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1.
N-Arylsulfonyl-2-halo-1,4-benzoquinone imines react with hydrazoic acid in boiling acetic acid via two pathways: the 1,4-addition and nucleophilic replacement of the halogen atom by an azido group, followed by the 1,4-addition of HN3. In the reaction of N-arylsulfonyl-2,6-dihalo-1,4-benzoquinone imines with hydrazoic acid, both halogen atoms are replaced by azido groups, while N-p-tolylsulfonyl-2-methyl-1,4-benzoquinone imine takes up HN3 molecule according to the 1,4-addition pattern. 相似文献
2.
A. P. Avdeenko S. A. Konovalova O. N. Ludchenko O. P. Ledeneva A. V. Vakulenko 《Russian Journal of Organic Chemistry》2011,47(2):214-229
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. 相似文献
3.
S. A. Konovalova A. P. Avdeenko V. V. Pirozhenko O. P. Ledeneva A. A. Santalova 《Russian Journal of Organic Chemistry》2014,50(9):1283-1291
N-Acetyl- and N-[1-(arylsulfonylimino)ethyl]-1,4-benzoquinone imines having no substituent in the 2- and/or 6-position of the quinoid ring react with sodium arenesulfinates preferentially according to the 1,4-addition pattern. The presence of an ArSO2N group favors radical ion reaction with formation of 1,6-addition products. 相似文献
4.
S. A. Konovalova A. P. Avdeenko V. M. Vasil’eva A. L. Yusina 《Russian Journal of Organic Chemistry》2014,50(10):1422-1429
The reaction of N-[aryl(phenoxy, benzylidene)acetyl]-1,4-benzoquinone imines with sodium 4-methylbenzenesulfinates takes different addition patterns, depending on the LUMO energy and charge distribution over the quinoid ring of the initial quinone imine. 相似文献
5.
A. P. Avdeenko S. A. Konovalova O. P. Ledeneva A. A. Santalova V. V. Pirozhenko G. V. Palamarchuk O. V. Shishkin 《Russian Journal of Organic Chemistry》2012,48(7):928-937
Despite steric hindrances created by the bulky substituent on the nitrogen atom, halogenation of 2,5-dialkyl-N-[arylsulfonylimino(phenyl)methyl]-1,4-benzoquinone monoimines fairly readily gives their derivatives having two halogen atoms in the quinoid ring. 相似文献
6.
N-[N-Arylsulfonylbenz(acet)imidoyl]-3,5-dimethyl-1,4-benzoquinonimines react with alcohols to give the corresponding adducts at the activated CÍN 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. 相似文献
7.
A. P. Avdeenko S. A. Konovalova A. A. Santalova 《Russian Journal of Organic Chemistry》2008,44(2):231-236
Advantages and shortcomings were discussed of three procedures for preparation N-arylsulfinyl-1,4-benzoquinone imines: the reaction of arenesulfenyl chlorides with 1,4-benzoquinone oximes, the oxidation of N-arylthio-1,4-benzoquinone imines, and the reaction of arylsulfinyl chlorides with p-aminophenols followed by oxidation. A series of new N-arylsulfinyl-1,4-benzoquinone imines was obtained. 相似文献
8.
A. P. Avdeenko S. A. Konovalova V. M. Vasil’eva O. V. Shishkin G. V. Palamarchuk V. N. Baumer 《Russian Journal of Organic Chemistry》2012,48(10):1309-1319
New N-aryl(phenoxy, benzylidene)acetyl-1,4-benzoquinone monoimines were synthesized by reaction of aminophenols with arylacetyl, phenoxyacetyl, and cinnamoyl chlorides in dimethylformamide-acetic acid (1: 3) in the presence of anhydrous sodium acetate. Structural parameters of the products and their probable biological activity were determined. 相似文献
9.
Avdeenko A. P. Marchenko I. L. Konovalova S. A. 《Russian Journal of Organic Chemistry》2002,38(4):546-552
The study of chlorination of N-(N-arylsulfonylarylimidoyl)-1,4-benzoquinone imines and of N-(N-arylsulfonylarylimidoyl)-1,4-aminophenols revealed that the dominant stage in the process was the formation of cyclohexene structures, 4-(N-arylsulfonylarylimidoyl)imino-2,5,6-trichloro-2-cyclohexene-1- ones, resulting from addition of a Cl2 molecule across the C = C bond of the quinoid ring. These substances suffer a prototropic rearrangements yielding N-(N-arylsulfonylarylimidoyl)-2,3,6-trichloro-4-aminophenols. The latter are the most common reaction products. The products of deeper chlorination were also obtained. 相似文献
10.
