A novel and practical cuprous bromide-catalyzed aerobic oxidation of benzylic alcohols with 1,8-diazabicyclo-[5.4.0]undec-7-ene(DBU) as the additive under air atmosphere has been developed. Various primary and secondary benzylic alcohols and allylic alcohols were smoothly transformed into the corresponding aldehydes and ketones with high yields and selectivity. The process is 2,2,6,6-tetramethylpiperidin-1-oxyl(TEMPO) free and solvent-free.
【更新日期】
2019-01-23
【分类号】
O621.251
【正文快照】
1 IntroductionThe oxidations of alcohols are the most basic reactionsin classical organic processes.[1] The classical methodolo-gies are based on the stoichiometric use of oxidants, suchas Mn O2, chromium salts, and Dess-Martin reagent,[2]however, these p
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