THE CHEMISTRY OF INDOLES .66. A SYNTHESIS METHOD OF INDOLE-3-METHANAMINE AND OR GRAMINE FROM INDOLE-3-CARBOXALDEHYDE, AND ITS APPLICATION FOR THE SYNTHESIS OF BRASSININ, ITS 4-SUBSTITUTED ANALOGS, AND 1,3,4,5-TETRAHYDROPYRROLO[4,3,2-DE]QUINOLINE/
F. Yamada et al., THE CHEMISTRY OF INDOLES .66. A SYNTHESIS METHOD OF INDOLE-3-METHANAMINE AND OR GRAMINE FROM INDOLE-3-CARBOXALDEHYDE, AND ITS APPLICATION FOR THE SYNTHESIS OF BRASSININ, ITS 4-SUBSTITUTED ANALOGS, AND 1,3,4,5-TETRAHYDROPYRROLO[4,3,2-DE]QUINOLINE/, Heterocycles, 36(12), 1993, pp. 2783-2804
Simple conversion method of indole-3-carboxaldehyde into gramine and/o
r indole-3-methanamine was developed. The present method realized shor
t step syntheses of brassinin, 4-iodo-, methoxy-, 4-methoxy-, and 4-ni
trobrassinin, 4-methoxyindole-3-acetonitrile, and 1, 3, 4, 5-tetrahydr
opyrrolo[4, 3, 2-de]quinoline.