A one-pot synthesis of functionalized 2,2-disubstituted 2H-1-benzopyrans
β Scribed by Janine Cossy; Haja Rakotoarisoa; Philippe Kahn; Jean-Roger Desmurs
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 203 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
The reactions of ketones 1a -o, nitromethane 2, and a stoichiometric amount of piperidine 3a or ethylenediamine 3b in the presence of mercaptan 6a in THF or CH 3 CN solution give high yields of b-nitrosulfides 7a -o. The latter can be oxidized by 8a (m-CPBA or m-CPBA/AcOH) at 08C, 8b (H 2 O 2 /AcOH)
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