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Journal articles on the topic '3-hexanedione'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Towell, Todd L., Linda Shell, Karen Dyer Inzana, Bernard S. Jortner, and Marion Ehrich. "Electrophysiological Detection of the Neurotoxic Effects of Acrylamide and 2,5-Hexanedione on the Rat Sensory System." International Journal of Toxicology 19, no. 3 (2000): 187–93. http://dx.doi.org/10.1080/10915810050074955.

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Brain stem auditory evoked potentials (BAEP) and somatosensory evoked potentials (SEP), recorded from subcutaneously placed electrodes in anesthetized rats, were used to detect neurotoxic effects of acrylamide and 2,5-hexanedione on the sensory nervous system. Both neurotoxicants were administered for 21 days by the intraperitoneal route, using dosages of 20 mg/kg/day for acrylamide and 350 mg/kg/day for 2,5-hexanedione. Recordings were made before and 1, 2, and 3 weeks after dosing was initiated. Both food-restricted and ad libitum-fed rats served as controls. Results demonstrated that SEP wa

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2

Pyle, S. J., V. Amarnath, D. G. Graham, and D. C. Anthony. "THE EFFECTS OF 2,5-HEXANEDIONE AND 3-ACETYL-2,5-HEXANEDIONE ON NEUROFILAMENT TRANSPORT." Journal of Neuropathology and Experimental Neurology 49, no. 3 (1990): 294. http://dx.doi.org/10.1097/00005072-199005000-00106.

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3

DeCaprio, Anthony P., Elizabeth A. Kinney, and Richard M. LoPachin. "Comparative Covalent Protein Binding of 2,5-Hexanedione and 3-Acetyl-2,5-Hexanedione in the Rat." Journal of Toxicology and Environmental Health, Part A 72, no. 14 (2009): 861–69. http://dx.doi.org/10.1080/15287390902959508.

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4

Ren, Dezhang, Zhiyuan Song, Lu Li, Yunjie Liu, Fangming Jin, and Zhibao Huo. "Production of 2,5-hexanedione and 3-methyl-2-cyclopenten-1-one from 5-hydroxymethylfurfural." Green Chemistry 18, no. 10 (2016): 3075–81. http://dx.doi.org/10.1039/c5gc02493e.

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5

Karakaya, A., B. Yücesoy, S. Burgaz, HU Sabir, and AE Karakaya. "Some immunological parameters in workers occupationally exposed to n-hexane." Human & Experimental Toxicology 15, no. 1 (1996): 56–58. http://dx.doi.org/10.1177/096032719601500110.

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1 To estimate the quantitative relation between exposure to airborne n-hexane and various markers of immune function, 35 male workers were examined and compared with unexposed controls. 2 Urinary 2,5-hexanedione concentrations were signifi cantly higher in the exposed group than in the unexposed. 3 A significant suppression was observed in the serum immunoglobulin (IgG, IgM and IgA) levels between two populations. Also, a significant correlation was found between urinary 2,5-hexanedione concentrations and serum Ig level of the exposed group. 4 No significant difference between white blood cell

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6

Soriano, T., M. Menéndez, P. Sanz, and M. Repetto. "Method for the simultaneous quantification of n-hexane metabolites: application to n-hexane metabolism determination." Human & Experimental Toxicology 15, no. 6 (1996): 497–503. http://dx.doi.org/10.1177/096032719601500607.

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1 The described analytical procedure permits the simultaneous determination of the main n-hexane meta bolites in urine. 2-Hexanone, 2-hexanol, 2, 5-hexanediol and 2, 5-hexanedione, were chosen to dose the rats used in this study. All urine samples were collected and analysed on a daily basis, before and after acidic hydrolysis (pH 0.1) by GC/MS. 2-Hexanone, 2, 5-dimethylfurane, γ-valerolac tone and 2, 5-hexanedione were determined before hydro lysis ; 2-hexanol and 2, 5-hexanediol, after hydrolysis; and 5-hydroxy-2-hexanone and 4, 5-dihydroxy-2-hexanone were calculated by the difference betwee

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7

R., N. Prasad, Chaudhary (née Jangir) Sarita, and Jain Amita. "CoII and NiII complexes of 12-membered dioxadiazamacrocycles derived from -diketones and 1,8-diamino-3,6-dioxaoctane." Journal of Indian Chemical Society Vol. 91, Apr 2014 (2014): 771–75. https://doi.org/10.5281/zenodo.5718187.

