On the Synthesis of Chloro Derivatives of Five-Membered Heterocyclics via the Lithium Derivatives |
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| Authors: | Salo Gronowitz Anna-Britta Hörnfeldt Kerstin Pettersson |
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| Institution: | Division of Organic Chemistry 1, Chemical Center , University of Lund , P.O.B. 740, S-220 07, Lund 7, Sweden |
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| Abstract: | In connection with our 13C NMR investigations we were interested in obtaining pure samples of 2- and 3-chlorofuran and 2- and 3-chloroselenophene. While direct chlorination with molecular chlorine or other chlorinating agents can successfully be used for the preparation of 2-chlorothiophene,1 we could not reproduce either yields or isomeric purity in the corresponding chlorination of selenophene.2,3 |
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