期刊
CANADIAN JOURNAL OF CHEMISTRY
卷 81, 期 11, 页码 1341-1349出版社
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/V03-138
关键词
T-8; Q(8); silsesquioxane; Si-29 NMR; hydrosilylation; tetrad pattern; regioselectivity; statistical modelling
The products from the reaction of octahydrosilsesquioxane (T-8-H) with different molar ratios of phenol and undec-1-ene or methyl 3,3-dimethylpent-4-enoate (MDP) in the presence of chloroplatinic acid have been analysed by Si-29 NMR spectroscopy. The distribution of the two different pendant groups leads to tetrad patterns where the relative chemical peak intensities reflect the selectivity for particular patterns of substitution. As well as analysing the cause of these tetrad patterns we also discuss how the regioselectivity of hydrosilylation can be determined.
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