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Department of Chemistry, University of Rajasthan, Jaipur-302 055, Rajasthan, India E-mail : rnp_1949@yahoo.co.in Manuscript received 07 February 2013, revised 05 August 2013, accepted 08 August 2013 1 + 1 Cyclocondensation of 1,8-diamino-3,6-dioxaoctane with <strong>α</strong>-diketones such as 2,3-butanedione, 2,3- pentanedione, 2,3-hexanedione, 3,4-hexanedione, 1-phenylpropane-1,2-dione or benzil in the presence of Co<sup>II </sup>or Ni<sup>II</sup> as template affords complexes of the type [ML(NO<sub>3</sub> )<sub>2</sub> ] [where M = Co, Ni and L = 12-membered N<sub>2</sub>O<sub>2</s

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8

R., N. Prasad, and Sharma Priyanka. "Synthesis and characterization of NiII, CuII and ZnII complexes of N,O-mixed donor macrocycles derived from a-diketones and 1,13-diamino-4, 7,1 0-trioxatridecane." Journal of Indian Chemical Society Vol. 89, Jul 2012 (2012): 865–72. https://doi.org/10.5281/zenodo.5766191.

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Department of Chemistry, University of Rajasthan, Jaipur-302 055, Rajasthan, India <em>E-mail</em> : rnp_1949@yahoo.co.in <em>Manuscript received 28 July 2011, accepted 21 December 2011</em> Ni<sup>II</sup>, Cu<sup>II</sup> and Zn<sup>II</sup> complexes or the type [MLCI<sub>2</sub>) (M = Ni and Zn) and [CuL(N0<sub>3</sub>)<sub>2</sub>) (L = 17-membered N<sub>2</sub>O<sub>3</sub> macrocycle) have been synthesized by (1 +I] cyclocondensation or 1,13-diaminotrioxatridecane with a-diketones such as 2,3-butanedione, 2,3-pentanedione, 2,3-hexanedione and 3,4-hexanedione in the presence or

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9

R., N. Prasad, Chaudhary Sarita, and Jain Amita. "Synthesis and spectral studies of chromium(III) and iron(III) complexes of trioxadiazamacrocycles." Journal Of Indian Chemical Society Vol. 91, Jan 2014 (2014): 137–41. https://doi.org/10.5281/zenodo.5746771.

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Department of Chemistry, University of Rajasthan, Jaipur-302 055, Rajasthan, India <em>E-mail</em> : rnp_1949@yahoo.co.in <em>Manuscript received 12 October 2011, revised 12 February 2012, accepted 13 February 2013</em> 1+1 Cyclocondensation of 1,13-diamino-4,7,10-trioxatridecane and <strong>α</strong>-diketones such as 2,3-butanedione, 2,3- pentanedione, 2,3-hexanedione, 3,4-hexanedione, 1-phenylpropane-l,2-dione and benzil in the presence of <strong>Cr<sup>III</sup></strong> and <strong>Fe<sup>III</sup></strong> as templates afforded macrocyclic complexes of the type [<strong>ML(NO<sub

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10

R.N., Prasad, and Sharma Nisha. "Alkaline earth metal complexes of 17-membered oxa-azamacrocycles derived from a-diketones and 1, 13-diamino-4, 7, 10-trioxatridecane." Journal of Indian Chemical Society Vol. 88, Nov 2011 (2011): 1667–72. https://doi.org/10.5281/zenodo.5791618.

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Department of Chemistry, University of Rajasthan, Jaipur-302 055, Rajasthan, India <em>E-mail</em> : rnp _1949@yahoo.co.in <em>Manuscript received 13 July 2010, revised 07 April 2011, accepted 20 April 2011</em> 1 + 1 Cyclocondensation or 1,13-diamino-4,7,10-trioxatridecane with a-diketones such as 2,3-butanedione, 2,3-pentanedione, 2,3-hexanedione and 3,4-hexanedione in tbe presence of Mg<sup>2</sup>, Ca<sup>2</sup>+, Sr<sup>2</sup>+ and Ba<sup>2</sup>+ ions as templates yields a series of complexes or the type [MLX]X (where M = Mg<sup>II</sup>, X = CJ·; M = ca<sup>II</sup>, Sr<sup>II<

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11

R.N., Prasad, and Sharma Monika. "NiII complexes of large ring tetraazamacrocycles derived from 3,4-hexanedione and diaminoalkanes." Journal of Indian Chemical Society Vol. 83, Dec 2006 (2006): 1260–62. https://doi.org/10.5281/zenodo.5834107.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India E-mail : prasadraghunandan@yahoo.com <em>Manuscript received 19 April 2006, accepted 19 September 2006</em> Ni<sup>II</sup> complexes of composition [NiL(NO<sub>3</sub>)<sub> 2</sub>] (where L = tetraazamacrocycle having 14-. to 28-memhered ring) has been synthesized by template condensation of 3,4-hexanedione with diaminoalkanes. These have been characterized by elemental analyses, molar conductances, magnetic moments and IR, electronic and FAB mass spectra.

