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Syntheses, separation of enantiomers and barriers to racemization of some sterically hindered N-aryl-1,2,3,4-tetrahydro-3,3-dimethyl-2,4-quinolinediones and their thio analogues

✍ Scribed by R. Šarac-Arneri; M. Mintas; N. Pustet; A. Mannschreck

Book ID
104952860
Publisher
Springer Vienna
Year
1994
Tongue
English
Weight
659 KB
Volume
125
Category
Article
ISSN
0026-9247

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Crystal and molecular structures of atro
Crystal and molecular structures of atropisomeric N-aryl-1,2,3,4-tetrahydro-3,3-dimethyl-2,4-quinolinediones
✍ Mario Cetina; Nada Košutić-Hulita; Ante Nagl; Mladen Mintas 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 393 KB 👁 1 views

## Abstract The crystal structures of __N__‐aryl‐1,2,3,4‐tetrahydro‐3,3‐dimethyl‐2,4‐quinolinediones bearing methoxy‐ (**1**), methyl‐ (**2**), and chloro‐ (**3**) substituents in 2′‐position of the phenyl ring have been determined by X‐ray crystal structure analysis. The heterocyclic ring in **1–3