作者:Taiji Akiyama、Hiroki Uoyama、Tetsuo Okujima、Hiroko Yamada、Noboru Ono、Hidemitsu Uno
DOI:10.1016/j.tet.2009.03.072
日期:2009.5
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.
硝化4,7-乙基异吲哚可得到中等产率的1-硝基衍生物。在3-硝基-4,7-乙基异吲哚-1-羧酸乙酯的情况下,亚硫酸氢钠成功地将硝基还原为氨基。根据逆狄尔斯-阿尔德反应,将氨基衍生物转化为亚苄基氨基异吲哚。他们的紫外可见光谱在500–700 nm处显示出很强的吸收率。