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12

Obruchnikova, Natalia V., and Oleg A. Rakitin. "4-(2,5-Dimethyl-1H-pyrrol-1-yl)-1,2,5-oxadiazol-3-amine." Molbank 2023, no. 3 (2023): M1700. http://dx.doi.org/10.3390/m1700.

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1,2,5-Oxadiazol-3-amines with a heterocyclic substituent in the 4-position are being intensively investigated as compounds with valuable pharmacological activity. In this communication, the reaction of 1,2,5-oxadiazole-3,4-diamine with 2,5-hexanedione was shown to selectively give 4-(2,5-dimethyl-1H-pyrrol-1-yl)-1,2,5-oxadiazol-3-amine as a product of the Paal–Knorr reaction. The structure of the synthesized compound was established by elemental analysis, high-resolution mass spectrometry, 1H and 13C NMR, and IR spectroscopy.

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13

Jasinski, Jerry P., Jason R. Bianchani, Juan Cueva, Fathy A. El-Saied, Ahmed A. El-Asmy, and Douglas X. West. "Spectral and Structural Studies of the Copper(II) Complexes of 3, 4-Hexanedione Bis(3-azacyclothiosemicarbazones)." Zeitschrift für anorganische und allgemeine Chemie 629, no. 2 (2003): 202–6. http://dx.doi.org/10.1002/zaac.200390032.

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14

R., N. Prasad, and Mathur Mala. "Template synthesis of CrIII, FeIII, CoII, NiII, CuII and ZnII complexes of 14- and 16-metnbered tetraazamacrocycles." Journal of Indian Chemical Society Vol. 80, Sep 2003 (2003): 803–6. https://doi.org/10.5281/zenodo.5837235.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, India <em>E-mail</em>: prasadraghunandan@yahoo.com <em>Manuscript received 3 June 2002, revised 12 March 2003. accepted 22 May 2003</em> Complexes of the types [ML(NO<sub>3</sub>)<sub>2</sub>]NO<sub>3</sub> (M = Cr<sup>III</sup>, Fe<sup>III</sup>), [ML(NO<sub>3</sub>)<sub>2</sub>] (M =Co<sup>II</sup>, Ni<sup>II</sup>), [CuL]CI<sub>2</sub> and [ZnLCI<sub>2</sub>] (where L= tetraazamacrocycle having 14- or 16-membered ring) have been synthesized by the condensation of 2,3-hexanedione with 1,3-diaminopropane or 1,4-diaminobutane in

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15

Prasad, Raghu, and Nitin Gupta. "Termplate synthesis of Mn(II) complexes of tetraazamacrocycles derived from diaminoalkanes and 3, 4-hexanedione or benzil." Journal of the Serbian Chemical Society 68, no. 6 (2003): 455–61. http://dx.doi.org/10.2298/jsc0306455p.

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Template condensation of ?-diketones, such as 3,4-hexanedione or benzil with 1,n-diaminoalkanes (where n = 4, 5, 6, 7, 8, 9, 10 or 12) in the presence of Mn(II) resulted in the formation of complexes of the type [MnL(NO3)]NO3 (where L = 16 to 32-membered macrocycle). These complexes have been characterized by elemental analyses, conductances, magnetic measurements, as well as IR and electronic spectra.

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16

R., N. Prasad, and Upadhyay Ashish. "Chromium(III), iron(III) and cobalt(II) complexes of 14- and 16-membered tetraazamacrocycles." Journal of Indian Chemical Society Vol. 83, Sep 2006 (2006): 857–60. https://doi.org/10.5281/zenodo.5829746.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail</em>: prasadraghunandan@yahoo.com <em>Manuscript received 12 December 2003, revised 3 April 2006, accepted 26 May 2006</em> 2+2 Cyclocondensation of 3,4-hexanedione with 1,3-diaminopropane or 1,4-diaminobutane in the presence of Cr<sup>III</sup>, Fe<sup>III </sup>and Co<sup>II</sup>as templates has yielded complexes of the types [ML(NO<sub>3</sub>)<sub>2</sub>]NO<sub>3</sub> and [CoL(NO<sub>3</sub>)<sub>2</sub>] [where M = Cr<sup>III</sup>, Fe<sup>III</sup> and L = 2,3,9,10- tetruethyl-1,4,8

