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Page 1
β-Pyrazino-fused tetrarylporphyrins.
Mandoj F, Nardis S, Pudi R, Lvova L, Fronczek FR, Smith KM, Prodi L, Genovese D, Paolesse R. Mandoj F, et al. Dyes Pigm. 2013 Oct 1;99(1):10.1016/j.dyepig.2013.04.024. doi: 10.1016/j.dyepig.2013.04.024. Dyes Pigm. 2013. PMID: 24347747 Free PMC article.
A novel method for the preparation of beta-fused porphyrin dyads was developed that exploits a one-pot reaction of 2,3-diaminoporphyrins with diethyl oxalate. This approach provides good yields of the zinc beta-fused dyad and the corresponding free-base, opening the …
A novel method for the preparation of beta-fused porphyrin dyads was developed that exploits a one-pot reaction of 2,3-diaminoporphyrins wit …
[Determination of dimethyl oxalate and diethyl oxalate in workplace air by high performance liquid chromatography].
Chen ZL, Wang M, Jiang JF, Song WL. Chen ZL, et al. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2024 Mar 20;42(3):199-202. doi: 10.3760/cma.j.cn121094-20230209-00039. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2024. PMID: 38538241 Chinese.
Objective: To establish a high performance liquid chromatography method for the simultaneous determination of dimethyl oxalate (DMO) and diethyl oxalate (DEO) in workplace air. Methods: From January 2022 to January 2023, air samples were collected by silica gel tube …
Objective: To establish a high performance liquid chromatography method for the simultaneous determination of dimethyl oxalate (DMO) and …
(Z)-Ethyl 2-oxo-3-(1,2-dihydroquinolin-2-yl-idene)propano-ate.
Valkonen A, Kolehmainen E, Ośmiałowski B, Gawinecki R. Valkonen A, et al. Acta Crystallogr Sect E Struct Rep Online. 2010 Jun 23;66(Pt 7):o1746-7. doi: 10.1107/S160053681002324X. Acta Crystallogr Sect E Struct Rep Online. 2010. PMID: 21587963 Free PMC article.
Both independent mol-ecules in the asymmetric unit of the tautomeric title compound, C(14)H(13)NO(3), a synthetic product obtained from 2-lithio-methyl-quinoline and diethyl oxalate, crystallize in the enaminone form with a Z configuration around the double bond. .. …
Both independent mol-ecules in the asymmetric unit of the tautomeric title compound, C(14)H(13)NO(3), a synthetic product obtained from 2-li …
Iron-Catalyzed C-H Activation for Heterocoupling and Copolymerization of Thiophenes with Enamines.
Doba T, Shang R, Nakamura E. Doba T, et al. J Am Chem Soc. 2022 Nov 30;144(47):21692-21701. doi: 10.1021/jacs.2c09470. Epub 2022 Nov 16. J Am Chem Soc. 2022. PMID: 36383691
We report herein iron-catalyzed C-H/C-H heterocoupling between enamines and thiophenes and its application to copolymerization of bisenamine and bisthiophene using diethyl oxalate as an oxidant and AlMe(3) as a base, as a result of our realization that synthetic lim …
We report herein iron-catalyzed C-H/C-H heterocoupling between enamines and thiophenes and its application to copolymerization of bisenamine …
Economic, ecological, and health aspects of β-diketonate application in the process of water purification.
Branković S, Bugarčić M, Bugarčić FŽ, Ostojić A, Petronijević J, Rosić G, Radojević I, Selaković D, Simić Z, Joksimović N. Branković S, et al. Environ Sci Pollut Res Int. 2022 Aug;29(39):58703-58715. doi: 10.1007/s11356-022-19986-2. Epub 2022 Apr 2. Environ Sci Pollut Res Int. 2022. PMID: 35366727
Considering new chemical use in water treatment, we tested two beta-diketonates that we previously synthesized in the reaction between methyl ketone and diethyl oxalate under basic conditions. For water treatment, we used the appropriate salts of the mentioned compo …
Considering new chemical use in water treatment, we tested two beta-diketonates that we previously synthesized in the reaction between methy …
Transesterification of diethyl oxalate with phenol over sol-gel MoO(3)/TiO(2) catalysts.
Kotbagi T, Nguyen DL, Lancelot C, Lamonier C, Thavornprasert KA, Wenli Z, Capron M, Jalowiecki-Duhamel L, Umbarkar S, Dongare M, Dumeignil F. Kotbagi T, et al. ChemSusChem. 2012 Aug;5(8):1467-73. doi: 10.1002/cssc.201100802. Epub 2012 Jul 23. ChemSusChem. 2012. PMID: 22821928
The transesterification of diethyl oxalate (DEO) with phenol to form diphenyl oxalate (DPO) has been carried out in the liquid phase over very efficient MoO(3)/TiO(2) solid-acid sol-gel catalysts. ...
The transesterification of diethyl oxalate (DEO) with phenol to form diphenyl oxalate (DPO) has been carried out in the liquid …
Synthesis of Ethylene Glycol from Syngas via Oxidative Double Carbonylation of Ethanol to Diethyl Oxalate and Its Subsequent Hydrogenation.
Satapathy A, Gadge ST, Bhanage BM. Satapathy A, et al. ACS Omega. 2018 Sep 13;3(9):11097-11103. doi: 10.1021/acsomega.8b01307. eCollection 2018 Sep 30. ACS Omega. 2018. PMID: 31459218 Free PMC article.
This work reports a novel sustainable two-step method for the synthesis of ethylene glycol (EG) using syngas. In the first step, diethyl oxalate was selectively synthesized via oxidative double carbonylation of ethanol and carbon monoxide (CO) using a ligand-free, r …
This work reports a novel sustainable two-step method for the synthesis of ethylene glycol (EG) using syngas. In the first step, diethyl
Synthesis, Characterization of Ethyl 5-(substituted)-1H-pyrazole- 3-carboxylate Derivative as Potent Anti-inflammatory Agents.
Pratik K, Arun K, Neha S, Bhumika Y, Anshuman S, Kumar GS. Pratik K, et al. Antiinflamm Antiallergy Agents Med Chem. 2018;17(1):32-38. doi: 10.2174/1871523017666180411155240. Antiinflamm Antiallergy Agents Med Chem. 2018. PMID: 29651969
METHODS: A series of novel ethyl 5-(substituted)-1H-pyrazole-3-carboxylate (2a-j) were synthesized and evaluated for anti-inflammatory activity using carrageenan-induced inflammation in rat paw edema model. In the first step, diethyl oxalate react with acetophenone …
METHODS: A series of novel ethyl 5-(substituted)-1H-pyrazole-3-carboxylate (2a-j) were synthesized and evaluated for anti-inflammatory activ …
Synthesis and evaluation of the antioxidant activity of new spiro-1,2,4-triazine derivatives applying Ag/Fe3O4/CdO@MWCNT MNCs as efficient organometallic nanocatalysts.
Ezzatzadeh E, Soleimani-Amiri S, Hossaini Z, Khandan Barani K. Ezzatzadeh E, et al. Front Chem. 2022 Sep 29;10:1001707. doi: 10.3389/fchem.2022.1001707. eCollection 2022. Front Chem. 2022. PMID: 36262344 Free PMC article.
We also evaluated its activity by using in the one-pot multicomponent reaction of acetophenones, diethyl oxalate, ammonium acetate, and activated carbonyl compounds such as ninhydrin, isatin and acenaphthylene-1,2-dione, and malononitrile and hydrazoyl chlorides in …
We also evaluated its activity by using in the one-pot multicomponent reaction of acetophenones, diethyl oxalate, ammonium ace …
48 results