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1.
P. S. Silaichev N. V. Kudrevatykh P. A. Slepukhin A. N. Maslivets 《Russian Journal of Organic Chemistry》2013,49(6):860-863
4,5-Diaroyl-1-aryl-1H-pyrrole-2,3-diones reacted with ethyl 3-amino-3-phenylprop-2-enoate to give ethyl 4-aroyl-1,6-diaryl-3-hydroxy-2-oxo-8-phenyl-1,7-diazaspiro[4.4]nona-3,6,8-triene-9-carboxylates. The crystalline and molecular structures of ethyl 4-benzoyl-3-hydroxy-1-(4-methylphenyl)-2-oxo-6,8-diphenyl-1,7-diazaspiro[4.4]nona-3,6,8-triene-9-carboxylate were determined by X-ray analysis. 相似文献
2.
A. Yu. Dubovtsev P. S. Silaichev M. A. Zheleznova Z. G. Aliev A. N. Maslivets 《Russian Journal of Organic Chemistry》2016,52(12):1779-1783
Substituted alkyl 4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with urea to give alkyl 2-(carbamoylamino)-4-hydroxy-5-oxo-2,5-dihydro-1H-pyrrole-2-carboxylates which underwent intramolecular cyclization to 8-hydroxy-1,3,6-triazaspiro[4.4]non-8-ene-2,4,7-triones by the action of sodium methoxide. 相似文献
3.
E. S. Denislamova A. Yu. Dubovtsev P. A. Slepukhin A. N. Maslivets 《Russian Journal of Organic Chemistry》2014,50(7):1017-1021
Methyl 1-aryl-3-aroyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with methyl 2-arylamino-4-(2-naphthyl)-4-oxobut-2-enoates to give methyl 1,7-diaryl-4-aroyl-3-hydroxy-9-(2-naphthalen-2-ylcarbonyl)-2,6-dioxo-1,7-diazaspiro[4.4]nona-3,8-diene-8-carboxylates. 相似文献
4.
Methyl 3-aroyl-1-aryl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with 3-amino-5,5-dimethylcyclohex-2-en-1-one having no substituent on the nitrogen atom to give 3-aroyl-4-arylamino-6′,6′-dimethyl-6′,7′-dihydro-5H-spiro[furan-2,3′-indole]-2′,4′,5′(1′H,5′H)-triones or methyl 12-aroyl-11-aryl-9-hydroxy-5,5-dimethyl-3,10-dioxo-8,11-diazatricyclo[7.2.1.02,7]dodec-2(7)-ene-1-carboxylates. The latter underwent thermal recyclization to 3′-aroyl-1′-aryl-4′-hydroxy-6,6-dimethyl-6,7-dihydrospiro[indole-3,2′-pyrrole]-2,4,5′(1H,1′H,5H)-triones. 相似文献
5.
Yu. N. Bannikova E. A. Sedegova V. V. Khalturina A. N. Maslivets 《Russian Journal of Organic Chemistry》2007,43(9):1338-1341
Methyl 1-aryl-3-aroyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with ethyl 3-aryl-aminobut-2-enoates to give the corresponding ethyl 1,7-diaryl-4-aroyl-3-hydroxy-8-methyl-2,6-dioxo-1,7-diazaspiro[4.4]nona-3,8-diene-9-carboxylates. 相似文献
6.
A. P. Molchanov A. V. Stepakov R. R. Kostikov 《Russian Journal of Organic Chemistry》2005,41(1):75-86
Halogenation of 1-substituted 7-aryl-2,3,7-triazabicyclo[3.3.0]oct-2-ene-6,8-diones gives different products, depending on the substituent in position 1 (R1): when R1 = Ar, 6-chloro-3-azabicyclo[3.1.0]hexanes are formed, while compounds with R1 = H or Me give rise to 2- or 4-chloro-2,3,7-triazabicyclo[3.3.0]oct-2-ene-6,8-diones whose thermolysis leads to formation of the corresponding 6-chloro-3-azabicyclo[3.1.0]hexanes. Chlorination of 7-aryl-1,2,7-triazaspiro[4.4]non-1-ene-6,8-diones yields 3-chloro-1,2,7-triazaspiro[4.4]non-1-ene-6,8-diones, and thermolysis of the latter affords 1-chloro-5-azaspiro[2.4]heptanes.__________Translated from Zhurnal Organicheskoi Khimii, Vol. 41, No. 1, 2005, pp. 78–88.Original Russian Text Copyright © 2005 by Molchanov, Stepakov, Kostikov. 相似文献
7.
