Главная Новые поступления Описание Шлюз Z39.50

Базы данных


Труды сотрудников Института органического синтеза УрО РАН - результаты поиска

Вид поиска

Область поиска
в найденном
 Найдено в других БД:Публикации Чарушина В.Н. (14)
Формат представления найденных документов:
полныйинформационныйкраткий
Отсортировать найденные документы по:
авторузаглавиюгоду изданиятипу документа
Поисковый запрос: (<.>K=ACYLATION<.>)
Общее количество найденных документов : 39
Показаны документы с 1 по 10
 1-10    11-20   21-30   31-39 
1.
Инвентарный номер: нет.
   
   G 90


    Gruzdev, D. A.
    Acylative kinetic resolution of racemic heterocyclic amines using N-phthaloyl-(S)-amino acyl chlorides with alkyl side chains / D. A. Gruzdev, G. L. Levit, V. P. Krasnov // Tetrahedron: Asymmetry . - 2012. - Vol.23. - С. 1640-1646. - Bibliogr.: p. 1645-1646 (15 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
HETEROCYCLIC AMINES -- RACEMIC AMINES -- ACYL CHLORIDES
Аннотация: A comparative study of the acylative kinetic resolution of racemic 2-methyl-1,2,3,4 tetrahydroquinoline and 3,4-dihydro-3-methyl-2H-[1,4]benzoxazine using N-phthaloyl-(S)-amino acyl chlorides with alkyl side chains has been carried out. The influence of steric factors on the stereoselectivity of the acylation was demonstrated. The (S)-enantiomers of the heterocyclic amines (ee >99%) were obtained in good yields via a kinetic resolution protocol using N-phthaloyl-(S)-leucyl chloride

\\\\expert2\\NBO\\Tetrahedron Asymmetry\\2012, v. 23, p.1640.pdf
Найти похожие

2.
Инвентарный номер: нет.
   
   A 10


   
    A comparative study on the acylative kinetic resolution of racemic fluorinated and non-fluorinated 2-methyl-1,2,3,4-tetrahydroquinolines and 3,4-dihydro-3-methyl-2H-[1,4]benzoxazines [Electronic resource] / D. A. Gruzdev, E. N. Chulakov, G. L. Levit, M. A. Ezhikova, M. I. Kodess, V. P. Krasnov // Tetrahedron: Asymmetry . - 2013. - Vol.24, №19. - С. 1240-1246. - Bibliogr. : p. 1246 (21 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
RACEMIC FLUORINATED -- 1,2,3,4-TETRAHYDROQUINOLINES -- BENZOXAZINES
Аннотация: The acylative kinetic resolution of racemic 6-fluoro-2-methyl-1,2,3,4-tetrahydroquinoline, 7,8-difluoro-3,4-dihydro-3-methyl-2H-[1,4]benzoxazine, and their non-fluorinated analogues with (S)-naproxen and N-phthaloyl-(S)-amino acyl chlorides has been carried out. It has been shown that the presence of fluorine atoms in the aromatic fragment of a heterocyclic amine results in the increasing stereoselectivity of acylation with (S)-naproxen acyl chloride and in a decrease in the efficiency of acylative kinetic resolution using N-phthaloyl-(S)-amino acyl chlorides. A method for the preparation of enantiopure (S)-6-fluoro-2-methyl-1,2,3,4-tetrahydroquinoline (ee >99%) was developed

\\\\expert2\\NBO\\Tetrahedron Asymmetry\\2013, in Press, Corr. Proof, 4 Sept.pdf
Найти похожие

3.
Инвентарный номер: нет.
   
   N 10


   
    N-Tosyl-(S)-Prolyl Chloride in Kinetic Resolution of Racemic Heterocyclic Amines [Electronic resource] / D. A. Gruzdev, S. A. Vakarov, G. L. Levit, V. P. Krasnov // Chemistry of Heterocyclic Compounds. - 2014. - Article in Press. - С. 1-13
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
H-[1,4]BENZOXAZINE -- ACYLATION -- AMINES
Аннотация: The kinetic resolution of racemic heterocyclic amines via acylation with N-tosyl-(S)-prolyl chloride was systematically investigated. It was established that racemic mixtures of aromatic amines could be resolved with high efficiency, while the acylation of 2- and 3-methylpiperidines occurred with low diastereoselectivity. A method for the preparation of enantiomerically pure (3 R)-7,8-difluoro-3-methyl-3,4-dihydro-2 H-[1,4]benzoxazine was developed

Найти похожие

4.
Инвентарный номер: нет.
   
