MONOHALOGENATION OF ZIRCONACYCLOPENTANE COMPLEXES VIA ALKYLALKOXYZIRCONOCENE

Treatment of trans-3,4-diethylzirconacyclopentane complex, which was a selective butene-butene coupling product on zirconium, with methanol followed by bromine gave selectively monobromination product, 2-ethyl-3-methyl-1-bromopentane, in 89% yield with high stereoselectivity. Similarly, non-conjugat...

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Bibliographic Details
Published inChemistry letters no. 9; pp. 1693 - 1696
Main Authors TAKAHASHI, T, AOYAGI, K, HARA, R, SUZUKI, N
Format Journal Article
LanguageEnglish
Published TOKYO Chemical Soc Japan 01.09.1992
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
ZIRCONOCENE
REAGENTS
ZIRCONIUM
ALKYL ALKENE
DERIVATIVES
HYDRIDE
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Summary:Treatment of trans-3,4-diethylzirconacyclopentane complex, which was a selective butene-butene coupling product on zirconium, with methanol followed by bromine gave selectively monobromination product, 2-ethyl-3-methyl-1-bromopentane, in 89% yield with high stereoselectivity. Similarly, non-conjugated diene cyclization products on zirconium were also selectively converted into monohalogenated compounds. These selective monohalogenations proceeded via alkylalkoxyzirconocene complexes.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.1992.1693