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1991 1
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16 results

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Page 1
Mechanistic investigations of the 2-coumaranone chemiluminescence.
Schramm S, Navizet I, Prasad Karothu D, Oesau P, Bensmann V, Weiss D, Beckert R, Naumov P. Schramm S, et al. Phys Chem Chem Phys. 2017 Aug 30;19(34):22852-22859. doi: 10.1039/c7cp03425c. Phys Chem Chem Phys. 2017. PMID: 28812068
Despite the favorable quantum yields, the exact mechanism of their chemiluminescence remains elusive. Here, we analyze the details of the mechanism of the 2-coumaranone chemiluminescence using a combination of experimental and computational methods. ...These results …
Despite the favorable quantum yields, the exact mechanism of their chemiluminescence remains elusive. Here, we analyze the details of the me …
Relationships between paraoxon and 2-coumaranone hydrolytic activities in sera genotyped for PON1 Q192R polymorphism.
Giacominelli-Stuffler R, Angelucci CB, Liberatoscioli L, Cortese C, Dainese E, Maccarrone M. Giacominelli-Stuffler R, et al. Clin Biochem. 2009 Oct;42(15):1512-6. doi: 10.1016/j.clinbiochem.2009.07.006. Epub 2009 Jul 16. Clin Biochem. 2009. PMID: 19615988
DESIGN AND METHODS: 101 different human serum samples were genotyped for paraoxonase Q192R polymorphism by PCR restriction analysis, and evaluated spectrophotometrically with regard to paraoxon and 2-coumaranone hydrolytic activities. Both activities of paraoxonase …
DESIGN AND METHODS: 101 different human serum samples were genotyped for paraoxonase Q192R polymorphism by PCR restriction analysis, and eva …
Transcriptomic Responses of Fusarium verticillioides to Lactam and Lactone Xenobiotics.
Gao M, Gu X, Satterlee T, Duke MV, Scheffler BE, Gold SE, Glenn AE. Gao M, et al. Front Fungal Biol. 2022 Jun 20;3:923112. doi: 10.3389/ffunb.2022.923112. eCollection 2022. Front Fungal Biol. 2022. PMID: 37746160 Free PMC article.
Inspired by the induction of these two clusters upon exposure to 2-benzoxazolinone, RNA sequencing experiments were carried out by challenging F. verticillioides individually with 2-benzoxazolinone and three related chemical compounds, 2-oxindole, 2-coumaranone, and …
Inspired by the induction of these two clusters upon exposure to 2-benzoxazolinone, RNA sequencing experiments were carried out by challengi …
Study on the catalytic degradation of Acid Orange 7 and the potential mechanism by ferrous-percarbonate.
Huang F, Wang H, Ruan X. Huang F, et al. Water Environ Res. 2022 Oct;94(10):e10796. doi: 10.1002/wer.10796. Water Environ Res. 2022. PMID: 36278310
The produced intermediates through the degradation of AO7 were identified to include 2-coumaranone, 2-naphthol, phthalic acid, phthalimide, N-methylnaphthylamine, and 2-methylphenol. ...
The produced intermediates through the degradation of AO7 were identified to include 2-coumaranone, 2-naphthol, phthalic acid, …
Evidence supporting a 1,2-dioxetanone as an intermediate in the benzofuran-2(3H)-one chemiluminescence.
Ciscato LF, Bartoloni FH, Colavite AS, Weiss D, Beckert R, Schramm S. Ciscato LF, et al. Photochem Photobiol Sci. 2014 Jan;13(1):32-7. doi: 10.1039/c3pp50345c. Epub 2013 Oct 28. Photochem Photobiol Sci. 2014. PMID: 24162255
The mechanism of the chemiluminescent reaction of ethyl (5-fluoro-2-oxo-2,3-dihydrobenzofuran-3-yl) carbamate (a 2-coumaranone derivative) with a base and molecular oxygen was investigated. ...
The mechanism of the chemiluminescent reaction of ethyl (5-fluoro-2-oxo-2,3-dihydrobenzofuran-3-yl) carbamate (a 2-coumaranone …
Identification of benzofuro[2,3-b]quinoline derivatives as a new class of antituberculosis agents.
Yang CL, Tseng CH, Chen YL, Lu CM, Kao CL, Wu MH, Tzeng CC. Yang CL, et al. Eur J Med Chem. 2010 Feb;45(2):602-7. doi: 10.1016/j.ejmech.2009.10.050. Epub 2009 Nov 10. Eur J Med Chem. 2010. PMID: 19926361
The known 11-chlorobenzofuro[2,3-b]quinoline (3) was synthesized in a single step from anthranilic acid and 2-coumaranone in phosphorus oxychloride in 51% yield for the first time. ...
The known 11-chlorobenzofuro[2,3-b]quinoline (3) was synthesized in a single step from anthranilic acid and 2-coumaranone in p …
Lactone-derived carbon-centered radicals: formation and reactivity with oxygen.
Bejan EV, Font-Sanchis E, Scaiano JC. Bejan EV, et al. Org Lett. 2001 Dec 13;3(25):4059-62. doi: 10.1021/ol0167917. Org Lett. 2001. PMID: 11735584
[reaction: see text] Several lactones were examined to test the reactivity of carbon-centered radicals toward oxygen. Notably, the radical derived from 2-coumaranone (4) is unreactive toward oxygen, while 2-cuomaranone itself shows enhanced reactivity toward hydroge …
[reaction: see text] Several lactones were examined to test the reactivity of carbon-centered radicals toward oxygen. Notably, the radical d …
Antiplasmodial potential and GC-MS fingerprint of endophytic fungal extracts derived from Cameroonian Annona muricata.
Toghueo RMK, Kemgne EAM, Eke P, Kanko MIM, Dize D, Sahal D, Boyom FF. Toghueo RMK, et al. J Ethnopharmacol. 2019 May 10;235:111-121. doi: 10.1016/j.jep.2019.02.010. Epub 2019 Feb 6. J Ethnopharmacol. 2019. PMID: 30738118
Dynamic head space GC-MS analysis of ethyl acetate extracts of promising fungi revealed broad-spectrum antimicrobial compounds such as Penicidin, Aromadendrene, Ethyl p-methoxycinnamate, 2-Coumaranone and 2-Methyl resorcinol. CONCLUSION: These results have opened ne …
Dynamic head space GC-MS analysis of ethyl acetate extracts of promising fungi revealed broad-spectrum antimicrobial compounds such as Penic …
Bond dissociation energies for radical dimers derived from highly stabilized carbon-centered radicals.
Frenette M, Aliaga C, Font-Sanchis E, Scaiano JC. Frenette M, et al. Org Lett. 2004 Jul 22;6(15):2579-82. doi: 10.1021/ol049111j. Org Lett. 2004. PMID: 15255695
Analysis of the data yields the bond dissociation energy (BDE) for the central head-to-head C-C bond in these compounds. For example, for the dimer derived from 3-phenyl-2-coumaranone, BDE is 23.6 kcal/mol and the C-C bond length 1.596 A, a rather long value for a s …
Analysis of the data yields the bond dissociation energy (BDE) for the central head-to-head C-C bond in these compounds. For example, for th …
16 results