Direct Access to Pyrrolyltripyrrins and Calixsmaragdyrin from SNAr Reactions on α,α'-Dibromotripyrrins with Pyrroles or Indoles.
Org Lett
; 25(24): 4483-4488, 2023 Jun 23.
Article
in En
| MEDLINE
| ID: mdl-37294083
ABSTRACT
Linear π-conjugated oligopyrroles are attractive precursors for the synthesis of expanded porphyrinoids, chemosensors, and supramolecular motifs. We demonstrate a new method for the synthesis of a set of linear pyrrolyltripyrrins and dipyrrolyltripyrrins through a regioselective SNAr reaction on α,α'-dibromotripyrrins using various pyrroles or indoles. A representative calixsmaragdyrin was prepared via the 2-fold SNAr reaction between α,α'-dibromotripyrrin and dipyrromethene through a convergent [3 + 2] strategy. These oligopyrroles showed intense deep red absorptions with an interesting pH response.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pyrroles
/
Indoles
Language:
En
Journal:
Org Lett
Journal subject:
BIOQUIMICA
Year:
2023
Document type:
Article
Affiliation country:
China