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Helical Polymers from Optically Active Epoxides with Bulky Pendants

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Summary

The backbone of polyethers are often flexible because of inherent characteristics of ether linkage, but polyethers from chiral epoxides could form stable one-handed helical structure in solution state, if the pendants on the chain of polyethers are enough bulky and the distance between pendants and main chain is appropriate.

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  14. Optically active 4,4,4-triphenyl-1,2-butanediol, 1HNMR (CDCl3): δ=7.18-7.37 (m, 15H, PhH), 3.75-3.80(m, 1H, - CH-), 3.14 (dd, J1-4.1Hz, J2=14.8Hz 1H,- CH2-), 3.01-3.05 (m, 1H, -CH2-), 2.82-2.86 (m, 1H, -CH2-), 2.67 (dd, J1-5.2 Hz, J2=14.8Hz, 1H, -CH2-CPh3), 1.86 (m, 12H, -OH), 1.25 (m, 1H, -OH); 13CNMR(CDCl3): δ= 146.63, 129.02, 128.21, 126.36, 69.46, 56.05, 50.88, 45.13. [α]58920= -38o (c 0.2, THF)

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Authors and Affiliations

  1. College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, China

    Jing Cao, Nian-Fa Yang, Ji-Chao Li & Li-Wen Yang

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  1. Jing Cao
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  2. Nian-Fa Yang
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  3. Ji-Chao Li
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  4. Li-Wen Yang
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Correspondence to Nian-Fa Yang.

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Cao, J., Yang, NF., Li, JC. et al. Helical Polymers from Optically Active Epoxides with Bulky Pendants. Polym. Bull. 59, 481–490 (2007). https://doi.org/10.1007/s00289-007-0788-3

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  • DOI: https://doi.org/10.1007/s00289-007-0788-3

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