N. L. Racheva Z. G. Aliev A. N. Maslivets 《Russian Journal of Organic Chemistry》2008,44(8):1184-1188
3-Aroyl-1H-pyrrolo[2,1-c][1,4]benzoxazine-1,2,4-triones react with methyl 4-aryl-2-arylamino-4-oxobut-2-enoate to give substituted methyl 7-aryl-4,9-bis(aroyl)-3-hydroxy-1-(2-hydroxyphenyl)-2,6-dioxo-1,7-diazaspiro[4.4]nona-3,8-diene-8-carboxylates
which undergo thermal cyclization to methyl 9-aroyl-4,7-diaryl-1-(2-hydroxyphenyl)-2,3,8-trioxo-2,3,7,8-tetrahydro-1H,6H-6,8a-methanopyrrolo[2,3-e][1,3]oxazepine-6-carboxylates. The crystalline and molecular structures of methyl 9-benzoyl-1-(2-hydroxyphenyl)-2,3,8-trioxo-4,7-diphenyl-2,3,7,8-tetrahydro-1H,6H-6,8a-methanopyrrolo[2,3-e][1,3]oxazepine-6-carboxylate was studied by X-ray analysis.
Original Russian Text ? N.L. Racheva, Z.G. Aliev, A.N. Maslivets, 2008, published in Zhurnal Organicheskoi Khimii, 2008, Vol.
44, No. 8, pp. 1197–1201.
For communication LX, see [1]. 相似文献
8.
P. S. Silaichev V. O. Filimonov P. A. Slepukhin A. N. Maslivets 《Russian Journal of Organic Chemistry》2012,48(10):1329-1332
Methyl 1-aryl-3-cinnamoyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with 4-benzylamino- and 4-arylaminopent-3-en-2-ones to give 1-aryl-7-benzyl- and 1,7-diaryl-9-acetyl-4-cinnamoyl-3-hydroxy-8-methyl-1,7-diazaspiro[4.4]nona-3,8-diene-2,6-diones. The crystalline and molecular structures of 9-acetyl-4-cinnamoyl-3-hydroxy-1-(4-methoxyphenyl)-8-methyl-7-phenyl-1,7-diazaspiro[4.4]nona-3,8-diene-2,6-dione were studied by X-ray analysis. 相似文献
9.
E. S. Denislamova N. V. Bubnov A. N. Maslivets 《Russian Journal of Organic Chemistry》2011,47(6):933-936
Methyl 1-aryl-3-benzoyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with 6-amino-1,3-dimethylpyrimidine-2,4(1H,3H)-dione to give methyl 11-aryl-12-benzoyl-9-hydroxy-4,6-dimethyl-3,5,10-trioxo-4,6,8,11-tetraazatricyclo[7.2.1.02,7]dodec-2(7)-ene-1-carboxylates which underwent thermal recyclization to 1-aryl-3-benzoyl-4-hydroxy-1′,3′-dimethylspiro[pyrrole-2,5′-pyrrolo[2,3-d]pyrimidine]-2′,4′,5,6′(1H,1′H,3′H,7′H)-tetraones. 相似文献
10.
