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Cover Feature: Pd‐Catalyzed Consecutive C−H‐Arylation‐Triggered Cyclotrimerization: Synthesis of Star‐Shaped Benzotristhiazoles and Benzotrisoxazoles (Chem. Eur. J. 36/2018)
Author(s) -
Xu Zhanqiang,
Oniwa Kazuaki,
Kikuchi Hiromasa,
Bao Ming,
Yamamoto Yoshinori,
Jin Tienan,
Terada Masahiro
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201802835
Subject(s) - intramolecular force , star (game theory) , molecule , catalysis , thiazole , cover (algebra) , chemistry , stereochemistry , combinatorial chemistry , physics , organic chemistry , astrophysics , mechanical engineering , engineering
Star‐shaped π‐extended discotic molecules with benzotristhiazole or benzotrisoxazole as a central core are synthesized by a Pd‐catalyzed consecutive C−H arylation. These molecules exhibit tunable energy levels and high fluorescence quantum yields. The Pd 0 /XPhos catalyst system reacts with 4‐bromothiazole to form a stable thiazole‐Pd species that gives rise to the inter‐ and intramolecular consecutive C−H arylation to sequentially construct the corresponding star‐shaped π‐molecules efficiently. More information can be found in the Full Paper by T. Jin et al. on page 9041.