CwLruRE (I. R. S. I. A,) pour la bourse qui lui a dt6 accord&. Sous remercions cnfin Mmc S. FRANCK-FREDERIC, Dr 6s Sc., qui a cffectud les micro-analyscs de nos protluits, Mlle 1;. EVRARD qui cn a rclcvcl les spectres IR., c,t NM. I,. MARCEIRL et I. FLAMEKT pour l'aide qu'ils nous ont apportde lors
Action des aldéhydes formique et acétique sur les d, l- et méso-dianilino-1, 2-diphényl-1, 2-éthanes
✍ Scribed by R. Jaunin
- Publisher
- John Wiley and Sons
- Year
- 1960
- Tongue
- German
- Weight
- 387 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Formaldehyde and acetaldehyde react with either d, l‐ or meso‐1, 2‐dianilino‐1, 2‐diphenyl‐ethane (I) in acetic acid‐acetone solution at room temperature to give quantitatively the tetraphenylimidazolidines IV and V.
📜 SIMILAR VOLUMES
__d__,__l__‐1, 2‐Dianilino‐1,2‐diphenyl‐ethane reacts readily and specifically with aldehydes to form substituted __d__, __l__‐1,3,4,5‐tetraphenylimidazolidines, which are highly crystalline compounds with sharp melting points distributed over a wide range of temperature. The reaction has been used
## 248. SCparation et diffkrenciation des formes d,l et meso des diarylamino-1 ,2-diphCnyl-l, 2-Cthanes par R. Jaunin et P . Courbat (3 X 60) Dans un prCcCdent travail1), nous avons constat6 que les deux diastCrCo-isomhres du dianilino-l,2-diphCnyl-l, 2-Cthane (I) peuvent &re aiskment sCparCs sous
## Abstract Dimethylformamide has been found to give solid complexes with both d,l and meso 1,2‐dianilino‐1, 2‐diphenylethanes (I), but only with the meso forms of 1,2‐di‐o‐ and 1,2‐di‐p‐toluidino‐1,2‐diphenylethanes (resp. II and III). These complexes are particularly suitable for the separation o
## Abstract ARRHENIUS parameters have been determined (a) for the solvolysis of 1‐,3‐ and 4‐chloromethylpyrene in different solvents (Table 11) and (b) for the S,2 reaction of 1‐ and 4‐chloromethylpyrene with KI in acetone (Table IV). Taking into account previous results, it is shown that 3‐chlorom