Journal
NEW JOURNAL OF CHEMISTRY
Volume 44, Issue 21, Pages 8944-8951Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0nj01887b
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Funding
- DST
- CSIR
- DST-SERB [ECR/2016/001092, EEQ/2017/000768]
- DST [DST/INSPIRE/04/2017/001216, IFA17-MS112]
- DST-FIST [SR/FST/CSI-257/2014(C)]
- Central University of Rajasthan
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4-Arylpyrazole-decorated dibenzothiophenes have been synthesized. The synthesis involves the treatment of 2,8-dibromodibenzothiophene with pyrazole under Ullmann-type amination conditions for the dual C-N bond formation. The selective bromination of the resulting dual C-N bonded 2,8-dipyrazolyldibenzothiophene, and the subsequent Suzuki-Miyaura reaction furnished the target conjugated materials comprising small organic molecules. The electron-deficient dibenzothiophene-S,S-dioxide core was obtained in quantitative yield. UV-Vis absorption studies indicated changes in the positions of the peak maxima upon increasing the conjugation length. Electrochemical and theoretical investigations of selected synthesized materials are also included.
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