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17

R., N. Prasad, and Mathur Mala. "CrIII, FeIII, CoII, NiII, CuII and ZnII complexes of 2,11-dimethyl-3,12-di-npropyl- 1,4,10,13-tetraazacyclooctadeca-1,3,10,12-tetraene." Journal of Indian Chemical Society Vol. 88, Nov 2011 (2011): 1661–65. https://doi.org/10.5281/zenodo.5791612.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail</em> : rnp_1949@yahoo.co.in <em>Manuscript received 14 January 2009, revised 07 April 2011, accepted 20 April 2011</em> Complexes of the types [ML(N0<sub>3</sub>)<sub>2</sub>]N0<sub>3</sub> {where M = Cr<sup>III</sup> or Fe<sup>III</sup>}, [ML(N0<sub>3</sub>)<sub>2</sub>] {where M = Co<sup>II</sup> or Ni<sup>II</sup> }, [CuL]CI<sub>2</sub> and [ZnLCI<sub>2</sub>] (where L = 2,11-dimethyl-3,12-di-1!-propyl-1,4,10,13-tetraazacyclooctadeca-1,3,10,12-tetraene) have been synthesized by condensation of 2,3-

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18

R., N. Prasad, and Mathur Mala. "CrIII, FeIII, CoII, NiIII, CuIII and ZnIII complexes of 26- and 28-membered tetraazamacrocycles." Journal of Indian Chemical Society Vol. 83, Dec 2006 (2006): 1208–13. https://doi.org/10.5281/zenodo.5833937.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail </em>: prasadraghunandan@yahoo.com <em>Manuscript received 17 June 2003, revised 11 September 2006, accepted 25 September 2006</em> 2+2 Cyclocondensation of 2,3-hexanedione with 1,9-diaminononane or 1,10-diaminodecane in the presence of metal ions as templates resulted in the formation of complexes of the types [ML(NO<sub>3</sub>)<sub>2</sub>]NO<sub>3</sub> {M = Cr<sup>III</sup>, Fe<sup>III</sup>}, [ML(NO<sub>3</sub>)<sub>2</sub>] {M = Co<sup>II</sup>, Ni<sup>II</sup>}, (CuL]CI<sub>2</sub> and (ZnLCl<

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19

R., N. Prasad, та Jain Amita. "Synthesis and spectral characterization of CrIII and FeIII complexes of dioxadiazamacrocycles derived from α-diketones and 1,8-diamino-3,6-dioxaoctane". Journal of Indian Chemical Society Vol. 84, Sep 2007 (2007): 850–55. https://doi.org/10.5281/zenodo.5826844.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail</em> : rnp_1949@yahoo.co.in <em>Manuscript received 22 March 2007, revised 18 June 2007, accepted 25 June 2007</em> Chromium(lll) and iron(lll) complexes of the type [ML(NO<sub>3</sub>)<sub>2</sub>]NO<sub>3</sub> (where M = Cr<sup>III</sup>, Fe<sup>III</sup>, L = 12-membered macrocycle having N<sub>2</sub>O<sub>2</sub> donor set) have been synthesized by cyclocondensation of 1,8-diamino-3,6- ioxaoctane with α diketones such as 2,3-butanedione, 2,3-pentanedione, 2,3-hexanedione, 3,4- exanedione,

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20

Ahmed, Zubair, Rafael dos Santos Carvalho, Aline Magalhães dos Santos, et al. "Highly Luminescent Europium(III) Complexes in Solution and PMMA-Doped Films for Bright Red Electroluminescent Devices." Molecules 28, no. 11 (2023): 4371. http://dx.doi.org/10.3390/molecules28114371.

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This paper reports the synthesis, structure, photophysical, and optoelectronic properties of five eight-coordinate Europium(III) ternary complexes, namely, [Eu(hth)3(L)2], bearing 4,4,5,5,6,6,6-heptafluoro-1-(2-thienyl)-1,3-hexanedione (hth) as a sensitizer and L = H2O (1), dpso (diphenyl sulphoxide, 2), dpsoCH3 (4,4′-dimethyl diphenyl sulfoxide, 3), dpsoCl (bis(4-chlorophenyl)sulphoxide, 4), and tppo (triphenylphosphine oxide, 5) as co-ligands. The NMR and the crystal structure analysis confirmed the eight-coordinate structures of the complexes in solution and in a solid state. Upon UV-excita

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21

Jortner, Bernard S., and Marion Ehrich. "Comparison of toxicities of acrylamide and 2,5‐hexanedione in hens and rats on 3‐week dosing regimens." Journal of Toxicology and Environmental Health 39, no. 4 (1993): 417–28. http://dx.doi.org/10.1080/15287399309531762.

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22

Sun, Yan, Yuan Lin, Hong Li, Jin Liu, Xiaohua Sheng, and Wenchang Zhang. "2,5-Hexanedione induces human ovarian granulosa cell apoptosis through BCL-2, BAX, and CASPASE-3 signaling pathways." Archives of Toxicology 86, no. 2 (2011): 205–15. http://dx.doi.org/10.1007/s00204-011-0745-7.

