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Sterically hindered N-aryl-2(1H)-quinolones and N-aryl-6(5H)-phenanthridinones: separation of enantiomers and barriers to racemization

✍ Scribed by Mintas, Mhaden; Mihaljevi?, Vesna; Koller, Helmut; Schuster, Doris; Mannschreck, Albrecht


Book ID
126485937
Publisher
Royal Society of Chemistry
Year
1990
Tongue
English
Weight
705 KB
Volume
4
Category
Article
ISSN
1472-779X

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The ease of thermal breaking of the C(sp3)-0 bond of the 2-aryl-2-methyl-2H-l-benzopyrans 1-9 was evaluated by measuring the free energy (Act) of the racemization reaction of optically active compounds. The variation of AGZ of the thermal ring opening in terms of structural modifications is discusse