Summary
The monomer 6-thiabicyclo[3.2.2.02,4]non-8-ene (4) was prepared by LiAlH4 reductive dechlorination of the 1∶1 adduct3 formed on heating cycloheptatriene with thiophosgene. Cationic initiated polymerization of4 with boron trifluoride etherate as catalyst gave a white solid polymer (8, ¯Mn = 6,300), in 83% yield. The polymer structure was established by comparison of the1H NMR spectrum with that of the model compound 5-mercaptobicyclo[4.1.0]hept-3-ene-2-methanol (6).
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References
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Bacle, B.M.F., Bender, C.O., Bulpin, A.P. et al. Selective cationic ring-opening polymerization of 6-thiatricyclo[3.2.2.02,4]non-8-ene. Polymer Bulletin 16, 401–404 (1986). https://doi.org/10.1007/BF00955570
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DOI: https://doi.org/10.1007/BF00955570