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23

CHEN, Ruolin, Shuang LIU, Fengyuan PIAO, et al. "2,5-hexanedione induced apoptosis in mesenchymal stem cells from rat bone marrow via mitochondria-dependent caspase-3 pathway." Industrial Health 53, no. 3 (2015): 222–35. http://dx.doi.org/10.2486/indhealth.2014-0182.

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24

Cui, Ning, Shanxia Li, Xiulan Zhao, et al. "Expression of Bcl-2, Bax and Caspase-3 in Nerve Tissues of Rats Chronically Exposed to 2,5-hexanedione." Neurochemical Research 32, no. 9 (2007): 1566–72. http://dx.doi.org/10.1007/s11064-007-9359-0.

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25

Sun, Daolai, Shigenori Chiba, Yasuhiro Yamada, and Satoshi Sato. "Vapor-phase intramolecular aldol condensation of 2,5-hexanedione to 3-methylcyclopent-2-enone over ZrO2-supported Li2O catalyst." Catalysis Communications 92 (March 2017): 105–8. http://dx.doi.org/10.1016/j.catcom.2017.01.010.

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26

Li, Shuang-yue, Yuan Qi, Shu-hai Hu, et al. "Mesenchymal stem cells-conditioned medium protects PC12 cells against 2,5-hexanedione-induced apoptosis via inhibiting mitochondria-dependent caspase 3 pathway." Toxicology and Industrial Health 33, no. 2 (2016): 107–18. http://dx.doi.org/10.1177/0748233715598267.

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Studies suggested that the conditioned medium of mesenchymal stem cells (MSC-CM) inhibited the increased apoptosis in various cells. However, there are no reports underlying the protection of MSC-CM against 2,5-hexanedione (HD)-induced apoptosis in neural cells. In the present study, the viability was observed in PC12 cells that received HD alone or with MSC-CM by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Apoptosis was estimated by Hoechst 33342 staining and flow cytometry. Mitochondrial transmembrane potential was examined by rhodamine 123. Moreover, we investigated

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Nishimura, Shun, Shintaro Ohmatsu та Kohki Ebitani. "Selective synthesis of 3-methyl-2-cyclopentenone via intramolecular aldol condensation of 2,5-hexanedione with γ-Al2O3/AlOOH nanocomposite catalyst". Fuel Processing Technology 196 (грудень 2019): 106185. http://dx.doi.org/10.1016/j.fuproc.2019.106185.

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28

Break, Mohammed Khaled Bin, Tan Yew Fung, May Zie Koh, et al. "Synthesis, Crystal Structure, Antibacterial and In Vitro Anticancer Activity of Novel Macroacyclic Schiff Bases and Their Cu (II) Complexes Derived from S-Methyl and S-Benzyl Dithiocarbazate." Molecules 28, no. 13 (2023): 5009. http://dx.doi.org/10.3390/molecules28135009.

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A series of novel macroacyclic Schiff base ligands and their Cu (II) complexes were synthesised via reacting dicarbonyls of varying chain lengths with S-methyl dithiocarbazate (SMDTC) and S-benzyl dithiocarbazate (SBDTC) followed by coordination with Cu (II) ions. X-ray crystal structures were obtained for compound 4, an SBDTC-diacetyl analogue, and Cu7, an SMDTC-hexanedione Cu (II) complex. Anticancer evaluation of the compounds showed that Cu1, an SMDTC-glyoxal complex, demonstrated the highest cytotoxic activity against MCF-7 and MDA-MB-231 breast cancer cells with IC50 values of 1.7 µM and

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He, Yan, Zheng Zhou, and Haixiang Han. "Steric Effects of Alcohols on the [Mn4O4] Cubane-Type Structures." Crystals 14, no. 5 (2024): 478. http://dx.doi.org/10.3390/cryst14050478.

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[M4O4] (M = 3d transition metal) represents an interesting class of compounds featuring cubane-type molecular structures, and particularly, [Mn4O4] cubanes or their derivatives attract much attention by virtue of their potential applications as single-molecule magnets (SMMs) or catalysts. However, the rational design of desired cubane-related structures is still a challenging subject due to the lack of readily available methods to effectively tune the construction patterns of the molecule assembly. In this work, we report the employment of different alcohols to prepare three cubane-related mol

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30

Sun, Jingru, Yanlong Li, Xiaoyu Cheng, et al. "Metabolomic Analysis of Flavour Development in Mung Bean Foods: Impact of Thermal Processing and Storage on Precursor and Volatile Compounds." Foods 14, no. 5 (2025): 797. https://doi.org/10.3390/foods14050797.

