Synthesis of new halo-containing acetylenes and their application to the synthesis of azoles
作者:Marcos A.P Martins、Daniel J Emmerich、Claudio M.P Pereira、Wilson Cunico、Marcelo Rossato、Nilo Zanatta、Helio G Bonacorso
DOI:10.1016/j.tetlet.2004.04.106
日期:2004.6
The convenient synthesis of ten halo- and an isoxazole-containing acetylenes from the reaction of acetylenes with n-butyl lithium and subsequent reaction with an electrophile agent (ethyl trichloroacetate, ethyl dichloroacetate, trifluoroacetic anhydride, 3-methylisoxazol-5-carbonyl chloride, carbon tetrachloride and 1,1,1-trifluoro-4-ethoxy-3-buten-2-one) in moderated to good yields is reported. The
通过乙炔与正丁基锂的反应以及随后与亲电子试剂(三氯乙酸乙酯,二氯乙酸乙酯,三氟乙酸酐,3-甲基异恶唑-5-羰基氯,碳,据报道,四氯化物和1,1,1-三氟-4-乙氧基-3-丁烯-2-酮的收率适中至良好。还显示了1,1,1-三氯-4-苯基-3-丁炔-2-酮在合成两种吡咯中的应用。