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作者:Saied Saeed Hosseiny Davarani , Ali Reza Fakhari , Ahmad Shaabani ...
来源:[J].Tetrahedron Letters(IF 2.397), 2008, Vol.49 (39), pp.5622-5624Elsevier
摘要:Abstract(#br)Electrochemical oxidation of 2,3-dimethylhydroquinone 1 has been studied in the presence of o -phenylenediamines 3a – c as nucleophiles in aqueous solution, using cyclic voltammetry and controlled potential coulometry. The results indicate that the quinone 2 deri...
作者:Mohsen Ameri , Alireza Asghari , Ali Amoozadeh ...
来源:[J].Tetrahedron Letters(IF 2.397), 2015, Vol.56 (17), pp.2141-2144Elsevier
摘要:Abstract(#br)Electro-oxidation of hydroquinone and 2,3-dimethylhydroquinone in the presence of 1,3-indanedione, as a nucleophile, is studied in phosphate-ethanol buffer using voltammetric methods. The results obtained indicate that the oxidized form of p -benzoquinones participat...
作者:Burner U , Krapfenbauer G , Furtmüller P G ...
来源:[J].Redox report : communications in free radical research(IF 1.662), 2000, Vol.5 (4), pp.185-90PubMed
摘要:... Therefore, the kinetics and spectra of the reactions of p-hydroquinone, 2,3-dimethylhydroquinone and 2,3,5-trimethylhydroquinone with compounds I and II were investigated using both sequential-mixing stopped-flow techniques and conventional spectrophotometric measurements. At...
作者:Hosseiny Davarani Saied Saeed , Nematollahi Davood , Shamsipur Mojtaba ...
来源:[J].The Journal of organic chemistry(IF 4.564), 2006, Vol.71 (5), pp.2139-42PubMed
摘要:The electrooxidation of 2,3-dimethylhydroquinone (1) has been studied in the presence of 2-phenyl-1,3-indandione (3a), 3-hydroxy-1H-phenalen-1-one (3b), and 2-chloro-5,5-dimethyl-1,3-cyclohexanedione (3c) as CH acid nucleophiles in water/acetonitrile (85/15) solution, using cycli...
作者:Moonhyun Oh , Jeffrey A Reingold , Gene B Carpenter ...
来源:[J].Journal of Organometallic Chemistry(IF 2), 2003, Vol.687 (1), pp.78-84Elsevier
摘要:Abstract(#br)The cationic manganese tricarbonyl complexes containing η 6 -2-methylhydroquinone ( 2a ), η 6 -2,3-dimethylhydroquinone ( 3a ), η 6 -2- t -butylhydroquinone ( 4a ), η 6 -tetramethylhydroquinone ( 5a ) and η 6 -4,4′-biphenol ( 6a ) are readily deprotonated to ...
作者:Awni Al-Omran , John B. Rose
来源:[J].Polymer(IF 3.379), 1996, Vol.37 (9), pp.1735-1743Elsevier
摘要:Abstract(#br)Methylated polyarylethersulfones have been prepared by conventional reactions of 4-chlorophenyl sulfone with methylhydroquinone, 2,3-dimethylhydroquinone, trimethylhydroquinone, durohydroquinone and mixtures of hydroquinone with durohydroquinone, in the presence of p...
作者:Harper W S , Gaillard E R
来源:[J].Photochemistry and photobiology(IF 2.287), 2001, Vol.73 (1), pp.71-6PubMed
摘要:... The lifetime of the RAL triplet excited state is observed to decrease with increasing concentration of the well-known electron and hydrogen atom donors, 2,3,5,6-tetramethyl-1,4-phenylenediamine (DAD), hydroquinone (HQ), methylhydroquinone (MHQ), 2,3-dimethylhydroquinone (DMHQ...
作者:Hosseiny Davarani Saied Saeed , Kalate Bojdi Majid , Mehdinia Ali
来源:[J].Chemical & pharmaceutical bulletin, 2011, Vol.59 (10), pp.1209-13PubMed
摘要:Electrochemical oxidation of hydroquinone (1a) and 2,3-dimethylhydroquinone (1b) have been studied in the presence of 2-aminophenol (3a) and 2-amino-4-chlorophenol (3b), as nucleophiles in phosphate buffer solution (pH 7.2) using cyclic voltammetry and controlled potential coulom...
作者:Lecea Mercedes , Hernández-Torres Gloria , Urbano Antonio ...
来源:[J].Organic letters, 2010, Vol.12 (3), pp.580-3PubMed
摘要:...4% overall yield starting from 2,3-dimethylhydroquinone. The key step is a stereoselective TiCl(4)-mediated homochiral sulfoxide-directed allylation of ketal (SS)-3 to efficiently generate the challenging C-2 stereogenic carbon of chroman (SS,S)-2 with the correct absolute con...

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