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Consumers prefer mung beans for their low allergenicity and nutritional benefits. However, flavour development in mung bean foods has been problematic, with beany flavour being a limiting factor. Hot processing is crucial in forming mung bean flavours, and storage-induced changes in flavour precursors directly impact the taste post-processing. This study used metabolomics to analyse the effects of hot processing (baking and cooking) on mung bean flavour and differences after storage. A total of 131 flavour precursors and 45 volatile substances were identified across six sample groups. The resu

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Yang, Jinghe, Hongmei Ge, Nianqin Jie, Xuezhen Ren, Changlun Tong, and Jingzun Wang. "Study of the fluorescence system thulium–bis(1′-phenyl-3′-methyl-5′-pyrazol-4′-one) hexanedione–cetyltrimethylammonium bromide and its analytical application." Analyst 120, no. 6 (1995): 1705–8. http://dx.doi.org/10.1039/an9952001705.

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32

Pendergrass, Stephanie M., and Jeffrey A. Cooper. "Sampling and Analytical Method for Alpha-Dicarbonyl Flavoring Compounds via Derivatization witho-Phenylenediamine and Analysis Using GC-NPD." Scientifica 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/9059678.

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A novel methodology is described for the sampling and analysis of diacetyl, 2,3-pentanedione, 2,3-hexanedione, and 2,3-heptanedione. These analytes were collected ono-phenylenediamine-treated silica gel tubes and quantitatively recovered as the corresponding quinoxaline derivatives. After derivatization, the sorbent was desorbed in 3 mL of ethanol solvent and analyzed using gas chromatography/nitrogen-phosphorous detection (GC/NPD). The limits of detection (LOD) achieved for each analyte were determined to be in the range of 5–10 nanograms/sample. Evaluation of the on-tube derivatization proce

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Xu, Guozhang, and Lawrence M. Sayre. "Cross-Linking of Proteins by 3-(Trifluoromethyl)-2,5-hexanedione. Model Studies Implicate an Unexpected Amine-Dependent Defluorinative Substitution Pathway Competing with Pyrrole Formation†." Journal of Organic Chemistry 67, no. 9 (2002): 3007–14. http://dx.doi.org/10.1021/jo011101y.

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34

Liang, Yuan, Haiyong Wang, Haosheng Xin, et al. "Selective Cellulose Hydrogenolysis to 2,5-Hexanedione and 1-Hydroxy-2-hexanone Using Ni@NC Combined with H₃PO₄." ACS Sustainable Chemistry & Engineering 9, no. 46 (2021): 15394–405. http://dx.doi.org/10.1021/acssuschemeng.1c03858.

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35

Barbera, Vincenzina, Andrea Bernardi, Alberto Palazzolo, Alessandro Rosengart, Luigi Brambilla, and Maurizio Galimberti. "Facile and sustainable functionalization of graphene layers with pyrrole compounds." Pure and Applied Chemistry 90, no. 2 (2018): 253–70. http://dx.doi.org/10.1515/pac-2017-0708.

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AbstractA facile and sustainable functionalization of graphene layers was performed with pyrrole compounds (PyC) prepared through the Paal–Knorr reaction of a primary amine with 2,5-hexanedione. A good number of primary amines were used: hexanamine, dodecanamine, octadecanamine, 2-aminoacetic acid, 2-amino-1,3-propanediol, 3-(triethoxysilyl)propan-1-amine. The reactions were characterized by good yield, up to 96%, and indeed satisfactory atom efficiency, up to 80%. The functionalization of graphene layers was obtained by mixing PyC with a high surface area graphite and heating at a temperature

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Locatelli, Daniele, Vincenzina Barbera, Luigi Brambilla, Chiara Castiglioni, Annalisa Sironi, and Maurizio Galimberti. "Tuning the Solubility Parameters of Carbon Nanotubes by Means of Their Adducts with Janus Pyrrole Compounds." Nanomaterials 10, no. 6 (2020): 1176. http://dx.doi.org/10.3390/nano10061176.

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The solubility parameters of multiwalled carbon nanotubes (CNTs) was tuned via their chemical modification with pyrrole compounds (PyCs), by means of a simple and sustainable methodology. PyCs were synthesized with high atom efficiency through the Paal–Knorr reaction of primary amines with 2,5-hexanedione, in the absence of solvents and catalysts. Methylamine, 1-dodecylamine, 2-amino-1,3-propanediol, and 3-(triethoxysilyl)propan-1-amine were selected. PyCs are characterized by two moieties, the pyrrole ring and the substituent of the nitrogen atom, and can be considered as Janus molecules. The

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37

Nishimura, Shun, Son Dinh Le, Yusaku Asai, Natsuki Takahashi, Maho Endo, and Shintaro Ohmatsu. "Boehmite-derived Aluminum Oxide Catalyst for a Continuous Intramolecular Aldol Condensation of 2,5-Hexanedione to 3-Methyl-2-cyclopentenone in a Liquid-flow Reactor System." Chemistry Letters 51, no. 2 (2022): 131–34. http://dx.doi.org/10.1246/cl.210616.