   K 81


    Krasnov, V. P.
    Nonenzymatic Acylative Kinetic Resolution of Racemic Amines and Related Compounds / V. P. Krasnov, D. A. Gruzdev, G. L. Levit // European Journal of Organic Chemistry. - 2012. - Vol.2012, №8. - С. 1471-1493. - Bibliogr. : p. 1491-1493 (76 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
KINETIC RESOLUTION -- ACYLATION -- AMINES -- AMIDES
Аннотация: Acylative kinetic resolution of racemic amines occupies a highly important place among the methods for preparation of enantio enriched or pure amines. Nonenzymatic acylative kinetic resolution is usually carried out in the presence of chiral acyl-transfer catalysts or under the action of chiral enantio- or diastereoselective resolving agents. Recently, this line of investigations has been rapidly developed and very interesting results of design and synthetic application of both new catalysts and chiral acylating agents have been obtained. This microreview summarizes the recent advances in this area.

\\\\expert2\\NBO\\European Journal of Organic Chemistry\\2012, p.1471.pdf
Найти похожие

5.
Инвентарный номер: нет.
   
   U 52


   
    Unexpected result for the acylation of arylhydrazonoethanethioamides [Electronic resource] / A. I. Bolgova, K. I. Lugovik, J. O. Subbotina, P. A. Slepukhin, V. A. Bakulev, N. P. Belskaia // Tetrahedron. - 2013. - Vol.69, №35. - С. 7423-7429. - Bibliogr. : p. 7429 (18 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ARYLHYDRAZONOETHANETHIOAMIDES -- AMINO GROUPS -- ACYLTHIOAMIDES
Аннотация: The acylation of arylhydrazonoethanethioamides containing primary amino group did not yield acylthioamides as expected. Surprisingly, the cyclic 5-acylimino-2,5-dihydro-1,2,3-thiadiazoles were obtained. The formation of thiadiazoles in this reaction was explained by the higher ability of arylhydrazono-N-acylthioacetamide intermediates to be oxidized comparing to their precursors. The presence of pseudobicyclic aromatic structure in the reaction product was a main factor favoring the formation of 1,2,3-thiadiazole ring

\\\\expert2\\NBO\\Tetrahedron\\2013, v. 69, p. 7423.pdf
Найти похожие

6.
Инвентарный номер: нет.
   
   F 62


   
    Five-membered 2,3-dioxo heterocycles: LXXVIII. Acylation of fischer's base with aroylketenes. Crystalline and molecular structure of (1E, 3Z)-4-(4-chlorophenyl)-4-hydroxy-1-(1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene)but-3-en-2-one [Electronic resource] / V. V. Konovalova, Yu. V. Shklyaev, P. A. Slepukhin, A. N. Maslivets // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2011. - Vol. 47, № 7. - P1062-1065. - Bibliogr. : p. 1065 (11 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Aroylketenes generated by thermolysis of 6-aryl-2,2-dimethyl-4H-1,3-dioxin-4-ones reacted with 1,3,3-trimethyl-2-methylidene-1,3-dihydro-2H-indole (Fischer's base) to produce (1E,3Z)-4-aryl-4-hydroxy-1-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)but-3-en-2-ones. The crystalline and molecular structures of (1E,3Z)-4-(4-chlorophenyl)-4-hydroxy-1-(1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene)but-3-en-2-one were determined by X-ray analysis

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2011, 47 (7), 1062.pdf
Найти похожие

7.
Инвентарный номер: нет.
   
   S 91


   
    Substituent effect on the stereoselectivity of acylation of racemic heterocyclic amines with N-phthaloyl-3-aryl-(S)-alanyl chlorides [Text] / G. L. Levit, D. A. Gruzdev, V. P. Krasnov, E. N. Chulakov, L. Sh. Sadretdinova, M. A. Ezhikova, M. I. Kodess, V. N. Charushin // Tetrahedron: Asymmetry . - 2011. - Vol. 22, № 2. - P185-189. - Bibliogr. : p. 189 (17ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The acylative kinetic resolution of racemic 2-methyl-1,2,3,4-tetrahydroquinoline and 2,3-dihydro-3-methyl-4H-1,4-benzoxazine using acyl chlorides of N-phthaloyl-(S)-phenylalanine, N-phthaloyl-3-(4-nitrophenyl)-(S)-alanine and N-phthaloyl-O-methyl-(S)-tyrosine as chiral resolving agents has been carried out. It is shown that the effectiveness of an acylative kinetic resolution depends on the electronic effects of substituents in the phenyl fragment of the acylating agent and increases as the electron-donating properties of the para-substituent (OMe H NO2) in phenyl fragment of N-phthaloyl-3-aryl-(S)-alanyl chlorides increase; conducting the process at a reduced temperature also contributes to an enhancement of the kinetic resolution

\\\\Expert2\\nbo\\Tetrahedron Asymmetry\\2011, v. 22, p.185.pdf
Найти похожие

8.
Инвентарный номер: нет.
   
