Solvent-Dependent Stereoselectivity of Bis-2-pyridone [4 + 4] Photocycloaddition Is Due to H-Bonded Dimers
| Autor: | Scott McN. Sieburth, Kevin F. McGee |
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| Rok vydání: | 1999 |
| Předmět: |
Models
Molecular Light Pyridones Hydrogen bond Chemistry Stereochemistry Organic Chemistry Molecular Conformation Hydrogen Bonding Stereoisomerism Biochemistry Medicinal chemistry Solvent 2-Pyridone Concentration dependent chemistry.chemical_compound Cyclization Intramolecular force Solvents Stereoselectivity Physical and Theoretical Chemistry Selectivity Dimerization |
| Zdroj: | Organic Letters. 1:1775-1777 |
| ISSN: | 1523-7052 1523-7060 |
| Popis: | [formula: see text] A solvent-dependent stereoselectivity found for intramolecular [4 + 4] photocycloaddition of tethered 2-pyridones is concentration dependent, indicating that a dimeric structure with four hydrogen bonds plays a critical role in the observed cis selectivity found for nonpolar solvents. |
| Databáze: | OpenAIRE |
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