Procedures for the preparation of 2-(cyclic) 2-(cyclic) tar-3-(4-substituted-benzofuran) -5-nitro-benzofuran derivatives; intermediate compounds considered; and one of the intermediate compounds.
Process for preparing 2 - alkyl - 5 - 3 - aroil nitrobenzofuranos by acylation of 2 - (hodroxi - 5 - nitrofenil) - 1 - aryl Esters etanonas and subsequent Treatment with bases and Lewis Acids; and compuThese intermediaries to prepare 2 - N - butyl - 4 - (4-methoxybenzoyl) - 5 - nitrobenzofurano.Procedimiento para preparar 2-alquil-3-aroil-5-nitrobenzofuranos por acilación de 2-(2-hodroxi-5-nitrofenil)-1-aril-etanonas y posterior tratamiento de los esteres con bases y ácidos de lewis; y compuestos intermediarios para preparar 2-n-butil-3-(4-metoxibenzoil)-5-nitrobenzofurano.