Bicyclic Sultams with a Nitrogen at the Bridgehead and a Sulfur Atom in the Apex Position: Facile Preparation and Conformational Properties
✍ Scribed by Valentin A. Rassadin; Daria S. Grosheva; Aleksandr A. Tomashevskiy; Viktor V. Sokolov; Dmitry S. Yufit; Sergei I. Kozhushkov; Armin de Meijere
- Book ID
- 102176411
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 261 KB
- Volume
- 2010
- Category
- Article
- ISSN
- 1434-193X
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📜 SIMILAR VOLUMES
## Abstract Some bridgehead nitrogen compounds possessing the CH(Me)‐bridgehead NC(O) system have been synthesised and their configurations assigned. The chemical shifts of the proton geminal to the methyl group provides evidence for the existence of a deformed chair conformation for the methyl su
## Abstract The ^1^H NMR parameters of the NCH~2~O protons in the spectrum of perhydropyrrolo[1,2‐__c__][1,3]oxazine show its existence in solution at room temperature in the __O__‐inside __cis__‐fused conformation. __rel__‐(3a__S__,6a__S__,6b__R__,10a__S__,11a__S__)‐6a‐Methylperhydroindolo[3,2,1‐_
## Abstract __cis__(1‐H, 8a‐H)‐1‐Methylperhydro‐oxazolo[3,4‐__a__]pyridine and __cis__(1‐H, 8a‐H)‐1‐methylperhydrothiazolo[3,4‐__a__]pyridine both adopt exclusively the __trans__‐fused conformation in carbon tetrachloride solution at room temperature. Both parent unsubstituted systems exist under s