Copper Complexes Stabilized by Chitosans: Peculiarities of the Structure, Redox, and Catalytic Properties Научная публикация
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Kinetics and Catalysis
ISSN: 1608-3210 , E-ISSN: 0023-1584 |
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| Вых. Данные | Год: 2003, Том: 44, Номер: 6, Страницы: 793-800 Страниц : 8 DOI: 10.1023/b:kica.0000009056.74699.b8 | ||
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Реферат:
Reaction of excess of product A [(HOCH2CH2)2NCH2CH(Ph)OH (1):(HOCH2CH2)2NCH(Ph)CH2OH (2)=9:1] with GeCl4 led to a mixture of 1-chloro-3-phenylgermatrane (3) and 1-chloro-4-phenylgermatrane (4). Compound 4 was isolated in yield 9% from this mixture. Reaction of (EtO)3GeCl with product A gave 3 in yield 55%. 1-(Phenylethynyl)-3-phenylgermatrane (5) was prepared in yield 31% by treatment of (EtO)3GeCCPh with product A. Reaction of product A with mixture of GeO2 and H2O produced N(CH2CH2O)2(CH2CHPhO)GeOH (6) in yield 73%. The presence of N(CH2CH2O)2(CHPhCH2O)GeOH (7) among the products of this reaction was confirmed by 1H-, 13C-NMR spectroscopy and X-ray analysis. N(CH2CH2O)2(CH2CHPhO)GeF (8) is formed by the treatment of 6 with BF3·Et2O. N(CH2CH2O)2(CH2CHPhO)GeOSiMe3 (9) was obtained by silylation of 6 with (Me3Si)2NH or Me3SiCl–Et3N. Refluxing of a suspension of 6 in xylene with continuous removal of water by azeotropic distillation afforded [N(CH2CH2O)2(CH2CHPhO)Ge]2O (10). 9 reacted with SOCl2, Me3SiBr and Me3SiOTf to give N(CH2CH2O)2(CH2CHPhO)GeX (3, X=Cl; 11, X=Br; 12, X=OTf), respectively. Reaction of 11 with Et3SnOMe led to the formation of N(CH2CH2O)2(CH2CHPhO)GeOMe (13). Germatranes N(CH2CH2O)2(CH2CHPhO)GeY [14, Y=Flu (fluorenyl); 15, Y=N(SiMe3)2] were obtained from the nucleophilic substitution of the substituent X in N(CH2CH2O)2(CH2CHPhO)GeX (X=OSiMe3, Br) with the corresponding LiY. All compounds were characterized by 1H- and 13C-NMR spectroscopy and mass spectrometry. Single-crystal structures of 5 and 7–9 were determined by X-ray diffraction studies.
Reaction of excess of product A [(HOCH2CH2)2NCH2CH(Ph)OH (1):(HOCH2CH2)2NCH(Ph)CH2OH (2)=9:1] with GeCl4 led to a mixture of 1-chloro-3-phenylgermatrane (3) and 1-chloro-4-phenylgermatrane (4).
Библиографическая ссылка:
Kramareva N.V.
, Finashina E.D.
, Kucherov A.V.
, Kustov L.M.
Copper Complexes Stabilized by Chitosans: Peculiarities of the Structure, Redox, and Catalytic Properties
Kinetics and Catalysis. 2003. V.44. N6. P.793-800. DOI: 10.1023/b:kica.0000009056.74699.b8 WOS Scopus OpenAlex
Copper Complexes Stabilized by Chitosans: Peculiarities of the Structure, Redox, and Catalytic Properties
Kinetics and Catalysis. 2003. V.44. N6. P.793-800. DOI: 10.1023/b:kica.0000009056.74699.b8 WOS Scopus OpenAlex
Идентификаторы БД:
| Web of science: | WOS:000187806200011 |
| Scopus: | 2-s2.0-0346458509 |
| OpenAlex: | W2007320984 |