a b s t r a c tSonochemical oxidation of benzyl alcohols into corresponding aldehydes by FeCl 3 /HNO 3 in acetone at room temperature has been reported. All substrates give good yield of the products within 10-25 min. The reaction of selected substrates were also studied under reflux and at the room temperature. Further, various Lewis acids were used to evaluate their catalytic efficacy.

A mixture of DMSO, NaNO 2 , and 49% HBr is found to oxidize primary benzyl amines to benzoic acids at 1008C.

Dimethylsulfoxide (DMSO) oxidizes benzyl ethers into corresponding benzaldehydes at 1108C; the reaction is accelerated by 49% aq. HBr. The conditions work well for different aryl-substituted benzyl ethers. This protocol is inert toward dialkyl ethers.

No abstract

Deprotection O 0345 Ultrasound Promoted Deoximation by FeCl 3 : A Highly Efficient, Mild and Expeditious Approach. -A mild, convenient and cost-efficient method for the deoximation of aldoximes and ketoximes (I) using ultrasound is reported here. -(NAIK, R.; PASHA*, M. A.; Indian J. Chem., Sect. B: Org. Chem. Incl. Med. Chem. 44 (2005) 4, 778-782; Dep. Stud. Chem., Cent. Coll., Bangalore Univ., Bangalore 560 001, India; Eng.) -C. Oppel 33-071