翻訳と辞書 ・ 1,8-Cineole 2-endo-monooxygenase ・ 1,8-Cineole 2-exo-monooxygenase ・ 1,8-cineole synthase ・ 1,8-Diaminonaphthalene ・ 1,8-Diazabicycloundec-7-ene ・ 1,8-Diazafluoren-9-one ・ 1,8-Octanediol ・ 1,837 Seconds of Humor ・ 1,9-Pyrazoloanthrone ・ 1-(2-Dimethylaminoethyl)dihydropyrano(3,2-e)indole ・ 1-(2-Diphenyl)piperazine ・ 1-(2-Nitrophenoxy)octane ・ 1,2-Dibromo-3-chloropropane ・ 1,2-Dibromoethane ・ 1,2-Dibromopropane ・ 1,2-Dichloro-4-nitrobenzene ・ 1,2-Dichlorobenzene ・ 1,2-Dichloroethane ・ 1,2-Dichloroethane (data page) ・ 1,2-Dichloroethene ・ 1,2-Dichloroethyl acetate ・ 1,2-Dichloropropane ・ 1,2-Dichlorotetrafluoroethane ・ 1,2-Difluorobenzene ・ 1,2-Diformylhydrazine ・ 1,2-Dihydro-1,2-azaborine ・ 1,2-dihydrovomilenine reductase ・ 1,2-dihydroxy-6-methylcyclohexa-3,5-dienecarboxylate dehydrogenase ・ 1,2-dihydroxynaphthalene dioxygenase ・ 1,2-Diiodoethane
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1,2-Dichloro-4-nitrobenzene : ウィキペディア英語版 | 1,2-Dichloro-4-nitrobenzene
|Section2= |Section3= }} 1,2-Dichloro-4-nitrobenzene is an organic compound with the formula 1,2-Cl2C6H3-4-NO2. This pale yellow solid is related to 1,2-dichlorobenzene by the replacement of one H atom with a nitro functional group. This compound is an intermediate in the synthesis of agrochemicals. ==Production and uses== The nitration of 1,2-dichlorobenzene mainly produces 1,2-dichloro-4-nitrobenzene, together with smaller amounts of the 3-nitro isomer. It can also be prepared by chlorination of 4-chloronitrobenzene.〔Gerald Booth (2007). "Nitro Compounds, Aromatic" in ''Ullmann's Encyclopedia of Industrial Chemistry'' Wiley-VCH, Weinheim, 2005.〕 One of the chlorides is reactive toward nucleophiles. Potassium fluoride gives 1-chloro-2-fluoro-4-nitrobenzene, an intermediate in the production of herbicides. With ammonia, one obtains 2-chloro-4-nitroaniline, a precursor to diazo dyes. Reduction with iron powder gives 3,4-dichloroaniline (m.p. 72 °C, CAS# 95-76-1).〔
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