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Hanks, Lawrence M., Judith A. Mongold-Diers, Robert F. Mitchell, et al. "The Role of Minor Pheromone Components in Segregating 14 Species of Longhorned Beetles (Coleoptera: Cerambycidae) of the Subfamily Cerambycinae." Journal of Economic Entomology 112, no. 5 (2019): 2236–52. http://dx.doi.org/10.1093/jee/toz141.

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Abstract We present research on the chemical ecology of 14 species of longhorned beetles (Coleoptera: Cerambycidae), in four tribes of the subfamily Cerambycinae, conducted in east-central Illinois over 8 yr. Adult males produce aggregation-sex pheromones that attract both sexes. Twenty independent field bioassays explored the pheromone chemistry of the species and tested the possible attractive or antagonistic effects of compounds that are not produced by a given species, but are pheromone components of other species. Analyses of beetle-produced volatiles revealed compounds that had not been

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Stawicka, Katarzyna, and Maria Ziolek. "Tris(2-Aminoethyl)Amine/Metal Oxides Hybrid Materials—Preparation, Characterization and Catalytic Application." Molecules 25, no. 20 (2020): 4689. http://dx.doi.org/10.3390/molecules25204689.

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Three different metal oxides (basic MgO, basic-acidic Al2O3 and acidic-basic Nb2O5) characterized by comparable surface areas (MgO—130 m2/g; Al2O3—172 m2/g and Nb2O5—123 m2/g) and pore systems (domination of mesopores with narrow pore size distribution) were modified with tris(2-aminoethyl)amine (TAEA) via two methods: (i) direct anchoring of amine on metal oxide and (ii) anchoring of amine on metal oxide functionalized with (3-chloropropyl)trimethoxysilane. The obtained hybrid materials were characterized in terms of effectiveness of modifier anchoring (elemental analysis), their structural/t

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ROSIEPEN, GIESA, ROBERT E. CHAPIN, and Priv ‐Doz Dr GERHARD F. WEINBAUER. "The Duration of the Cycle of the Seminiferous Epithelium is Altered by Administration of 2,5‐Hexanedione in the Adult Sprague‐Dawley Rat." Journal of Andrology 16, no. 2 (1995): 127–35. http://dx.doi.org/10.1002/j.1939-4640.1995.tb01744.x.

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ABSTRACT: The duration of the cycle of the seminiferous epithelium is believed to be under genetic control rather than being influenced by other factors. However, the frequencies of certain spermatogenic stages—reflecting their relative durations—can be altered under various conditions including treatment with the n‐hexane metabolite, 2,5‐hexanedione (HD). To investigate whether HD administration alters the duration of the spermatogenic process, adult Sprague‐Dawley rats were exposed to vehicle (n = 20) or 1% HD dissolved in the drinking water (n = 40) throughout a period of 29 days. On day 17

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Latifi, Elnaz, Austin D. Marchese, Margaret C. W. Hulls, Dmitriy V. Soldatov, and Marcel Schlaf. "[Ru(triphos)(CH3CN)3](OTf)2 as a homogeneous catalyst for the hydrogenation of biomass derived 2,5-hexanedione and 2,5-dimethyl-furan in aqueous acidic medium." Green Chemistry 19, no. 19 (2017): 4666–79. http://dx.doi.org/10.1039/c7gc01956d.

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Tong, Changlun, Weiping Liu, and Yan Zhu. "Study on the co-luminescence system of Dy–Gd–1,6-bis(1′- phenyl-3′-methyl-5′-pyrazol-4′-one)hexanedione– cetyltrimethylammonium bromide and its analytical application." Analyst 126, no. 7 (2001): 1168–71. http://dx.doi.org/10.1039/b009577j.

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43

DeCaprio, Anthony P., Robert G. Briggs, Stephen J. Jackowski, and James C. S. Kim. "Comparative neurotoxicity and pyrrole-forming potential of 2,5-hexanedione and perdeuterio-2,5-hexanedione in the rat." Toxicology and Applied Pharmacology 92, no. 1 (1988): 75–85. http://dx.doi.org/10.1016/0041-008x(88)90229-3.

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Prasad, R. N., M. Agrawal, and S. Malhotra. "Ca(II) complexes of tetraazamacrocycles derived from 3, 4-hexenedione and diaminoalkanes." Journal of the Serbian Chemical Society 69, no. 8-9 (2004): 661–68. http://dx.doi.org/10.2298/jsc0409661p.

