Synthesis and preparative separation of cis- and trans-α, β-difluoro-β-chlorostyrenes |
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| Authors: | V I Reznikov V Yu Zel'venskii L F Rybakova E M Panov O M Khodkevich A F Volkov L K Vasyanina K A Kocheshkov |
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| Institution: | (1) SmithKline Beecham, Welwyn, UK; |
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| Abstract: | | 1. |
m-Bromo- , -difluoro--chlorostyrene was synthesized and the conditions for the analytical and preparative separation of the cis and trans isomers were determined. They were isolated with a purity of 99.8% as were the isomers of the previously synthesized, - difluoro--chlorostyrene.
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The structure of the isomers was confirmed by NMR, NQR, and IR spectroscopies.
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