CAS: 634-90-2; 1,2,3,5-Tetrachlorobenzene

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邻二氯苯置于氢氧化钾,碘,氯体系中,化学反应生成 1,2,3,5-四氯苯
参考文献:The Partial Additive Chlorination Of The Benzene Ring. Iii. Pentachlorccyclohexene And Hexachlorocyclohexene
标题:The Partial Additive Chlorination Of The Benzene Ring. Iii. Pentachlorccyclohexene And Hexachlorocyclohexene
摘要:
DOI:10.1021/ja01634A012

专利信息

专利号:US-5030777-A
优先权日:1989-10-31
标 题 :Synthesis of 3,5-dichloroalkylbenzene and recovery of 1,3-dichlorobenzene
发明人：GEORGE JACOB; DESAI KANTI B; PERESS JIMMY
权利人:STANDARD CHLORINE OF DELAWARE
摘要:A process for synthesizing 3,5-dichloroalkylbenzene and recovering 1,3-dichlorobenzene from a starting mixture of 1,3- and 1,4-dichlorobenzenes. The process includes the sequential steps of selectively alkylating the 1,3-dichlorobenzene in the starting mixture; isomerizing a portion of the 2,4-dichloroalkylbenzene produced to 3,5-dichloroalkylbenzene; separating the 1,4-dichlorobenzene from the isomeric mixture of dichlorocumenes; and selectively transalkylating the dichlorocumenes to yield alkylbenzene, 3,5-dichloroalkylbenzene and 1,3-dichlorobenzene. By selectively alkylating only a portion of the 1,3-dichlorobenzene, the reaction products are obtained in good yield and substantially free of undesirable by-products.

专利号:US-4777305-A
优先权日:1987-10-22
标题:Synthesis of 1,4-dichlorobenzene
发明人：COBB RAYMOND L; MITCHELL MICHAEL D
权利人:PHILLIPS PETROLEUM CO
摘要:In a process for reacting an aromatic compound (preferably chlorobenzene) with free chlorine in the presence of a catalyst comprising a zeolite of the L family (zeolite L) under such reaction conditions as to obtain a product comprising 1,4-dichlorobenzene, the improvement comprises employing ammonium ion-exchanged zeolite of the L family.

专利号:US-6828466-B2
优先权日:2002-07-19
标题:Process for the synthesis of phenols from arenes
发明人：MALECZKA JR ROBERT E; SMITH III MILTON R; HOLMES DANIEL; SHI FENG
权利人:UNIV MICHIGAN STATE
摘要:A process to synthesize substituted phenols such as those of the general formula RR'R''Ar(OH) wherein R, R', and R'' are each independently hydrogen or any group which does not interfere in the process for synthesizing the substituted phenol including, but not limited to, halo, alkyl, alkoxy, carboxylic ester, amine, amide; and Ar is any variety of aryl or hetroaryl by means of oxidation of substituted arylboronic esters is described. In particular, a metal-catalyzed C-H activation/borylation reaction is described, which when followed by direct oxidation in a single or separate reaction vessel affords phenols without the need for any intermediate manipulations. More particularly, a process wherein Ir-catalyzed borylation of arenes using pinacolborane (HBPin) followed by oxidation of the intermediate arylboronic ester by OXONE is described.

专利号:EP-0313990-A2
优先权日:1987-10-22
标 题 :Synthesis of 1,4-dichlorobenzene

专利号:US-2004030197-A1
优先权日:2002-07-19
标 题 :Process for the synthesis of phenols from arenes

专利号:PT-2440543-E
优先权日:2009-06-03
标 题:IMPROVED METHOD FOR SYNTHESIS OF PYRPHENIDONE