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Page 1
Co-formulants in plant protection products: An analytical approach to their determination by gas chromatography-high resolution mass accuracy spectrometry.
Maldonado-Reina AJ, López-Ruiz R, Garrido Frenich A, Arrebola FJ, Romero-González R. Maldonado-Reina AJ, et al. Talanta. 2021 Nov 1;234:122641. doi: 10.1016/j.talanta.2021.122641. Epub 2021 Jun 24. Talanta. 2021. PMID: 34364450 Free article.
Results showed that the applied methodology was able to detect these co-formulants at concentrations as low as 0.03 g/L (tert-butylbenzene), encompassing a wide concentration range, up to 9.63 g/L (pentamethylbenzene). Pentamethylbenzene was the only compound detect …
Results showed that the applied methodology was able to detect these co-formulants at concentrations as low as 0.03 g/L (tert-butylbenzene), …
What difference does a methyl group make: pentamethylbenzene?
Mudge M, Ng BK, Onie CJ, Bhadbhade M, Mole RA, Rule KC, Stampfl AP, Stride JA. Mudge M, et al. Chemphyschem. 2014 Dec 1;15(17):3776-81. doi: 10.1002/cphc.201402538. Epub 2014 Sep 11. Chemphyschem. 2014. PMID: 25212729
The crystal structure of pentamethylbenzene has been obtained for the first time with the use of synchrotron radiation, whilst the low-energy spectrum of lattice dynamics, dominated by the methyl group torsions, was obtained using inelastic neutron scattering. ...
The crystal structure of pentamethylbenzene has been obtained for the first time with the use of synchrotron radiation, whilst the lo …
[Synthetic studies on natural products with aromatic nitrogen heterocycles based on development of the methods for the formation of aryl carbon-nitrogen bond].
Okano K. Okano K. Yakugaku Zasshi. 2013;133(10):1065-78. doi: 10.1248/yakushi.13-00189. Yakugaku Zasshi. 2013. PMID: 24088350 Free article. Review. Japanese.
The utility of this reaction has been fully demonstrated through a total synthesis of yatakemycin, which features the regioselective ring opening of (S)-epichlorohydrin with 2,6-dibromophenyllithium species and the efficient deprotection of benzyl groups of aryl benzyl ether with …
The utility of this reaction has been fully demonstrated through a total synthesis of yatakemycin, which features the regioselective ring op …
Rate constants for the reactions of OH radicals with 1,2,4,5-tetramethylbenzene, pentamethylbenzene, 2,4,5-trimethylbenzaldehyde, 2,4,5-trimethylphenol, and 3-methyl-3-hexene-2,5-dione and products of OH + 1,2,4,5-tetramethylbenzene.
Aschmann SM, Arey J, Atkinson R. Aschmann SM, et al. J Phys Chem A. 2013 Mar 28;117(12):2556-68. doi: 10.1021/jp400323n. Epub 2013 Mar 18. J Phys Chem A. 2013. PMID: 23495920
Using a relative rate method, rate constants have been measured for the reactions of OH radicals with 1,2,4,5-tetramethylbenzene, pentamethylbenzene, 2,4,5-trimethylbenzaldehyde, 2,4,5-trimethylphenol and 3-methyl-3-hexene-2,5-dione at 298 2 K and atmospheric pressure of a …
Using a relative rate method, rate constants have been measured for the reactions of OH radicals with 1,2,4,5-tetramethylbenzene, pentame …
Solution-state mechanochromic luminescence of Pt(ii)-complexes displayed within micellar aromatic capsules.
Hashimoto Y, Katagiri Y, Tanaka Y, Yoshizawa M. Hashimoto Y, et al. Chem Sci. 2023 Nov 21;14(48):14211-14216. doi: 10.1039/d3sc04613c. eCollection 2023 Dec 13. Chem Sci. 2023. PMID: 38098700 Free PMC article.
Here we report that arylethynyl Pt(ii)-complexes with an NCN-pincer ligand are efficiently encapsulated by micellar aromatic capsules in water, through a simple grinding protocol with bent amphiphiles. When a bent pentamethylbenzene-based amphiphile is employed as an optim …
Here we report that arylethynyl Pt(ii)-complexes with an NCN-pincer ligand are efficiently encapsulated by micellar aromatic capsules in wat …
Theoretical study on degradation of polymethyl substituted benzenes by OH radicals in the atmosphere.