A. P. Molchanov A. V. Stepakov R. R. Kostikov 《Russian Journal of Organic Chemistry》2004,40(10):1512-1517
N-Nitroso-4,5-dihydropyrazoles obtained from ethyl(methyl) 5-aryl-4,6-dioxo-1,3a, 4,5,6,6a-hexahydropyrrolo[3,4-c]pyrazole-3-carboxylates and ethyl(methyl) 7-aryl-6,8-dioxo-1,2,7- triazaspiro[4.4]non-2-ene-3-carboxylates eliminate nitrogen molecule on heating to afford the corresponding 4,5-dihydroisoxazole derivatives.Translated from Zhurnal Organicheskoi Khimii, Vol. 40, No. 10, 2004, pp. 1561–1565.Original Russian Text Copyright © 2004 by Molchanov, Stepakov, Kostikov. 相似文献
11.
Yu. N. Bannikova Yu. S. Rozhkova Yu. V. Shklyaev A. N. Maslivets 《Russian Journal of Organic Chemistry》2008,44(5):697-700
Methyl 1-aryl-3-aroyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with substituted 1-methyl-3,4-dihydroisoquinolines with the formation of substituted 3-oxo-2,3,5,6-tetra-hydropyrrolo[2,1-a]-isoquinoline-2-spiro-2′-(1-aryl-3-aroyl-4-hydroxy-5-oxo-2,5-dihydro-1H-pyrroles). A new approach was developed to the synthesis of 13-azagonanes, substituted benzo[f]pyrrolo[2,1-a]isoquinoline-9-spiro-2′-pyrroles. 相似文献
12.
Molchanov A. P. Stepakov A. V. Kostikov R. R. 《Russian Journal of Organic Chemistry》2002,38(2):264-268
Methyl diazoacetate regioselectively adds to N-substituted imides of itaconic acid to afford 2-pyrazolines, methyl 7-aryl-6,8-dioxo-1,2,7-triazaspiro[4.4]non-2-ene-3-carboxylates that in reaction with halogens (Cl2, Br2) yield methyl 5-aryl-1-halo-4,6-dioxo-5-azaspiro[2.4]heptane-1-carboxylates as a mixture of syn- and anti-isomers. 相似文献
13.
S. V. Fedoseev K. V. Lipin O. V. Ershov M. Yu. Belikov V. A. Tafeenko 《Russian Journal of Organic Chemistry》2016,52(11):1606-1609
A method of synthesis of 9-alkyl-8-methyl-8-methoxy-1,3,6-trioxo-2,7-diazaspiro[4.4]nonane-4-carbonitriles consisting in the reaction of 3-amino-8-hydroxy-1,6-dioxo-2,7-diazaspiro[4.4]non-3-ene-4-carbonitriles with methanol in the presence of sulfuric acid was developed. 相似文献
14.
Marko kof Jurij Svete Branko Stanovnik Ljubo Goli
Simona Goli
-Grdadolnik Lovro Seli
《Helvetica chimica acta》1998,81(12):2332-2340
(5S)-1-Benzoyl-3-[(E)-cyanomethylidene]-5-(methoxycarbonyl)pyrrolidin-2-one ( 5 ) was prepared in four steps from L -pyroglutamic acid ( 1 ). 1,3-Dipolar cycloadditions of diazomethane ( 6 ) and 2,4,6-trimethoxybenzonitrile oxide ( 7 ) gave substituted 1,2,7-triazaspiro[4.4]non-1-en-6-one 12 and 1-oxa-2,7-diazaspiro[4,4]non-1-en-6-one 13 in 38 and 20% de, respectively. On the other hand, reaction of 5 with N-phenylbenzonitrile imines 8 and 9 , generated in situ from the corresponding hydrazonoyl chlorides 10 and 11 , respectively, and Et3N, furnished racemic pyrrolo[3,4-c]pyrazoles 14 and 15 in 61 and 56% de, respectively. Cycloaddition of nitrile oxide 7 , when performed in the presence of Et3N, led to pyrrolo[3,4-d]isoxazole 16 in 85% de. 相似文献
15.
