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955 results

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Page 1
Azulene-Based BN-Heteroaromatics.
Xin H, Li J, Yang X, Gao X. Xin H, et al. J Org Chem. 2020 Jan 3;85(1):70-78. doi: 10.1021/acs.joc.9b01724. Epub 2019 Oct 3. J Org Chem. 2020. PMID: 31549835
Azulene, a nonalternant bicyclic aromatic hydrocarbon, has unique chemical and physical properties and is considered to be a promising building block for constructing novel polycyclic aromatic hydrocarbons (PAHs) and heteroaromatics. ...In addition, Az-BN-1 and Az-BN-2 exh …
Azulene, a nonalternant bicyclic aromatic hydrocarbon, has unique chemical and physical properties and is considered to be a promisin …
Azulene-Fused Acenes.
Ong A, Tao T, Jiang Q, Han Y, Ou Y, Huang KW, Chi C. Ong A, et al. Angew Chem Int Ed Engl. 2022 Nov 2;61(44):e202209286. doi: 10.1002/anie.202209286. Epub 2022 Aug 16. Angew Chem Int Ed Engl. 2022. PMID: 35822738
Herein, we report the synthesis and physical properties of three azulene-fused acene molecules (1, 2 and 3), which are isoelectronic to the pentacene, hexacene and heptacene, respectively. X-ray crystallographic analysis, NMR spectra, and theoretical calculations reveal a …
Herein, we report the synthesis and physical properties of three azulene-fused acene molecules (1, 2 and 3), which are isoelectronic …
Azulene-Naphthalene, Naphthalene-Naphthalene, and Azulene-Azulene Rearrangements.
Mirzaei MS, Taherpour AA, Wentrup C. Mirzaei MS, et al. J Org Chem. 2022 Sep 2;87(17):11503-11518. doi: 10.1021/acs.joc.2c01099. Epub 2022 Aug 12. J Org Chem. 2022. PMID: 35960863
Furthermore, thermal azulene-azulene isomerization is feasible through vinylidene-acetylene-vinylidene (VAV), dehydrotriquinacene (DTQ), and azulvalene (AV) pathways with activation energies lying below that required for the azulene-naphthalene conversion, i. …
Furthermore, thermal azulene-azulene isomerization is feasible through vinylidene-acetylene-vinylidene (VAV), dehydrotriquinac …
Azulene-Pyridine-Fused Heteroaromatics.
Xin H, Li J, Lu RQ, Gao X, Swager TM. Xin H, et al. J Am Chem Soc. 2020 Aug 5;142(31):13598-13605. doi: 10.1021/jacs.0c06299. Epub 2020 Jul 27. J Am Chem Soc. 2020. PMID: 32790412
Azulene, a nonbenzenoid bicyclic aromatic hydrocarbon with unique electronic structure, is a promising building block for constructing nonbenzenoid pi-conjugated systems. However, azulene-fused (hetero)aromatics remain rare as a result of limited synthetic methods. …
Azulene, a nonbenzenoid bicyclic aromatic hydrocarbon with unique electronic structure, is a promising building block for constructin …
Cycloazulenylene.
Douglas C, Sprachmann J, Dunlop D, Schlecht J, Neudörfl J, Wachsmuth T, Frost J, Slanina T, Dumele O. Douglas C, et al. Angew Chem Int Ed Engl. 2026 Jul 16:e2204400. doi: 10.1002/anie.2204400. Online ahead of print. Angew Chem Int Ed Engl. 2026. PMID: 42464472
Subjecting such systems to strain and macrocyclic conjugation further changes these characteristics, leading to materials with fundamentally new properties. Azulene, a nonalternant hydrocarbon known for its anti-Kasha fluorescence and intense blue coloration, is herein str …
Subjecting such systems to strain and macrocyclic conjugation further changes these characteristics, leading to materials with fundamentally …
Calix[4]azulene.
Colby DA, Lash TD. Colby DA, et al. J Org Chem. 2002 Feb 8;67(3):1031-3. doi: 10.1021/jo0110101. J Org Chem. 2002. PMID: 11856059
Azulene reacts with paraformaldehyde in the presence of florisil to give excellent yields of calix[4]azulene....
Azulene reacts with paraformaldehyde in the presence of florisil to give excellent yields of calix[4]azulene....
2-(Naphthalen-2-yl)azulene.
Ye J, Shi ZF, Sun CL, Xu ZG, Zhang HL. Ye J, et al. Acta Crystallogr Sect E Struct Rep Online. 2010 Feb 13;66(Pt 3):o592-3. doi: 10.1107/S1600536810004897. Acta Crystallogr Sect E Struct Rep Online. 2010. PMID: 21580355 Free PMC article.
In the title compound, C(20)H(14), a naphthalene ring system is linked at the 2-position to the 2-C atom of the five-membered ring of an azulene unit. The compound crystallizes with two reasonably similar mol-ecules in the asymmetric unit. ...The dihedral angle between the …
In the title compound, C(20)H(14), a naphthalene ring system is linked at the 2-position to the 2-C atom of the five-membered ring of an …
Azulene in Polymers and Their Properties.
Zeng HN, Png ZM, Xu J. Zeng HN, et al. Chem Asian J. 2020 Jul 1;15(13):1904-1915. doi: 10.1002/asia.202000444. Epub 2020 Jun 8. Chem Asian J. 2020. PMID: 32333717 Review.
In particular, incorporation of azulene into polymers has led to many interesting properties. This minireview covers functionalization methods of azulene at its various positions of 5- and 7-membered rings to form azulene derivatives including azulene …
In particular, incorporation of azulene into polymers has led to many interesting properties. This minireview covers functionalizatio …
Azulene-Embedded [n]Helicenes (n=5, 6 and 7).
Duan C, Zhang J, Xiang J, Yang X, Gao X. Duan C, et al. Angew Chem Int Ed Engl. 2022 Apr 25;61(18):e202201494. doi: 10.1002/anie.202201494. Epub 2022 Mar 4. Angew Chem Int Ed Engl. 2022. PMID: 35191154
Azulene is a non-benzenoid aromatic building block with unique chemical structure and physicochemical properties. By using the "bottom-up" synthetic strategy, we synthesized three azulene-embedded [n]helicenes ([n]AzHs, n=5, 6 and 7), in which one terminal azulen …
Azulene is a non-benzenoid aromatic building block with unique chemical structure and physicochemical properties. By using the "botto …
2,2,2-Trifluoro-1-[3-(2,2,2-trifluoro-acet-yl)azulen-1-yl]ethanone.
Förster S, Eissmann F, Seichter W, Weber E. Förster S, et al. Acta Crystallogr Sect E Struct Rep Online. 2011 Jun 1;67(Pt 6):o1419. doi: 10.1107/S1600536811017569. Epub 2011 May 14. Acta Crystallogr Sect E Struct Rep Online. 2011. PMID: 21754800 Free PMC article.
There are two mol-ecules in the asymmetric unit of the title compound, C(14)H(6)F(6)O(2), in which the azulene systems possess an almost planar geometry with maximum deviations of 0.0438 (15) and 0.0396 (14) A. Besides intra- and inter-molecular C-H O and C-H F inter-actio …
There are two mol-ecules in the asymmetric unit of the title compound, C(14)H(6)F(6)O(2), in which the azulene systems possess an alm …
955 results