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Ca(II) macrocyclic complexes [(Et4[n]tetraeneN4)CaX2]?(where n = 14, 16, 20 24, 32, X = Cl-, NCS-) have been synthesized via cyclocondensation of 3,4-hexanedione with aliphatic diamines, such as 1,3-diaminopropane 1,4-diaminobutane, 1,6-diaminohexane, 1,8-diaminooctane or 1,12-diaminododecane. The synthesized complexes were characterized by elemental analyses, conductance measurements and IR and 1H-NMR spectroscopy.

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Horan, Kelly L., Joseph Eichberg, Liliana N. Berti-Mattera, and Richard M. LoPachin. "Hexanedione effects on protein phosphorylation in rat peripheral nerve." Brain Research 491, no. 2 (1989): 366–70. http://dx.doi.org/10.1016/0006-8993(89)90072-3.

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Lapadula, Daniel M., Elizabeth Suwita, and Mohamed B. Abou-Donia. "Evidence for multiple mechanisms responsible for 2,5-hexanedione-induced neuropathy." Brain Research 458, no. 1 (1988): 123–31. http://dx.doi.org/10.1016/0006-8993(88)90503-3.

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RALSTON, W. "Potentiation of 2,5-hexanedione neurotoxicity by methyl ethyl ketone*1, *2." Toxicology and Applied Pharmacology 81, no. 2 (1985): 319–27. http://dx.doi.org/10.1016/0041-008x(85)90169-3.

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R., N. Prasad, and Mathur Mala. "Synthesis and characterization of CrIII, FeIII, CoII, NiII, Cull and ZnII complexes of 2, 14-dimethyl-3, 15-di-n-propyl-1 ,4,13, 16- tetraazacyclotetracosa-1 ,3, 13,15-tetraene." Journal of Indian Chemical Society Vol. 88, Mar 2011 (2011): 415–19. https://doi.org/10.5281/zenodo.5766030.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail</em> : rnp_1949@yahoo.co.in <em>Manuscript received 31 December 2008, revised 08 July 2010, accepted 20 July 2010</em> Cr<sup>III</sup>, Fe<sup>III</sup>, Con, Ni<sup>II</sup>, Cu<sup>II</sup> and Zn<sup>II</sup> complexes of a 24-membered tetraazamacrocycle, 2,14-dimethyl-3,15-di-n-propyl-1,4,13,16-tetraazacyclotetracosa-1,3,13,15-tetraene, have been prepared by 2+2 cyclocondensation of 2,3-hexanedione and 1,8-diaminooctane in the presence of metal ions as templates. The complexes have been character

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O'CONNOR, Tania, Linda S. IRELAND, David J. HARRISON, and John D. HAYES. "Major differences exist in the function and tissue-specific expression of human aflatoxin B1 aldehyde reductase and the principal human aldo-keto reductase AKR1 family members." Biochemical Journal 343, no. 2 (1999): 487–504. http://dx.doi.org/10.1042/bj3430487.

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Complementary DNA clones encoding human aflatoxin B1 aldehyde reductase (AKR7A2), aldehyde reductase (AKR1A1), aldose reductase (AKR1B1), dihydrodiol dehydrogenase 1 (AKR1C1) and chlordecone reductase (AKR1C4) have been expressed in Escherichia coli. These members of the aldo-keto reductase (AKR) superfamily have been purified from E. coli as recombinant proteins. The recently identified AKR7A2 was shown to differ from the AKR1 isoenzymes in being able to catalyse the reduction of 2-carboxybenzaldehyde. Also, AKR7A2 was found to exhibit a narrow substrate specificity, with activity being restr

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Prasad, Raghu, and Mala Mathur. "Synthesis characterization of Cr(III), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) complexes of 2,12-dimethyl-3-13-di-n-propyl-l,4,ll,14-tetraazacycloeicosa-1,13,l1,13-tetraene." Journal of the Serbian Chemical Society 67, no. 12 (2002): 825–32. http://dx.doi.org/10.2298/jsc0212825p.

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Metal complexes of a 20-membered tetraazamacrocycle 2,12-dimethyl-3,13-di-n-propyl 1,4,11,14-tetraazacycloeicosa-1,3,11,13-tetraene(L) of the type [MLX2]X(M=Cr(III), Fe(III); X=NO3)[CoLNO3]NO3, [NiL(NO3)2], [CuL]Cl2 and [ZnLCl2]have been prepared by 2+2 cyclocondensation of 2,3-hexanedione with 1,6-diaminohexane in the presence of metal ions as templates. These complexes were characterized by elemental analyses, conductances, IR and electronic spectra and magnetic measurements.

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