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Haptotropic rearrangements in tricarbonylchromium complexes of 2-aminobiphenyl and 4-aminobiphenyl: NMR, X-ray, and DFTstudiesтезисы доклада
- Авторы: Czerwinski Curtis J., Guzei Ilia A., Oprunenko Yuri F., Fetisov Evgenii O., Gloriozov Igor P., Riggle Kevin M., Schroeder Jason R., Spencer Lara C.
- Сборник: From Abstracts, 40th Great Lakes Regional Meeting of the American Chemical Society, La Crosse, WI, United States
- Тезисы
- Год издания: 2013
- Место издания: American Chemical Society, La Crosse, WI, United States United States
- Первая страница: GLRM-130
- Последняя страница: GLRM-130
- Аннотация: The para-aminobiphenyl compd. [(η6-C6H5)(C6H4-4-NH2)]Cr(CO)3 has an arene-Ph dihedral angle of 38.01(6)° as detd. by single-crystal X-ray crystallog., and 34.7(11)° as detd. by DFT calcns. At 140°C, it undergoes haptotropic rearrangement in soln. to form [(η6-C6H4-4-NH2)(C6H5)]Cr(CO)3, with a rate const. k=5.0 x 10-5s-1, even though previous reports have suggested that such rearrangements should not be obsd. in compds. with arene-Ph dihedral angles greater than 22°. The ortho-substituted analog [(η6-C6H5)(C6H4-2-NH2)]Cr(CO)3 has an arene-Ph dihedral angle
- Добавил в систему: Глориозов Игорь Павлович