Abstract
The diindolylmethanes 3–4 are synthesized by condensation of the indoles 1 (2 equiv.) and antipyrine‐4‐carbaldehyde 2 in methanolic p‐toluenesulfonic acid. The methanes 3–4 are converted into their dyes 6–7 by triphenylcarbenium‐tetrafluoroborate in dichloromethane. The structures of 6–7 were confirmed by spectroscopic methods and elemental analysis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 921-924 |
| Number of pages | 4 |
| Journal | Archiv der Pharmazie |
| Volume | 321 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1988 |