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1.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Shchepin V. V., Silaichev P. S., Racitin A. R., Kodess M. I.
Заглавие : Synthesis of 8-R-9c-alkyl-1-aryl-2-benzyl-1-hydroxy-1,2,9b,9c-tetrahydro-5-oxa-2-aza-cyclopenta[2,3]cyclopropa[1,2-a]naphthalene-3,4-diones and reaction thereof with acetic anhydride
Место публикации : Tetrahedron Letters. - 2006. - Vol. 47, № 4. - С. 557-560
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of zinc enolates synthesized from 1-aryl-2,2-dibromoalkanones and zinc with 6-R-2-oxochromene-3-carboxylic acid N-benzylamide affords 8-R-9c-alkyl-1-aryl-2-benzyl-1-hydroxy-1,2,9b,9c-tetrahydro-5-oxa-2-aza-cyclopenta[2,3]cyclopropa[1,2-a]naphthalene-3,4-diones. Acylation of these compounds is accompanied by an unexpected rearrangement producing a sole geometrical isomer of 4?-alkyl-5?-aryl-1?-benzyl-3,4,2?,3?-tetrahydro-2,2?-dioxospiro[chroman-3,3?-pyrrol]-4-yl acetates
\\\\Expert2\\nbo\\Tetrahedron Letters\\2006, v. 47, p.557.pdf
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2.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Shchepin V. V., Kalyuzhnyi M.M., Silaichev P. S., Ezhikova M. A., Kodess M. I.
Заглавие : Reactions of zinc enolates derived from 1-aryl-2,2-di-bromoalkanones with 2-acyl-3H-benzo[f]chromen-3-ones, 6-bromo-2-oxochromene-3-carboxamides, and 3-oxo-3H-benzo-[f]chromene-2-carboxamides [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2004. - Vol. 40, № 9. - С. 1353-1358
Систем. требования: http://www.springerlink.com/content/jr3x59p4608g1k26/fulltext.pdf
Примечания : 31.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Zinc enolates derived from substituted 1-aryl-2,2-dibromoalkanones reacted with 2-acyl-3H-benzo-[f]chromen-3-ones to give 1-alkyl-1-aroyl-1a-acyl-1a, 9c-dihydro-1H-3-oxacyclopropa[c]phenanthren-2-ones which were formed as a single stereoisomer. Reactions of the same zinc enolates with 6-bromo-2-oxo-chromene-3-carboxamides (piperidides and morpholides) afforded 1-aroyl-6-bromo-1-alkyl-1a-piperidino-(morpholino)carbonyl-1a,7b-dihydrocyclopropa[c]chromen-2-ones with high stereoselectivity. Likewise, 1-benzoyl-1-methyl-1a-morpholinocarbonyl-1a, 9c-dihydro-1H-3-oxacyclopropa[c]phenanthren-2-one was obtained by reac-tion with 3-oxo-3H-benzo[f]chromene-2-carboxylic acid morpholide
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2004, 40 (9), 1353.pdf
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3.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Shchepin V. V., Stepanyan Yu.G., Silaichev P. S., Kodess M. I.
Заглавие : Reaction of organozinc reagents formed in reaction of dibromomalonic acid dialkyl esters and zinc, with 2-arylmethylenemalonic acid dinitriles and 3-aryl-2-cyanopropenoic acid methyl esters [Electronic resource]
Место публикации : Russian Journal of General Chemistry. - 2006. - Vol. 76, № 12. - С. 1919-1921
Систем. требования: http://www.springerlink.com/content/n442273h646k774w/fulltext.pdf
Примечания : 17.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Organozinc compounds, obtained from dibromomalonic acid dialkyl esters and zinc, react with 2-arylmethylmalonic acid dinitriles and 3-aryl-2-cyanopropenoic acid methyl esters forming 3-aryl-2,2-dicyanocyclopropane-1,1-dicarboxylic acid dialkyl esters and 3-aryl-2-cyanocyclopropane-1,1,2-tricarboxylic acid trimethyl esters
\\\\Expert2\\nbo\\Russian Journal of General Chemistry\\2006, V. 76, N 12, p.1919.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Shchepin V. V., Korzun A.E., Vakhrin M.I., Silaichev P. S., Ezhikova M. A., Kodess M. I.
Заглавие : Reactions of zinc enolates derived from 1-aryl-2-bromo-2-phenylethanone and 2-bromoindan-1-one with alkyl 2-oxochromene-and 6-bromo-2-oxochromene-3-carboxylates [Electronic resource]
Место публикации : Russian Journal of General Chemistry. - 2006. - Vol. 76, № 5. - С. 777-780
Систем. требования: http://www.springerlink.com/content/r0200p2383148853/fulltext.pdf
Примечания : 17.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Zinc enolates derived from 1-aryl-2-bromo-2-phenylethanone react with alkyl 2-oxochromene-3-carboxylates and methyl 6-bromo-2-oxochromene-3-carboxylate to give, respectively, alkyl 4-(2-aryl-2-oxo-1-phenylethyl)-2-oxochroman-3-carboxylates and methyl 6-bromo-4-(2-aryl-2-oxo-1-phenylethyl)-2-oxochroman-3-carboxylate as a single stereoisomer. Zinc enolates derived from 2-bromoindan-1-one react with alkyl 2-oxochromene-3-carboxylates to give alkyl 2-oxo-4-(1-oxoindan-2-yl)chroman-3-carboxylates as a single stereoisomer
\\\\Expert2\\nbo\\Russian Journal of General Chemistry\\2006, V. 76, N 5, p.777.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 54/C 98
Автор(ы) : Shchepin V. V., Silaichev P. S., Shchepin R.V., Ezhikova M. A., Kodess M. I.
