Tetracarbonylbis(1,3-dimethyl-4-imidazolin-2-ylidene)chromium(0)
✍ Scribed by Dr. Karl Öfele; Dr. Max Herberhold
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 241 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
downfield. Thus on complex formation of (/), additional shielding and deshielding effects occur which can be explained in terms of a diamagnetic ring current in complex (2). We therefore propose the homoaromatic structure (2a) for the complex. Further support for this assignment comes from the fact
## Novel Conversion of Perfluoro(2,6-dimethyl-1-azacyclohexene) to 3,3,4,4,5-Pentafluoro-2,6-diphenyl-2,6-bis (trifluoromethyl)-1azabicyclo[3.1.0]hexane. -Treatment of perfluoro-azacyclohexene (I) with 2 equiv. of phenyllithium (V) in a cyclohexane/Et 2 O mixture provides access to azabicyclohex
The racemic title bicycle (V) undergoes spontaneous resolution on crystallization from chloroform or acetone. The absolute configuration of the obtained enantiopure product (16-44% e.e.) is determined by comparison with (S)-(V) derived from (S)-Ser-OMe (I). Mutarotation due to partial conversion of