Zhao H, Wang S, Chenggang L, Tang Y, Pan Y. Zhao H, et al. Chemosphere. 2024 Mar;352:141243. doi: 10.1016/j.chemosphere.2024.141243. Epub 2024 Jan 19. Chemosphere. 2024. PMID: 38246501
As volatile organic compounds (VOCs), pentamethylbenzene (5-PeMB) and hexamethylbenzene (6-HeMB) are found widely in petroleum and coal tar. ...
As volatile organic compounds (VOCs), pentamethylbenzene (5-PeMB) and hexamethylbenzene (6-HeMB) are found widely in petroleum and co …
Total synthesis of (+)-yatakemycin.
Okano K, Tokuyama H, Fukuyama T. Okano K, et al. Chem Asian J. 2008 Feb 1;3(2):296-309. doi: 10.1002/asia.200700282. Chem Asian J. 2008. PMID: 18000998
The efficient and chemoselective debenzylation of aryl benzyl ether with BCl3 in the presence of pentamethylbenzene was developed. With these new methodologies, the subgram-scale synthesis of (+)-yatakemycin was achieved....
The efficient and chemoselective debenzylation of aryl benzyl ether with BCl3 in the presence of pentamethylbenzene was developed. Wi …
Total synthesis of (+)-yatakemycin.
Okano K, Tokuyama H, Fukuyama T. Okano K, et al. J Am Chem Soc. 2006 Jun 7;128(22):7136-7. doi: 10.1021/ja0619455. J Am Chem Soc. 2006. PMID: 16734447
The synthesis features the regioselective ring opening of (S)-epichlorohydrin with 2,6-dibromophenyllithium species, the mild copper-mediated aryl amination utilizing the combination of CuI and CsOAc, and the efficient deprotection of benzyl groups of aryl benzyl ether with BCl3 …
The synthesis features the regioselective ring opening of (S)-epichlorohydrin with 2,6-dibromophenyllithium species, the mild copper-mediate …
Screening of 1300 organic micro-pollutants in groundwater from Beijing and Tianjin, North China.
Kong L, Kadokami K, Duong HT, Chau HTC. Kong L, et al. Chemosphere. 2016 Dec;165:221-230. doi: 10.1016/j.chemosphere.2016.08.084. Epub 2016 Sep 30. Chemosphere. 2016. PMID: 27657814
Chemicals with a frequency of detection over 70% were 2-ethyl-1-hexanol (median concentration 152 ng L(-1)), benzyl alcohol (582 ng L(-1)), 2-phenoxy-ethanol (129 ng L(-1)), acetophenone (74 ng L(-1)), pentamethylbenzene (51 ng L(-1)), nitrobenzene (40 ng L(-1)) and dimeth …
Chemicals with a frequency of detection over 70% were 2-ethyl-1-hexanol (median concentration 152 ng L(-1)), benzyl alcohol (582 ng L(-1)), …
Analysis of polycyclic aromatic hydrocarbons using desorption atmospheric pressure chemical ionization coupled to a portable mass spectrometer.
Jjunju FP, Maher S, Li A, Badu-Tawiah AK, Taylor S, Cooks RG. Jjunju FP, et al. J Am Soc Mass Spectrom. 2015 Feb;26(2):271-80. doi: 10.1007/s13361-014-1029-2. Epub 2014 Dec 13. J Am Soc Mass Spectrom. 2015. PMID: 25503470
Using a rapid, high throughput, miniature, handheld mass spectrometer, several alkyl substituted benzenes and PAHs (i.e., 1,2,3,5-tetramethylbenzene, pentamethylbenzene, hexamethylbenzene, fluoranthene, anthracene, benzo[k]fluoranthene, dibenz[a,h]anthracene, acenaphthene, …
Using a rapid, high throughput, miniature, handheld mass spectrometer, several alkyl substituted benzenes and PAHs (i.e., 1,2,3,5-tetramethy …
29 results