Заглавие : Cyclopropanation of N-Substituted 2-Oxochromene- and 6-Bromo-2-oxochromene-3-carboxamides with Zinc Enolates Derived from 1-Aryl-2,2-dibromoalkanones [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2005. - Vol. 41, № 4. - С. 527-534
Систем. требования: http://www.springerlink.com/content/t64r8082010l8686/fulltext.pdf
Примечания : 31.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Zinc enolates derived from 1-aryl-2,2-dibromoalkanones react with N-cyclohexyl-2-oxochromene-3-carboxamides to give N-cyclohexyl-1-alkyl-1-aroyl-2-oxo-1a,7b-dihydrocyclopropa[c]chromene-1a-carboxamides mainly as cis isomers with respect to the substituents in positions 1 and 1a. Reactions of the same zinc enolates with N-benzyl-2-oxochromene-3-carboxamide and N-benzyl-6-bromo-2-oxochromene-3-carboxamide lead to formation of 1-aryl-2-benzyl- and 1-aryl-2-benzyl-6-bromo-1-hydroxy-9c-alkyl-1,2,9b,9c-tetrahydro-5-oxa-2-azacyclopenta[2,3]cyclopropa[1,2-a]naphthalene-3,4-diones. The reaction of zinc enolates with N-aryl-2-oxochromene-3-carboxamides in a weakly polar solvent (diethyl ether or ethyl acetate) affords mixtures of cis-N-aryl-1-aroyl-1-alkyl-2-oxo-1a,7b-dihydrocyclopropa[c]chromene-1a-carboxamides and their cyclic isomers, 9c-alkyl-1,2-diaryl-1-hydroxy-1,2,9b,9c-tetrahydro-5-oxa-2-azacyclopenta[2,3]cyclopropa[1,2-a]naphthalene-3,4-diones, the latter prevailing. N-Substituted 1-alkyl-1-aroyl-2-oxo-1a,7b-dihydrocyclopropa[c]chromene-1a-carboxamides in which the aroyl group on C1 and the carboxamide group on C1a are arranged trans are formed by reactions of zinc enolates with the corresponding 2-oxochromene-3-carboxamides in the presence of hexamethylphosphoric triamide
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2005, 41 (4), 527.pdf
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6.

Вид документа : Статья из журнала
Шифр издания : 54/S 53
Автор(ы) : Shchepin V. V.
Заглавие : Reaction of zinc enolates prepared from 2,2-dibromoindan-1-one or 2,2-dibromo-1-tetralone and zinc with 2-oxochromen-3-carboxylic acid derivatives [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2007. - Vol. 43, № 10. - С. 1441-1445
Систем. требования: http://www.springerlink.com/content/l754q27352n53h26/fulltext.pdf
Примечания : 1.11.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2007, 43 (10), 1441.pdf
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7.

Вид документа : Статья из журнала
Шифр издания : 54/C 98
Автор(ы) : Shchepin V. V., Stepanyan Yu.G., Silaichev P. S., Ezhikova M. A., Kodess M. I.
Заглавие : Cyclopropanation of 2-arylmethylidenemalononitriles, alkyl 3-aryl-2-cyanoprop-2-enoates, and N-substituted 3-aryl-2-cyanoprop-2-enamides with bromine-containing zinc enolates [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2007. - Vol. 43, № 7. - С. 1002-1007
Систем. требования: http://www.springerlink.com/content/h223241780n612p1/fulltext.pdf
Примечания : 1.11.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Zinc enolates derived from 2,2-dibromoindan-1-one and 2,2-dibromo-1,2,3,4-tetrahydronaphthalen-1-one reacted with 2-arylmethylidenemalononitriles, alkyl 3-aryl-2-cyanoprop-2-enoates, and N-substituted 3-aryl-2-cyanoprop-2-enamides to give, respectively, 3-aryl-1?-oxo-1?,3?-dihydrospiro[cyclopropane-1,2?-indene]-2-2-dicarbonitriles, 3-aryl-1?-oxo-3?,4?-dihydro-1?H-spiro[cyclopropane-1,2?-naphthalene]-2,2-dicarbonitriles, alkyl 3-aryl-2-cyano-1?-oxo-1?,3?-dihydrospiro[cyclopropane-1,2?-indene]-2-carboxylates, alkyl 3-aryl-2-cyano-1?-oxo-3?,4?-dihydro-1?H-spiro[cyclopropane-1,2?-naphthalene]-2-carboxylates, and N-substituted 3-aryl-2-cyanol-1?-oxo-3?,4?-dihydro-1?H-spiro[cyclopropane-1,2?-naphthalene]-2-carboxamides as a single diastereoisomer. The stereoconfiguration of the products was determined by 1H and 13C NMR spectroscopy
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2007, 43 (7), 1002.pdf
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8.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Shchepin V. V., Silaichev P. S., Stepanyan Yu.G., Russkikh N.Yu., Vakhrin M.I., Ezhikova M. A., Kodess M. I.
