Hydrohalogenation of N-acetyl(aroyl)-1,4-benzoquinone monoimines
摘要:
New N-acetyl-1,4-benzoquinone monoimines alkyl-substituted in the quinoid ring were synthesized. The hydrohalogenation of N-acetyl(aroyl)-1,4-benzoquinone monoimines proceeds exclusively in keeping with the 1,4-addition. The hydrochlorination occurs along the ionic mechanism, in the hydrobromination grows the role of the radical mechanism.
Halogenation of N-substituted p-quinone monoimines and p-quinonemonooxime ethers: XII. Halogenation of N-aroyl-2(3)-methyl-1,4-benzoquinone monoimines and their reduced forms
作者:A. P. Avdeenko、S. A. Konovalova、O. N. Ludchenko
DOI:10.1134/s1070428010110035
日期:2010.11
A strong acceptor substituent at the nitrogen atom of the N-substituted p-quinone monoimine decreases the stability of the halogen-containing cyclohexene structures formed at the addition of a halogen molecule to the C=C bond of the quinoid ring. As a result of the bromination of N-benzoyl-2-methyl-1,4-benzoquinone monoimine alongside the usual products of addition and substitution the 5-benzoyloxy-2,3,6-tribromo-6-methylcyclohex-2ene-1,4-dione was isolated.
Hydrohalogenation of N-acetyl(aroyl)-1,4-benzoquinone monoimines
作者:A. P. Avdeenko、S. A. Konovalova、O. N. Ludchenko、O. P. Ledeneva、A. V. Vakulenko
DOI:10.1134/s1070428011020102
日期:2011.2
New N-acetyl-1,4-benzoquinone monoimines alkyl-substituted in the quinoid ring were synthesized. The hydrohalogenation of N-acetyl(aroyl)-1,4-benzoquinone monoimines proceeds exclusively in keeping with the 1,4-addition. The hydrochlorination occurs along the ionic mechanism, in the hydrobromination grows the role of the radical mechanism.