CAS: 99-54-7; 1,2-Dichloro-4-Nitrobenzene

上下游产品

CAS号100-00-5 对硝基氯苯 | CAS号95-50-1 邻二氯苯 | CAS号87-61-6 1,2,3-三氯苯 | CAS号98-95-3 硝基苯 | CAS号619-18-1 2,5-dinitroaniline | CAS号75618-41-6 2,3-dichloro-6-... | CAS号6334-18-5 2,3-二氯苯甲醛 | CAS号89-69-0 2,4,5-三氯硝基苯 | CAS号17700-09-3 2,3,4-三氯硝基苯 | CAS号95-57-8 邻氯苯酚 | CAS号369-34-6 3,4-二氟硝基苯 | CAS号350-30-1 3-氯-4-氟硝基苯 | CAS号341001-38-5 [4-(2-氯-4-硝基苯基)... | CAS号39145-47-6 4’-氯-2-硝基二苯醚 | CAS号4920-79-0 2-氯-4-硝基苯甲醚 | CAS号443882-99-3 3-氯-4-(3-氟苄氧基)硝基苯 | CAS号41252-96-4 2-氯-1-碘-4-硝基苯 | CAS号619-08-9 2-氯-4-硝基酚 | CAS号39224-65-2 2-硝基-4,5二氯苯酚 | CAS号28165-60-8 2,3-二氯-6-硝基苯酚

邻二氯苯置于硫酸,硝酸,Sodium Dodecyl-Sulfate体系中,化学反应 4.5H,反应生成 3,4-二氯硝基苯
参考文献:相转移催化条件下芳烃的区域选择性硝化
标题:相转移催化条件下芳烃的区域选择性硝化
摘要:使用相转移催化剂在两相系统中进行芳族化合物的单硝化.确定硝化的最有利条件(温度,反应时间,相转移催化剂的类型和量,硝基硫酸的硝化强度).从结果可以看出,二甲苯的硝化反应的选择性和转化率有了显着提高:4-硝基间二甲苯与2-硝基间二甲苯的比例空前提高到91.3%:7.7%,4-硝基邻二甲苯与3-硝基邻二甲苯的比例也增加到71.1%∶27.2%.两次转化均超过96%.
DOI:10.1016/j.Catcom.2011.07.013

专利信息

专利号:US-4267070-A
优先权日:1979-10-30
标题:Catalyst for the synthesis of aromatic monoisocyanates
发明人：NEFEDOV BORIS K; MANOV-JUVENSKY VLADIMIR I; DERGUNOV JURY I; RYSIKHIN ANATOLY I; CHIMISHKIAN ALEXANDR L
权利人:NEFEDOV BORIS K; MANOV JUVENSKY VLADIMIR I; DERGUNOV JURY I; RYSIKHIN ANATOLY I; CHIMISHKIAN ALEXANDR L
摘要:A catalyst for the synthesis of aromatic monoisocyanates comprising 1.64 to 16.6% by weight of palladium chloride, 0.16 to 47.6% by weight of an oxide of a metal of Group VB of the periodic system, 1.5 to 81.8% by weight of an oxide of a metal of Group VI B of the periodic system, 1.64 to 89.8% by weight of pyridine or an alkylsubstituted pyridine. n The use of the catalyst according to the invention in the synthesis of aromatic monoisocyanates makes it possible to obtain a high degree of conversion of the starting compound of up to 100%, a high yield of the desired product of up to 97%, and increased productivity of the catalyst of up to 40 g of the desired product per g of PdCl 2 per hour.

专利号:WO-2010058421-A3
优先权日:2008-11-18
标题 :A process for synthesis of 2, 4-dichloro-5- fluoroacetophenone (dcfa)
发明人：MANDAL SISIR; PATIL NARENDRA; SULEMAN INAMDUR; MORE VINOD; PURI PRASHANT
权利人:ADITYA BIRLA SCI & TECH CO LTD; MANDAL SISIR; PATIL NARENDRA; SULEMAN INAMDUR; MORE VINOD; PURI PRASHANT
摘要:A process for synthesis of 2,4-dichloro-5-fluoro acetophenone (DCFA) is disclosed. The process comprises first reacting 3,4-dichloronitrobenzene with potassium fluoride having bulk density in the range of 0.2 to 1.3, to form a fluorinated intermediate product, then reacting the intermediate product with chlorine to form dichlorofluorobenzene and finally acylating dichlorofluorobenzene using an acylating agent to form a mixture containing DCFA along with impurities, followed by purification and enrichment of DCFA in the mixture by melt crystallization.

专利号:US-5354439-A
优先权日:1990-07-16
标 题 :Process for the synthesis of fluorinated derivatives
发明人：FORAT GERARD; GILBERT LAURENT; LANGLOIS BERNARD
权利人:RHONE POULENC CHIMIE
摘要:A process for the synthesis of fluorinated organic compounds and a reagent suitable for use in the process. The process is carried out by exchange with fluorides, while preferably agitating the reaction medium with ultrasonic sound.

专利号:EP-1189855-B1
优先权日:1999-07-02
标 题:Use of nitriles as polar aprotic solvents
发明人：LAURAIN NATHALIE; ZARD SAMIR
权利人:RHODIA CHIMIE SA
摘要:The invention concerns the use of aliphatic nitriles with relatively high molecular weight, as polar aprotic solvents, in particular in nucleophilic substitution reactions of the aromatic type. Said nitriles have a molecular mass more 79, preferably more than 90. The invention is useful for synthesis of fluorinated aromatic compounds.

专利号:US-7217842-B2
优先权日:2001-04-12
标题:Catalysts for nucleophilic substitution, synthesis thereof, composition containing them and use thereof
发明人：SCHANEN VINCENT; CRISTAU HENRI-JEAN; TAILLEFER MARC
权利人:RHONE POULENC CHIMIE
摘要:The invention concerns novel catalysts for aromatic nucleophilic substitution. Said catalysts are compounds of the general formula (I), wherein: R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 , identical or different, are selected among hydrocarbon radicals; the Pn's, advantageously the same, are selected among metalloid elements of column V of a period higher than nitrogen; Z is a metalloid element of column V, advantageously distinct from Pn; preferably a nitrogen (N, P, As, Sb). The invention is applicable to organic synthesis

专利号:US-5646085-A
优先权日:1991-10-04
标题:Material based on tungsten carbide(s), catalyst and process useful for the hydrogenation of an aromatic nitro or nitroso derivative employing this catalyst
发明人：JACQUOT ROLAND; MERCIER CLAUDE
权利人:RHONE POULENC CHIMIE
摘要:The present invention relates to a process and a catalyst for hydrogenation of aromatic nitro or nitroso (nitrosated) compounds. The process, useful in hydrogenation, especially in the liquid phase, of compounds, nitroaromatic ones in particular, is defined in that the said compound is hydrogenated in the presence of tungsten carbide, the partial pressure of hydrogen being at least equal to two atmospheres (2x105 pascals). The process also has application to organic synthesis.