## Abstract The ^1^H and ^13^C NMR spectra of __trans__‐ and __cis__‐__tert__‐butyl 2‐methoxy‐5,6‐dihydro‐2__H__‐pyran‐6‐carboxylates (1 and 2) and 6,6′‐disubstituted 2‐methoxy‐5,6‐dihydro‐2__H__‐pyrans (3‐7) have been recorded. HH and CH coupling constants are discussed in terms of the ^1^H~6~⇄^6^
The proton magnetic resonance spectrum of 4-t-butyl-5, 6-dihydro-4H-pyran
✍ Scribed by Andrew DeBoer
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 224 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
The proton magnetic resonance spectrum of 4‐t‐butyl‐5,6‐dihydro‐4H‐pyran has been analyzed with the aid of the paramagnetic shift reagent Eu(fod)~3~. All hydrogen‐hydrogen spin‐spin coupling constants are reported and a conformation is suggested which is consistent with these data.
📜 SIMILAR VOLUMES
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract The preparation of [^3^H]‐labelled tert‐butyl 8‐chloro‐5,6‐dihydro‐5‐methyl‐6‐oxo‐4H‐imidazo[1,5‐a][1,4]benzodiazepine 3‐carboxylate (TCIB, 6), a high affinity ligands for the diazepam insensitive (DI) subtype of the benzodiazepine receptor (BZR) is described. Synthesis of [^3^H]TCIB wa