Issue 7, 1988

Intermolecular thermal reaction of arylnitrenes with furans

Abstract

4-Methoxy-, 4-chloro-, and 4-nitro-phenylnitrenes have been thermally generated by decomposition of the corresponding aryl azides in the presence of furan and a series of 2-substituted and 2,5-disubstituted furans. 4-Nitrophenylnitrene has been shown to be capable of undergoing electrophilic addition to the furan ring both at the α- and β-position, whereas only evidence of α-attack has been provided by 4-chlorophenylnitrene. On the other hand, no evidence of electrophilic attack has been obtained with 4-methoxyphenylnitrene, which affords only products ascribable to the triplet nitrene. The formation of a number of products ultimately resulting from nitrene attack at the α-position of the furan ring followed by a ring-opening process and the general occurrence of 1-(4-nitrophenyl)- and 1-(4-chlorophenyl)-1,2,3 triazole from thermolysis of 4-nitro- or 4-chloro-phenyl azide in the presence of the furans examined is discussed.

Article information

Article type
Paper

J. Chem. Soc., Perkin Trans. 1, 1988, 1859-1863

Intermolecular thermal reaction of arylnitrenes with furans

L. Benati, P. C. Montevecchi, M. Toselli and P. Spagnolo, J. Chem. Soc., Perkin Trans. 1, 1988, 1859 DOI: 10.1039/P19880001859

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