含窒素複素環化合物(第1報)5,6-Dialkoxy-2-aryl-2H-indazolesの簡易合成
1975 年 95 巻 10 号 p. 1245-1249
詳細
1975 年 95 巻 10 号 p. 1245-1249
4, 5-Dialkoxy-2-nitrobenzaldehydes (IXa to IXd) were condensed with anilines (Xa to Xd), followed by immediate treatment with triethyl phosphite, to afford 5, 6-dialkoxy-2-aryl-2-H-indazoles (VIa to VIl) in a fair yield. Nuclear magnetic resonance and infrared spectra of the indazoles were discussed.
