Aldehydes and ketones from mercaptals via oxidation
β Scribed by H. Nieuwenhuyse; R. Louw
- Book ID
- 104248352
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- French
- Weight
- 104 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
A recent report' on the preparation of aldehydes 2 from mercaptal S-oxides 'J ---via alkylation 3 of the carbanion of 2~' ---prompts us to communicate some pertinent data and views gained from our studies on disulfoxides and related compounds3.
We have observed that disulfoxides 1 ---in CHC13 upon treatment with HCl gas at 0 -20Β°C ---are rapidly converted into their carbonyl analogues 2 plus CH3SSCH3 and CH3S02SCH3. As chlorine is formed as an intermediate, the first step --involving oxidation of HCl ---is the conversion of 2 '"to 1 4
π SIMILAR VOLUMES
## Abstract Direct crossβcoupling reactions of aromatic aldehydes with arylboronic acids afforded ketones in high yields and under mild conditions in the presence of a rhodium catalyst, acetone and a base. This new reaction, involving a formal aldehyde Cο£ΏH bond activation, is believed to proceed __
Using a magnesium-Oppenauer oxidation aldehydes and ketones are prepared from halomagnesium alkoxides, which in turn are the products of Grignard reactions.