Synthesis of Flake-shaped [3]Cyclo-4,6-dibenzofuranylene
Publication type: Journal Article
Publication date: 2018-01-05
scimago Q3
wos Q4
SJR: 0.374
CiteScore: 2.8
Impact factor: 1.1
ISSN: 03667022, 13480715
General Chemistry
Abstract
The cyclic trimer of dibenzofuran linked at the 4,6-positions, named [3]cyclo-4,6-dibenzofuranylene, was synthesized by Ni(0)-mediated reductive coupling of 4,6-dibromodibenzofuran. DFT calculation indicated that the flake-shaped C2 symmetric structure is the most stable conformer and the propeller-shaped D3 symmetric structure is the minor conformer with a higher energy (+19.1 kcal mol−1). The calculated inversion energy of the C2 conformer through a Cs symmetric transition state was +4.1 kcal mol−1, showing rapid fluctuation, which is consistent with the observation of only one set of 1H NMR signals of dibenzofuran of [3]cyclo-4,6-dibenzofuranylene.
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Higashibayashi S. Synthesis of Flake-shaped [3]Cyclo-4,6-dibenzofuranylene // Chemistry Letters. 2018. Vol. 47. No. 1. pp. 95-96.
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Higashibayashi S. Synthesis of Flake-shaped [3]Cyclo-4,6-dibenzofuranylene // Chemistry Letters. 2018. Vol. 47. No. 1. pp. 95-96.
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TY - JOUR
DO - 10.1246/cl.170925
UR - https://doi.org/10.1246/cl.170925
TI - Synthesis of Flake-shaped [3]Cyclo-4,6-dibenzofuranylene
T2 - Chemistry Letters
AU - Higashibayashi, Shuhei
PY - 2018
DA - 2018/01/05
PB - Oxford University Press
SP - 95-96
IS - 1
VL - 47
SN - 0366-7022
SN - 1348-0715
ER -
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@article{2018_Higashibayashi,
author = {Shuhei Higashibayashi},
title = {Synthesis of Flake-shaped [3]Cyclo-4,6-dibenzofuranylene},
journal = {Chemistry Letters},
year = {2018},
volume = {47},
publisher = {Oxford University Press},
month = {jan},
url = {https://doi.org/10.1246/cl.170925},
number = {1},
pages = {95--96},
doi = {10.1246/cl.170925}
}
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MLA
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Higashibayashi, Shuhei. “Synthesis of Flake-shaped [3]Cyclo-4,6-dibenzofuranylene.” Chemistry Letters, vol. 47, no. 1, Jan. 2018, pp. 95-96. https://doi.org/10.1246/cl.170925.