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Acta Chimica Sinica ›› 1991, Vol. 49 ›› Issue (2): 187-192. Previous Articles Next Articles
Original Articles
刘有成;郭宏勋;刘中立
发布日期:
LIU YOUCHENG;GUO HONGXUN;LIU ZHONGLI
Published:
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Systematic study was performed on the oxidation of alcs. by twelve 2,2,6,6-tetramethylpiperidine oxoammonium salts I (R = H, MeO, Cl; X = Cl, BF4, ClO4, Br or Br3). All of these oxoammonium salts can oxidize primary alcs. to aldehydes and secondary alcs. to ketones with very high yield. The reactivity of the oxidants is related with both the 4-substituent and the counter-ion with the sequence of Cl > MeO > H for the salts with the same counter-ion and Cl- ?BF4- > ClO4- > Br- for the salts with the same 4-substituent. The selectivity of the oxidants is mainly determine by the counter-ions. The oxidant oxidizes preferably primary alcs. when the counter-ion is Cl-, but oxidizes secondary alcs. selectively when the counter-ions are BF4-, ClO4-, Br- or Br3-.
Key words: PIPERIDINE P, OXIDATION, SELECTIVITY, ACTIVITY, ALCOHOL
CLC Number:
O621
LIU YOUCHENG;GUO HONGXUN;LIU ZHONGLI. Reactivity and selectivity in the oxidation of alcohols by oxoammonium salts[J]. Acta Chimica Sinica, 1991, 49(2): 187-192.
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