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Mechanism of cyclopentene-1-carboxaldehyde formation by ring contraction of 2,3-epoxycyclohexanols. Improved synthetic procedures

✍ Scribed by Bergman, Rolf; Magnusson, Goeran


Book ID
127337136
Publisher
American Chemical Society
Year
1986
Tongue
English
Weight
805 KB
Volume
51
Category
Article
ISSN
0022-3263

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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