Synthesis of hydroindolenones and hydroquinolenones by hypervalent iodine oxidation of mono or bicyclic phenols
摘要:
Methoxy or fluoro hydroindolenones and hydroquinolenones can be obtained by oxidation of the corresponding 4-substituted open-chain phenols with C6H5-I-(OCOCF3)(2) with methanol or pyridinium polyhydrogen fluoride followed by an intramolecular conjugate addition. The corresponding cycle 2,5-hexadienones can be obtained directly by a similar oxidation of the bicyclic phenols. (C) 1999 Elsevier Science Ltd. All rights reserved.
Methoxy or fluoro hydroindolenones and hydroquinolenones can be obtained by oxidation of the corresponding 4-substituted open-chain phenols with C6H5-I-(OCOCF3)(2) with methanol or pyridinium polyhydrogen fluoride followed by an intramolecular conjugate addition. The corresponding cycle 2,5-hexadienones can be obtained directly by a similar oxidation of the bicyclic phenols. (C) 1999 Elsevier Science Ltd. All rights reserved.