## Abstract The positions of conformational equilibria in 1,5‐, 1‐6‐ and 1,8‐dimethylperhydro‐oxazolo[3,4‐__a__]pyridines were determined by ^1^H NMR spectroscopy. The __cis__‐(H‐5, H‐8a)‐1,6‐dimethyl‐perhydro‐oxazolo[3,4‐__a__]pyridine. In contrast, __r__‐1,__t__‐6,__t__‐8a‐1,6‐dimethylperhydro‐ox
Compounds with bridgehead nitrogen. Part 54. The stereochemistry of some derivatives of perhydrothiazolo[3,4-a]pyridine and the synthesis of 9-methylperhydro-3,8-methano-1,3-thiazocines
✍ Scribed by Crabb, Trevor A.; Trethewey, Andrew N.; Takeuchi, Yoshito
- Book ID
- 121011203
- Publisher
- Royal Society of Chemistry
- Year
- 1988
- Weight
- 591 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1472-7781
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## 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
The configurations and preferred conformations of some perhydrooxazolo[3,4-alquinolines and of the related 3,3a,4,5-tetrahydro-1H-oxazolo[3,4-u]quinolines have been assigned on the basis of their 'H NMR spectra. Comparison of the spectra of the two sets of compounds shows the effect of replacement o