Hydrohalogenation of N-[arylsulfonylimino(phenyl)methyl]-1,4-benzoquinone monoimines having alkyl substituents in the quinoid ring
摘要:
Hydrohalogenation of N-[arylsulfonylimino(phenyl)methyl]-2,5(3,5)-dimethyl-1,4-benzoquinone monoimines follows exclusively the 1,4-addition pattern, whereas N-[arylsulfonylimino(phenyl)methyl]-2,6-dimethyl-1,4-benzoquinone monoimines take up hydrogen halides according to the 6,3-addition scheme.
Hydrohalogenation of N-[arylsulfonylimino(phenyl)methyl]-1,4-benzoquinone monoimines having alkyl substituents in the quinoid ring
摘要:
Hydrohalogenation of N-[arylsulfonylimino(phenyl)methyl]-2,5(3,5)-dimethyl-1,4-benzoquinone monoimines follows exclusively the 1,4-addition pattern, whereas N-[arylsulfonylimino(phenyl)methyl]-2,6-dimethyl-1,4-benzoquinone monoimines take up hydrogen halides according to the 6,3-addition scheme.
N-[N-Arylsulfonylbenz(acet)imidoyl]-3,5-dimethyl-1,4-benzoquinonimines react with alcohols to give the corresponding adducts at the activated C=N bond. The adducts lose alcohol molecule on heating to afford initial quinonimines. Hydrolysis of the title compounds leads to formation of the corresponding quinones and N-arylsulfonylamidines.
Thiocyanation of N-arylsulfonyl-, N-aroyl-, and N-[(N-arylsulfonyl)benzimidoyl]-1,4-benzoquinone imines
作者:A. P. Avdeenko、V. V. Pirozhenko、S. A. Konovalov、D. A. Roman’kov、G. V. Palamarchuk、O. V. Shishkinc
DOI:10.1134/s1070428009030105
日期:2009.3
Reactions of thiocyanate ion with N-aroyl-, N-arylsulfonyl-, and N-(N-arylsulfonylbenzimidoyl)-1,4-benzoquinone imines follow the 1,4-addition pattern, and the adducts undergo intramolecular cyclization to give the corresponding N-substituted 5-amino-1,3-benzoxathiol-2-ones as final products.
Reactions of N-substituted 2,6(3,5)-dialkyl-1,4-benzoquinone imines with arenesulfinic acids
作者:A. P. Avdeenko、S. A. Konovalova、D. A. Roman’kov、K. S. Burmistrov、V. M. Nichvoloda、O. V. Shishkin、R. I. Zubatyuk、G. V. Palamarchuk
DOI:10.1134/s1070428009010084
日期:2009.1
The regioselectivity in the reactions of N-arylsulfonyl-2,6-dialkyl-1,4-benzoquinone imines with arenesulfinic acids (1,6-, 6,1-, or 6,3-addition) is determined by steric factor, while in the reactions of N-aroyl-1,4-benzoquinone imines electronic effect of substituents in the quinoid ring is crucial. The reactions of N-arylsulfonyl-3,5-dimethyl-1,4-benzoquinone imines with arenesulfinic acids follow mainly the 1,4-addition pattern. N-(N-Arylsulfonylbenzimidoyl)-1,4-benzoquinone imines are capable of reacting in a way similar to both N-arylsulfonyl and N-aroyl derivatives.
Hydrohalogenation of N-[arylsulfonylimino(phenyl)methyl]-1,4-benzoquinone monoimines having alkyl substituents in the quinoid ring
作者:A. P. Avdeenko、S. A. Konovalova、V. V. Pirozhenko、O. P. Ledeneva、A. A. Santalova
DOI:10.1134/s1070428011070116
日期:2011.7
Hydrohalogenation of N-[arylsulfonylimino(phenyl)methyl]-2,5(3,5)-dimethyl-1,4-benzoquinone monoimines follows exclusively the 1,4-addition pattern, whereas N-[arylsulfonylimino(phenyl)methyl]-2,6-dimethyl-1,4-benzoquinone monoimines take up hydrogen halides according to the 6,3-addition scheme.
Halogenation of N′-(Arenesulfonyl)-N-[2,6(3,5)-dialkyl-4-oxocyclohexa-2,5-dien-1-ylidene]benzenecarboximidamides and Their Reduction Products
作者:A. P. Avdeenko、S. A. Konovalova、S. V. Shishkina