期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 695, 期 9, 页码 1300-1306出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2010.02.017
关键词
Organotellurium halides; X-ray structure; Ferrocenylacetylene
资金
- Russian Foundation for Basic Research [06-03-32891]
- Russian Academy of Sciences [OX 1.5, 8P15]
- Department of Science and Technology, Government of India
Organotellurium(IV) trihalides RTeX3 (X = Br, I) reacts readily with ferrocenylacetylene to give (Z)-products of electrophilic addition to C-C triple bond: (Z)-FcXC = CTeX2R (R = Ph, X = Br (1) or I (2); R = trans-8-ethoxy-4-cyclooctenyl, X = Br (3)). In case of PhTeX3 (X = Br or I) the room temperature reaction is spontaneous and the structure of the product does not depends on the polarity of the solvent used; this is in contrast to the reaction of aryl-acetylenes with RTeBr3 which were reported to afford (E)-bromovinyl aryltellurium dibromides in methanol and its (Z)-isomer in benzene. Molecular and crystal structures of new compounds and effect of bulky and electron-rich ferrocenyl substituent on the reactivity of acetylene moiety are discussed in this paper. (C) 2010 Elsevier B.V. All rights reserved.
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