Oxidative rearrangement of 2-spirochromanones: a novel route for the synthesis of tetrahydroxanthones
β Scribed by Om V. Singh; Randhir S. Kapil; Chandra P. Garg; Ram P. Kapoor
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- French
- Weight
- 100 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
Oxidative rearrangement of dihydronaphthofuran 5 with aqueous ceric ammonium nitrate afforded the cage compound 7 which decomposed to diol 8 upon standing at room temperature. An X-ray structure obtained for diol 8 confirmed the formation of this novel cage structure.
Pyrimidines are synthesized via a direct oxidative one-pot, three-component, reaction between a 1,3diketone, benzaldehydes and ammonium acetate in the presence of catalytic amounts of Keggin-type heteropolyacids under refluxing conditions in good yields.
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## Abstract A selective reduction and its subsequent cyclisation of novel isoxazolidines into Ξ³βlactams have been examined in presence of Raney β nickel catalyst.