作者:Delphine Brugier、Francis Outurquin、Claude Paulmier
DOI:10.1016/s0040-4020(97)00681-9
日期:1997.7
Monocarbamates 2 have been prepared from 3,4-diaminothiophene 1 and were alkylated on the thiophene nucleus using an aldehyde and selenophenol, under acid catalysis. This reaction has allowed the access to 2-alkyl 3,4-diaminothiophenes 9, 3,5-diaminodithieno[3,2-b:2′,3′-e]pyridines 10 and l-alkyl thieno[3,4-d]imidazolones 13.
由3,4-二氨基噻吩1制备单氨基甲酸酯2,并在酸催化下使用醛和硒酚在噻吩核上烷基化。该反应已经允许访问2-烷基-3,4- diaminothiophenes 9,3,5- diaminodithieno并[3,2-B:2',3'-E]吡啶10和1-烷基噻吩并[3,4-d ]咪唑酮13。