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NOVEL TRICARBONYLCHROMIUM COMPLEXES OF 1,10 AND 1,8-DIHYDRO-1,6-METHANO[10]ANNULENES AND THEIR RICOCHET INTERRING HAPTOTROPIC REARRANGEMENTSстатья
Информация о цитировании статьи получена из
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Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: OPRUNENKO YF, RESHETOVA MD, MALYUGINA SG, USTYNYUK YA, USTYNYUK NA, BATSANOV AS, YANOVSKY AI, STRUCHKOV YT
- Журнал: Organometallics
- Том: 13
- Номер: 6
- Год издания: 1994
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 2284
- Последняя страница: 2290
- DOI: 10.1021/om00018a022
- Аннотация: Tricarbonyl((2,3,4,5,6,7-eta)-l-n-butyl-1,8-dihydro-1,6-methano[10]annutene)chromium (10) and some other complexes of similar structure were prepared by treatment of tricarbonyl((1,2,3,4,5,6-eta)-1,6-methano[10]annulene)chromium with n-BuLi. 10 was characterized by a single-crystal X-ray diffraction study and H-1 and C-13 NMR spectra. Crystal data for 10: C18H20O3Cr, P1BAR, a = 7.811(3) angstrom, b = 10.191(4) angstrom, c = 10.996(4) angstrom, alpha = 80.96(3)-degrees, beta = 80.68(3)-degrees, gamma = 75.15(3)-degrees, Z = 2, V = 828.7(7) angstrom3. Reversible intramolecular inter-ring haptotropic rearrangements were observed for the derivatives of 10 under thermal conditions. The migration of a Cr(CO)3 group between the eta6-2-7 and eta6-5-10 positions in the ligand is accompanied by sigmatropic shifts of hydrogen endo atoms. The rearrangement mechanism is discussed.
- Добавил в систему: Опруненко Юрий Федорович