚-3-烯-2,6-二酮(3a,b, 4a,b)及其环状衍生物 1-[2-羟基-4-(三氟甲基)苯基]乙酮(5a)、1-[2-羟基-6-(三氯[氟]甲基)吡啶-3-基]乙酮(6c, 7c)的合成、和 3-乙酰氮杂环丁烷-2(1H)-酮 (8) 在无水 THF 中与 1,1,1-三氟[氯]-4-乙氧基丁-3-烯-2-酮 (1, 2) 和 1,3-二羰基化合物如乙酰丙酮 (a)、乙酰乙酸乙酯 (b) 和乙酰乙酰胺 (c) 以及氢化钠反应而得到。