Author/Authors :
Taiji Akiyama، نويسنده , , Hiroki Uoyama، نويسنده , , Tetsuo Okujima، نويسنده , , Hiroko Yamada، نويسنده , , Noboru Ono، نويسنده , , Hidemitsu Uno، نويسنده ,
Abstract :
Nitration of 4,7-ethanoisoindoles gave 1-nitro derivatives in moderate yields. Reduction of a nitro to amino group was successfully performed by sodium hydrosulfite in the case of ethyl 3-nitro-4,7-ethanoisoindole-1-carboxylate. The amino derivative was converted to benzylidenaminoisoindoles based on the retro Diels–Alder reaction. Their UV–vis spectra showed strong absorptions at 500–700 nm.