4-ethoxy-2,3-difluoroaniline

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: is obtained by reacting 2,3-difluoro-4-ethoxythiophenol (obtainable analogously to Reference 7 from 2,3-difluoro-4-ethoxyaniline [189751-13-1]) and 4-hexylphenacyl bromide analogously to Reference 5 to give 6,7-difluoro-2-(4-hexylphenyl)-5-ethoxybenzo[b]thiophene, ether cleavage by means of hydrobromic acid/acetic acid to give 6,7-difluoro-2-(4-hexylphenyl)-5-hydroxybenzo[b]thiophene and Williamson ether synthesis using heptyl bromide in 2-butanone in the presence of potassium carbonate. is obtained