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Front Cover: Expanding the Family of Fluorescent Coumarin[4]arenes: Improved Synthesis, π‐Extension, and Characterization (Eur. J. Org. Chem. 48/2019)
Author(s) -
Kumar Pawan,
Venkatakrishnan Parthasarathy
Publication year - 2019
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201901760
Subject(s) - coumarin , chemistry , front cover , fluorescence , alkyl , enantiomer , stereochemistry , combinatorial chemistry , cover (algebra) , organic chemistry , optics , mechanical engineering , physics , engineering
The Front Cover shows an artistic display of a novel family of fluorescent dissymmetric coumarin[4]arenes. The dolphins in the picture represent the coumarin[4]arene family whose dissymmetric enantiomeric structures are shown in blue, above the sea level, as lit by the Sun. The coumarin[4]arenes in sea denote the two boat forms that are in rapid conformation interconversion in solution at room temperature. In this report, an optimal synthesis of C‐alkyl coumarin[4]arenes as well as their precursors has been described. The scope of these scaffolds for structural elaboration is further demonstrated. Excitingly, the family of coumarin[4]arenes emits visible blue emission. More information can be found in the Full Paper by P. Kuma and P. Venkatakrishnan.

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