Hypervalent iodine oxidation of N-acylhydrazones and N-phenylsemicarbazone: an efficient method for the synthesis of derivatives of 1,3,4-oxadiazoles and .DELTA.3-1,3,4-oxadiazolines
摘要:
The oxidation of ketone N-acylhydrazones 1 by phenyliodine(III) diacetate (PIDA) in alcohol gave 2-alkoxy-DELTA3-1,3,4-oxadiazolines 4 in excellent yields, while the oxidative cyclization of aldehyde N-acylhydrazone 2 by PIDA in methanolic sodium acetate gave 2,5-disubstituted 1,3,4-oxadiazoles in good yields. The oxidation of acetone 4-phenylsemicarbazone afforded 2-(N-phenylimino)-DELTA3-1,3,4-oxadiazoline in excellent yield.
Hypervalent iodine oxidation of N-acylhydrazones and N-phenylsemicarbazone: an efficient method for the synthesis of derivatives of 1,3,4-oxadiazoles and .DELTA.3-1,3,4-oxadiazolines
作者:Ruiyang Yang、Lixin Dai
DOI:10.1021/jo00064a027
日期:1993.6
The oxidation of ketone N-acylhydrazones 1 by phenyliodine(III) diacetate (PIDA) in alcohol gave 2-alkoxy-DELTA3-1,3,4-oxadiazolines 4 in excellent yields, while the oxidative cyclization of aldehyde N-acylhydrazone 2 by PIDA in methanolic sodium acetate gave 2,5-disubstituted 1,3,4-oxadiazoles in good yields. The oxidation of acetone 4-phenylsemicarbazone afforded 2-(N-phenylimino)-DELTA3-1,3,4-oxadiazoline in excellent yield.
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作者:Klein、Fuchs
DOI:——
日期:——
Huang, Xian; Zhu, Qing, Journal of Chemical Research - Part S, 2000, # 6, p. 300 - 301
作者:Huang, Xian、Zhu, Qing
DOI:——
日期:——
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