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Nitrogen configuration determined by X-ray analysis on an homogeneous series of 3-Indolinones

✍ Scribed by Patricia Carloni; Lucedio Greci; Pierluigi Stipa; Daniele Cauzzi; Corrado Rizzoli; Paolo Sgarabotto


Book ID
112131429
Publisher
Journal of Heterocyclic Chemistry
Year
1996
Tongue
English
Weight
295 KB
Volume
33
Category
Article
ISSN
0022-152X

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Asymmetric oxidation and determination o
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I , 9-Bis(methylthio)dibenzothiophene (la) was treated with one equivalent of bromine and pyridine i n the presence of 1-menthol and then with aqueous sodium hydroxide to give optically active I-(methylsulfinyl)-9-(methy1thio)dibenzothiophene (2a) enriched by the S isomer (ee: 57%). The configuratio