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Synfacts 2024; 20(02): 0133
DOI: 10.1055/s-0043-1763864
DOI: 10.1055/s-0043-1763864
Synthesis of Materials and Unnatural Products
Conjugated [5]Cumulene Polymers from Propargylic Monomers
Wang Z-Y,
Zhu R.
*
Peking University, Beijing, P. R. of China
Conjugated [5]Cumulene Polymers Enabled by Condensation Polymerization of Propargylic Electrophiles.
J. Am. Chem. Soc. 2023;
145, 43: 23755-23763
DOI: 10.1021/jacs.3c08290.
Conjugated [5]Cumulene Polymers Enabled by Condensation Polymerization of Propargylic Electrophiles.
J. Am. Chem. Soc. 2023;
145, 43: 23755-23763
DOI: 10.1021/jacs.3c08290.
Significance
Due to the challenging syntheses and instability of high cumulenes, their functional explorations are limited. Here, a step-growth polymerization method is reported for achieving conjugated high polymers featuring [5]cumulene as a repeat unit.
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Comment
To tackle the stability issue, substituents are introduced at the ortho-position of the aryl side groups, providing steric protection by adjusting the torsion angles with respect to the main chain. Improved stability, as well as backbone planarity, is observed with the polymers.
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Publication History
Article published online:
16 January 2024
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