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Synthesis of α,β'- and β,β'-linked dimethoxycarbonyldipyrromethanes by Rothemund-type condensation
Date de parution
2012-7-15
In
Synlett
Vol.
12
No
23
De la page
1835
A la page
1839
Mots-clés
- Crystal structure
- Molecular structure (of regioisomeric dimethoxycarbonyldipyrromethanes obtained by Rothemund-type condensation of methoxycarbonylpyrrole with acetone)
- Freezing point
- Fusion enthalpy
- Hydrogen bond
- Melting point
- Molecular association
- Regioselective synthesis
- Rothemund reaction
- Supramolecular structure (prepn.
- structure
- and phase transitions of regioisomeric dimethoxycarbonyldipyrromethanes by Rothemund-type condensation of methoxycarbonylpyrrole with acetone)
- methoxycarbonylpyrrole acetone Rothemund condensation
- dimethoxycarbonyldipyyromethane regioselective prepn crystal structure hydrogen bond supramol assembly
Résumé
The Rothemund-type condensation of methoxycarbonylpyrrole with acetone produces mainly the α,β'-linked dipyrromethane, a building block for the synthesis of N-confused macrocycles. The influence of the reaction conditions on the regioselectivity of the process is reported. The x-ray structures of the α,α'-, α,β'- and β,β'-linked dipyrromethanes show an interesting discrimination of the structurally different types of hydrogen bonds. [on SciFinder(R)]
Identifiants
Type de publication
journal article
