2024
DOI: 10.1021/jacs.3c12694
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Asymmetric Ion-Pairing Photoredox Catalysis for Stereoselective Cationic Polymerization under Light Control

Zan Yang,
Yun Liao,
Zhengyi Zhang
et al.

Abstract: By virtue of noninvasive regulations by light, photocontrolled polymerizations have attracted considerable attention for the precision synthesis of macromolecules. However, a cationic polymerization with simultaneous photocontrol and tacticity-regulation remains elusive so far. Herein, we introduce an asymmetric ion-pairing photoredox catalysis strategy that allows for the development of a stereoselective cationic polymerization with concurrent light regulation for the first time. By employing an ion pair cata… Show more

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Cited by 6 publications
(1 citation statement)
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“…An asymmetric ion-pairing strategy was recently employed to undergo the first photocontrolled, stereoselective cationic RAFT polymerization, 108 where the active cationic component of a photoredox catalyst (PC + ) was combined with a steric hindrance-imposing chiral anion (*A – ) to achieve control over the stereochemistry ( Figure 23 ). Here, the anion *A – pairs with the propagating carbocationic chains (P n + ) influence the addition of the incoming monomer, leading to the formation of a stereoregular polymer.…”
Section: Introductionmentioning
confidence: 99%
“…An asymmetric ion-pairing strategy was recently employed to undergo the first photocontrolled, stereoselective cationic RAFT polymerization, 108 where the active cationic component of a photoredox catalyst (PC + ) was combined with a steric hindrance-imposing chiral anion (*A – ) to achieve control over the stereochemistry ( Figure 23 ). Here, the anion *A – pairs with the propagating carbocationic chains (P n + ) influence the addition of the incoming monomer, leading to the formation of a stereoregular polymer.…”
Section: Introductionmentioning
confidence: 99%