T h e deshielding effect of the hydroxyl group o n axial ring protons through 1,3diaxial spatial interaction has been studied in truns-~-o-tolyl-truns-5-hydroxycyclo- hexanol-3,3,6,6-d4 (11) andtruns-2-o-tolyl-cis-4-hydroxycyclohexanol-3,3,6,6-d~ (HI) in deuterated chloroform, acetone-& methanol-&,
Deshielding effect on neighbouring protons on the esterification of a hydroxyl group
β Scribed by C.R. Narayanan; M.R. Sarma
- Publisher
- Elsevier Science
- Year
- 1968
- Tongue
- French
- Weight
- 211 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0040-4039
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## Abstract Longβrange ^1^Hο£Ώ^13^C coupling constants were measured for some simple, rigid model compounds containing hydroxyl, bromine or carbonyl groups. These were performed using the recently proposed selective __J__βresolved SPININEP and SDEPTβ2D experiments. The geminal and vicinal heteronucle
In PM2 epeotroaoopy,'the usual method to Identify the proton or protone on a carbon bearing a hydroxyl group IS to ac'etylate or In general eeterlfy the hydroxyl group, when the proton(e) oonoerhed move6 downfield by abQUt 0.5 to 1.5 r unit6 (1). Horerdr, thle procedure may not alram be oonvenlent,