   A 10


   
    A convenient method for the preparation of mono- and bis-substituted photochromic bis(benzothienyl)perfluorocyclopentenes via regioselective Friedel–Crafts acylation / N. S. Bogatishcheva, V. N. Yarovenko, K. S. Levchenko, O. I. Kobeleva, T. M. Valova, V. A. Barachevskii, M. I. Struchkova, P. S. Shmelin, M. M. Krayushkin, V. N. Charushin // Tetrahedron Letters. - 2012. - Vol.53, №44. - С. 5948-5951
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
REGIOSELECTIVE FRIEDEL–CRAFTS ACYLATION -- PHOTOCHROME -- BENZOFURANS
Аннотация: The regioselective Friedel–Crafts acylation of 1,2-bis(2-methylbenzo[b]thien-3-yl)hexafluorocyclopentene was developed. Depending on the reaction conditions, mono- or bis(bromoacetyl) derivatives are formed as single products in good yields. Further heterocyclizations involving α-bromoketone moieties gave a series of new photochromic compounds

\\\\Expert2\\nbo\\Tetrahedron Letters\\2012, v. 53, p. 5948.pdf
Найти похожие

9.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of enantiomers of 6-nitro- and 6-amino-2-methyl-1,2,3,4-tetrahydroquinolines / D. A. Gruzdev, G. L. Levit, M. I. Kodess, V. P. Krasnov // Chemistry of Heterocyclic Compounds. - 2012. - Vol.48, №5. - С. 748-757
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
AMIDES -- DIASTEREOISOMERS -- ENANTIOMERS
Аннотация: Enantiomers of 2-methyl-6-nitro-1,2,3,4-tetrahydroquinoline have been obtained by kinetic resolution of racemic 2-methyl-1,2,3,4-tetrahydroquinoline in acylation with acyl chlorides of N-protected amino acids followed by regioselective nitration of the diastereoisomeric amides and acidic hydrolysis. The introduction of a trifluoroacetyl protecting group into the position 1 of the enantio pure nitro compound followed by the reduction led to (S)-6-amino-2-methyl-1-trifluoroacetyl-1,2,3,4-tetra-hydroquinoline in a high yield

\\\\Expert2\\nbo\\Chemistry of Heterocyclic Compounds\\2012, v.48, N 5, p.748-757.pdf
Найти похожие

10.
Инвентарный номер: нет.
   
   R 35


   
    Regioselective C2-and C8-Acylation of 5,11-Dihydroindolo[3,2-b]carbazoles and the Synthesis of Their 2,8-Bis(quinoxalinyl) Derivatives [Electronic resource] / R. A. Irgashev, N. A. Kazin, G. A. Kim, G. L. Rusinov, V. N. Charushin // Synthesis-Stuttgart. - 2015. - Vol. 47, № 22. - С. 3561-3572. - Bibliogr. : p. 3572 (11 ref)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
5,11-DIHYDROINDOLO[3,2-B]CARBAZOLES -- 2-ARYLGLY-OXALS -- ACYLATION
Аннотация: An efficient approach for the double acetylation of 5,11-dihexyl- 6,12-di(hetero) aryl-substituted 5,11-dihydroindolo[3,2-b] carbazoles with acetic anhydride in the presence of boron trifluoride etherate has been developed, thus affording the corresponding 2,8-diacetyl derivatives in good yields. A similar acylation has been shown to occur by the reaction of anhydrides of other carboxylic acids. Oxidation of the obtained 2,8-diacetyl derivatives with selenium dioxide takes place on heating or under microwave irradiation, thus resulting in the formation of the corresponding 2,8-diglyoxals. The latter proved to react with aromatic o-diamines to afford new indolo[3,2-b] carbazoles bearing quinoxalinyl fragments at C-2 and C-8. Major optical properties of quinoxaline- containing indolo[3,2-b] carbazoles have been measured.

Найти похожие

 1-10    11-20   21-30   31-39 
 

Сиглы отделов ЦНБ УрО РАН


  бр.ф. - Бронированный фонд

  бф - Научно-библиографический отдел

  БХЛ - Фонд художественной литературы

  ИИиА -Фонд исторической литературы в ЦНБ УрО РАН

  ИМЕТ -Отдел ЦНБ в Институте металлургии УрО РАН

  кх - Отдел фондов (книгохранениe)

  МБА - Межбиблиотечный абонемент

  мф - Методический фонд

  ок - Отдел научной каталогизации

  оку - Отдел комплектования и учета

  орф - Обменно-резервный фонд

  пф - Читальный зал деловой и патентной информации

  рк - Фонд редкой книги

  ч/з - Главный читальный зал

  эр - Зал электронных ресурсов

  

Сиглы библиотек институтов и НЦ УрО РАН
© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)
Яндекс.Метрика