Side-chain liquid crystalline polyacrylates containing 3,4-disubstituted pyrrole moiety

Kim, Kyu‐Sik; Hatanaka, Kenichi; Uryu, Toshiyuki

doi:10.1002/(sici)1099-0518(20000415)38:8<1214::aid-pola4>3.0.co;2-2

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…All the polymers showed nematic phase only, despite the fact that monomers exhibited complex LC behavior involving several intermediate smectic phases. Polymers with 10 methylene units between dimethylpyrrole moieties and the remaining part of the side chains (m=10) had the lowest phase transition temperature (Cr 92.5 N 176 I), while the polymer with five methylene units (m=5) had the highest ones (Cr 126 N 213.5 I) [ 85 ].…”

Section: Novel Side Chain and Main/side Chain Polymer Structuresmentioning

confidence: 99%

Side-chain Liquid Crystal Polymers (SCLCP): Methods and Materials. An Overview

Ganicz

Stańczyk

2009

Materials

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This review focuses on recent developments in the chemistry of side chain liquid crystal polymers. It concentrates on current trends in synthetic methods and novel, well defined structures, supramolecular arrangements, properties, and applications. The review covers literature published in this century, apart from some areas, such as dendritic and elastomeric systems, which have been recently reviewed.

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Section: Novel Side Chain and Main/side Chain Polymer Structuresmentioning

confidence: 99%

Side-chain Liquid Crystal Polymers (SCLCP): Methods and Materials. An Overview

Ganicz

Stańczyk

2009

Materials

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Efficient Access to 3, 4‐Diarylpyrroles through Selective Bromination and Subsequent Suzuki‐Coupling Reaction

Liu

2019

ChemistrySelect

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An efficient and practical synthesis of 3, 4-disubstituted pyrrole was developed through bromination and the subsequent Suzuki-coupling reaction. The bromination of pyrrole-1-dimethylsulfonamide occurred selectively on the two β-positions to afford 3, 4-dibromo-N, N-dimethyl-1H-pyrrole-1-sulfonamide, from which symmetrical and unsymmetrical 3, 4-diarylpyrroles were prepared through a stepwise Suzuki-coupling reaction.This reaction is complementary to the existing methods and is well-tolerable by a variety of functional groups. The bromination can readily be scaled-up to gram-scale synthesis without decreasing the yield. In addition, the other halogenations of pyrrole were also studied, and different chloroproducts were isolated.

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