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An Efficient Procedure for the Mild Oxidative Cleavage of Alkene-3-Ols: Application to the Preparation of 2-Alkoxy-2-(3,4,5-Trimethoxyphenyl)- Acetaldehyde

✍ Scribed by Marino, J. P.; Jaén, Juan C.


Book ID
126547931
Publisher
Taylor and Francis Group
Year
1983
Tongue
English
Weight
307 KB
Volume
13
Category
Article
ISSN
0039-7911

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## Abstract Reaction of 2,4‐diaryl‐2,3‐dihydro‐1,5‐benzothiazepines 1 with a mixture of acetic anhydride and pyridine afforded 3‐acetyl‐2,3‐dihydrobenzothiazoles 2 as sole products in good yields. Stereochemistry and the hindered rotation of the amide group were studied by means of NMR spectroscopy