2000 protection, deprotection

protection, deprotectionO 0345

41 - 051CuCl2·2H2O–MeOH. A New Reagent System for the Deprotection ofTetrahydropyranyl Ethers. — A new method to cleave tetrahydropyranylethers, e.g. (I), to the corresponding alcohols is presented. Compared with thecurrent known reagents for the deprotection this method is easy, inexpensive andworks at ambient temperatures. The number of 17 given examples illustratesthe versatility of the described method. — (DAVIS, K. JOJU; BHALERAO,U. T.; RAO, B. VITTAL; Synth. Commun. 30 (2000) 13, 2301-2308; Org.Chem. Div., Indian Inst. Chem. Technol., Hyderabad 500 007, India; EN)

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