P. S. Silaichev M. A. Chudinova P. A. Slepukhin A. N. Maslivets 《Russian Journal of Organic Chemistry》2012,48(11):1435-1438
1-Aryl-4,5-bis(methoxycarbonyl)-1H-pyrrole-2,3-diones react with ethyl 3-(benzylamino)but-2-enoate and ethyl 3-(benzylamino)-3-phenylacrylate giving 4-methyl 9-ethyl 1-aryl-7-benzyl-3-hydroxy-8-methyl- and 4-methyl 9-ethyl 1-aryl-7-benzyl-3-hydroxy-8-phenyl-2,6-dioxo-1,7-diazaspiro[4.4]nona-3,8-diene-4,9-dicarboxylates. 相似文献
16.
P. S. Silaichev Yu. G. Stepanyan N. V. Kudrevatykh A. N. Maslivets 《Russian Journal of Organic Chemistry》2014,50(6):843-845
1-Aryl-4,5-diaroyl-1H-pyrrole-2,3-diones reacted with 3-aminobut-2-enenitrile to produce 1,6-diaryl-4-aroyl-3-hydroxy-8-methyl-2-oxo-1,7-diazaspiro[4.4]nona-3,6,8-triene-9-carbonitriles. 相似文献
17.
L. V. Andriyankova S. A. Zhivet'ev A. G. Mal'kina M. A. Andriyankov A. V. Afonin B. A. Trofimov 《Chemistry of Heterocyclic Compounds》2002,38(8):974-980
The reaction of 2,3-dimercaptoquinoxaline with 3-phenyl-2-propynonitrile (~10 mass % KOH, 20-25°C, 5 h, dioxane) gave the S,S-diadduct (as with unsubstituted acetylene). 2,3-Dimercaptoquinoxaline reacted with 4-alkyl-4-hydroxy-2-alkynonitriles to give 2-cyanomethyl-2-(1-hydroxy-1-alkyl)-1,3-dioxolano[4,5-b]quinoxalines or 3-cyanomethylene-8-imino-2,2,6,6-tetramethyl-1,7-dioxa-4-thiaspiro[4.4]nonane. 相似文献
18.
A. Yu. Dubovtsev A. A. Moroz M. V. Dmitriev A. N. Maslivets 《Russian Journal of Organic Chemistry》2016,52(4):546-552
Methyl 3-aroyl-1-aryl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with arylhydrazines to give methyl 3-aroyl-1-aryl-2-(2-arylhydrazinyl)-4-hydroxy-5-oxo-2,5-dihydro-1H-pyrrole-2-carboxylates which underwent thermal recyclization into isomeric methyl 1-aryl-5-(arylcarbamoyl)-4-aroyl-1H-pyrazole- 3-carboxylates and methyl 1,5-diaryl-4-[2-oxo-2-(arylamino)acetyl]-1H-pyrazole-3-carboxylates. 相似文献
19.
P. S. Silaichev M. V. Dmitriev Z. G. Aliev A. N. Maslivets 《Russian Journal of Organic Chemistry》2010,46(2):255-259
Reactions of isopropyl 2-(1-aryl-4,5-dioxo-2-phenyl-4,5-dihydro-1H-pyrrol-3-yl)-2-oxoacetates with aromatic amines involve a pyrroledione-pyrroledione recyclization to form isopropyl 1-aryl-2-hydroxy-4,5-dioxo-3-[phenyl(arylamino)methylene]pyrrolidine-2-carboxylates.
The crystal and molecular structure of (Z)-isopropyl 2-hydroxy-4,5-dioxo-1-phenyl-3-[phenyl(phenylamino)methylene]pyrrolidine-2-carboxylate was proved by XRD analysis. 相似文献
20.
N,N-Dimethylazidochloromethyleniminium chloride (azidophosgeniminium chloride) ( 1 ) reacts by diazo group transfer with 1,3-dimethyl-4-aryl-(and alkyl)aminouracils 4 to give, under mild “one pot” reaction conditions, a very good yield of 3-aryl-(and 3-alkyl)-4,6-dimethyl-5,7-dioxo-1,2,3-triazolo[4,5-d]pyrimidines (8-azatheophyllines) 8 . That reaction proceeds, very likely, through formation of non-isolated 4-imino-5-diazouracils 6 . 相似文献