Заглавие : Reaction of organozinc reagents prepared from bromomalonic acid esters and zinc with 3-aryl-2-cyanopropenoic acid primary amides [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2006. - Vol. 42, № 11. - С. 1625-1629
Систем. требования: http://www.springerlink.com/content/306077881327325g/fulltext.pdf
Примечания : 1.11.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Organozinc compounds prepared from bromomalonic acid esters and zinc react with 3-aryl-2-cyanopropenoic acid primary amides giving a single diastereomer of the corresponding 1-R?-4-aryl-2,6-dioxo-5-cyanopiperidine-3-carboxylic acid esters, or 3-R?-6-aryl-2,4-dioxo-5-cyano-3-azabicyclo[3.1.0]hexene-1-carboxylic acid esters
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2006, 42 (11), 1625.pdf
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9.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Shchepin V. V., Korzun A.E., Vakhrin M.I., Silaichev P. S., Ezhikova M. A., Kodess M. I.
Заглавие : Reactions of zinc enolates derived from 1-aryl-2-bromo-alkanones and 1-aryl-2-bromo-2-phenylethanone with 3-aroyl-6-bromochromen-2-ones and 2-benzoylbenzo[f]chromen-3-one [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2006. - Vol. 42, № 9. - С. 1344-1347
Систем. требования: http://www.springerlink.com/content/h5742j6jn2715675/fulltext.pdf
Примечания : 1.11.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 3-Aroyl-6-bromochromen-2-ones and 2-benzoylbenzo[f]chromen-3-one reacted with zinc enolates derived from 1-aryl-2-bromoalkanones and 1-aryl-2-bromo-2-phenylethanone to give, respectively, 4-(1-alkyl-2-aryl-2-oxoethyl)-3-aroyl-6-bromochroman-2-ones and 1-(2-aroyl-1-methyl-2-oxoethyl)-2-benzoyl-1,2-dihydrobenzo[f]chromen-3-ones as a single stereoisomer. Treatment with acetic anhydride of the intermediate product obtained from 3-benzoyl-6-bromochromen-2-one and [1-(4-chlorophenyl)-2-phenylethen-1-yloxy]-zinc(II) bromide resulted in the formation of 3-(1-acetoxy-1-phenylmethylidene)-6-bromo-4-[2-(4-chlorophenyl)-2-oxo-1-phenylethyl]chroman-2-one
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2006, 42 (9), 1344.pdf
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10.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Shchepin V. V., Silaichev P. S., Russkikh N.Yu., Vahrin M.I., Kodess M. I.
Заглавие : Reaction of N-substituted 2-oxochromen-3-carboxamides with bromoderivatives of zinc enolates prepared from alkyl 2,2-dialkyl-4,4-dibromo-3-oxoalkanoates and zinc [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2006. - Vol. 42, № 8. - С. 1157-1163
Систем. требования: http://www.springerlink.com/content/h7t4g2801hv891r0/fulltext.pdf
Примечания : 1.11.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Zinc enolates obtained from ethyl 2,2-dialkyl-4,4-dibromo-3-oxobutanoates and zinc react with N-substituted 2-oxochromen-3-carboxamides forming ethyl 3-(1a-(R3-carbamoyl)-2-oxo-1a,7b-dihydrocyclopropa[c]chromen-1-yl)-2,2-dialkyl-3-oxopropanoate isomer with a Z-position of methine hydrogens. Zinc enolates prepared from alkyl 2,2-dialkyl-4,4-dibromo-3-oxopentanoates and-hexanoates and zinc react with N-substituted 2-oxochromen-3-carboxamides to give rise to esters of 3-(1-alkyl-1a-(R3-carbamoyl)-2-oxo-1a,7b-dihydrocyclopropa-[c]chromen-1-yl)-2,2-dialkyl-3-oxopropanoic acid as isomers with the E-position of the methine proton and the alkyl substituent. The reaction carried out in the presence of small quantities of THF and HMPA leads to the formation of 9c-alkyl-2-R3-9b,9c-dihydro-5-oxa-2-azacyclopenta[2,3]-cyclopropa[1,2-a]naphthalene-1,3,4-triones. Zinc enolates from alkyl 2,2-dialkyl-4,4-dibromo-3-oxopentanoates and-hexanoates and zinc with the secondary amides of 2-oxochromen-3-carboxylic acid form alkyl 3-(2-oxo-1a-(piperidinocarbonyl)-and 3-(6-R1-1a-(morpholinocarbonyl)-2-oxo-1a,7b-dihydrocyclopropa[c]chromen-1-yl)-2,2-R2,R2-3-oxopropanoates as single geometrical isomers
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2006, 42 (8), 1157.pdf
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