S. A. Konovalova A. P. Avdeenko O. P. Ledeneva A. L. Yusina V. V. Pirozhenko O. V. Shishkin G. V. Palamarchuk 《Russian Journal of Organic Chemistry》2014,50(5):635-646
N-[arylsulfonylimino(methyl)methyl] derivatives of 1,4-benzoquinone monoimine with alkyl substituents in the quinoid ring have been synthesized and their spectral characteristics were determined. The thiocyanation of N-aryl, N-acetyl, and N-[arylsulfonylimino(methyl)methyl] derivatives of 1,4-benzoquinone monoimine depending on the LUMO energy of the initial quinone monoamine affords derivatives of benzo[d][1,3]oxathiol-2-ones and benzo[d]oxazole-2(3H)-thiones. 相似文献
11.
Kozlov N. S. Mikhalevskaya S. V. Serzhanina V. A. 《Chemistry of Heterocyclic Compounds》1989,25(3):292-296
The reaction of 3-[N-(2-naphthyl)formimidoyl]pyridine with substituted acetophenones in the presence of a proton catalyst leads to 1-aryl-3-(3-pyridyl)benzo[f]quinolines. Noncyclic amino ketones — [1-aryl-3-(3-pyridyl)-3-(2-naphthylamino)]-1-propanones — precede the formation of the cyclic products. The IR, UV, PMR, and mass spectra of the synthesized compounds are discussed.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 351–354, March, 1989. 相似文献
12.
A. P. Avdeenko S. A. Konovalova A. G. Sergeeva G. V. Palamarchuk O. V. Shishkin 《Russian Journal of Organic Chemistry》2009,45(5):674-680
Reactions of N-alkyl(aryl)aminocarbonyl-3,5-dimethyl-1,4-benzoquinone monoimines with alcohols led to the formation of products of 1,2-addition, quinolide compounds. They are the final products in reactions with alkyl derivatives, but in event of aryl derivatives they underwent cyclization with the subsequent elimination of the alcohol molecule to provide 4,7a-dimethyl-1-aryl-7,7a-dihydro-1H-benzimidazole-2,6-diones. 相似文献
13.
14.
1 引 言树形分子是一类三维结构的新型有机配体 ,这类配体具有 2个或 2个以上可摆动的“臂”(饱和碳链 ) ,根据“臂”上所连的基团不同 ,可以与不同半径的金属离子配位 ,具有很高的选择性。三乙氨基胺类化合物是树型配体中的一类 ,该类配体与过渡金属离子形成的络合物可以作为选择性磁共振显影剂和超氧化物净氧剂。因而倍受化学研究者的关注。我们合成的新配体N ,N′,N″ (三苯甲酰 ) 三乙氨基胺 (TBOAA) ,在显色剂二甲酚橙中 ,pH =3 .2~ 5 .8之间能与Ni2 + 形成橙红色络合物 ,其检测Ni2 + 下限达到 8.5× 1 0 - 8mo… 相似文献
15.
A. P. Avdeenko S. A. Konovalova V. V. Pirozhenko O. P. Ledeneva A. A. Santalova 《Russian Journal of Organic Chemistry》2011,47(7):1035-1044
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. 相似文献
16.
17.
[N-(p-Toluenesulfonyl)imino]phenyliodinane reacts with enol silanes to provide α-tosylamino carbonyl compounds. 相似文献
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19.
S. A. Konovalova A. P. Avdeenko A. G. Sergeeva I. L. Marchenko 《Russian Journal of Organic Chemistry》2014,50(3):346-350
N-Arylcarbamoyl-1,4-benzoquinone imines reacted with sodium azide in completely regioselective fashion according to the 1,4-addition pattern with formation of 1-(3-azido-4-hydroxyphenyl)-3-arylureas. The reaction of N-arylcarbamoyl-2,6-dichloro-3,5-dimethyl-1,4-benzoquinone imines with sodium azide afforded N-arylcarbamoyl-2,6-diazido-3,5-dimethyl-1,4-benzoquinone imines as a result of nucleophilic substitution of the chlorine atoms. 相似文献