CH Activation as a Shortcut to Conjugated Polymer Synthesis. Issue 1 (10th September 2018)

• Record Type: Journal Article
• Authors: Blaskovits, J. Terence; Leclerc, Mario
• Is Part Of: Macromolecular rapid communications. Volume 40:Issue 1(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-09-10
• Subjects: CH activation -- conjugated polymer synthesis -- direct (hetero)arylation polymerization -- green chemistry -- palladium catalysis; Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.201800512
• Languages: English
• ISSNs: 1022-1336

Abstract

Abstract: Direct (hetero)arylation polymerization exploits the palladium‐catalyzed activation of aromatic CH bonds for the atom‐economical synthesis of conjugated polymers for a wide range of applications. This account outlines how direct arylation methodologies overcome many of the limitations of contemporary polymerization techniques at both the research and production scale, and explains how monomer design and reaction conditions must be tailored to ensure high polymer molecular weight, yield, and structural integrity. Current research aims to improve further this reaction's profile as a sustainable methodology while at the same time making it competitive with the Migita–Stille and Miyaura–Suzuki polymerizations both in scope of accessible structures and synthetic efficiency. This feature article charts the recent developments and future directions of CH activation research as it moves toward becoming at once an industrially feasible, environmentally friendly, and synthetically powerful polymerization technique. Abstract : The well‐travelled paths to conjugated polymers are paved with many synthetic steps and reaction by‐products. The direct (hetero)arylation and oxidative CH arylation polymerizations streamline synthesis through the activation of aromatic CH bonds without requiring organometallic intermediates. This feature article highlights the applications of transition‐metal‐catalyzed CH arylation reactions to the environmentally friendly and industrially amenable synthesis of conjugated polymers.