CAS: 576-22-7; 2,6-Dimethylbromobenzene

上下游产品

CAS号87-62-7 2,6-二甲基苯胺 | CAS号75-25-2 三溴甲烷 | CAS号103724-97-6 4-Chloro-1,2-di... | CAS号5345-05-1 2-溴-5-叔丁基-1,3-二甲苯 | CAS号108-38-3 间二甲苯 | CAS号17961-82-9 (2,6-dimethylph... | CAS号98-19-1 5-叔丁基间二甲苯 | CAS号92-52-4 联苯 | CAS号593-53-3 氟甲烷 | CAS号109179-31-9 2-溴-3-甲基苯甲醛 | CAS号608-28-6 1,3-二甲基-2-碘苯 | CAS号556-96-7 5-溴间二甲苯 | CAS号583-70-0 2,4-二甲基溴苯 | CAS号108-38-3 间二甲苯 | CAS号54708-14-4 2,6-二甲基苯乙腈 | CAS号526-73-8 1,2,3-三甲苯 | CAS号1239384-07-6 1,1,3,3-tetrame... | CAS号14411-75-7 1,3-dimethyl-2-... | CAS号443-88-9 2-氟-1,3-二甲苯

2,6-二甲基苯胺置于氢溴酸,Ferrous(II) Sulfate Heptahydrate,氨基磺酸,Sodium Nitrite体系中,用 水 作为反应溶剂,化学反应 1.75H,以62%的收率获得产物2,6-二甲基溴苯
参考文献:束缚的托兰:扭转兴奋的状态
标题:束缚的托兰:扭转兴奋的状态
摘要:报道了双桥链的合成.该目标物是通过五步合成法获得的,从市售的2-氨基间二甲苯开始,通过sandmeyer反应,自由基溴化和stille型偶联以及随后的双环闭合相结合.双重束缚的tolane是结晶的.两个苯环在溶液和固态时都相对于彼此高度扭曲.光谱学和量子化学计算表明,双桥链环不仅在基态下扭曲,而且在激发态下扭曲,导致溶液和固态下的扭曲态发射.在低温下观测到强烈的磷光.
DOI:10.1002/chem.201804095

专利信息

专利号:US-4565896-A
优先权日:1984-10-22
标 题 :Process for low pressure synthesis of ethylene glycol from synthesis gas
发明人：KNIFTON JOHN F; DURANLEAU ROGER G
权利人:TEXACO INC
摘要:This invention relates to the manufacture of ethylene glcyol and more particularly to a low pressure process for making ethylene glycol comprising reacting synthesis gas, i.e. a mixture of carbon monoxide and hydrogen, plus formaldehyde in the presence of a homogeneous liquid catalyst containing an effective amount of cobalt-containing compound and a silicon or germanium-containing promoter and a solvent at a temperature of at least 50 DEG C. and a pressure of at least 500 psi wherein said ethylene glycol product separates as a separate liquid phase from the solvent.

专利号:US-4568780-A
优先权日:1984-10-22
标 题 :Process for low pressure synthesis of ethylene glycol from synthesis gas plus 1,3-dioxolane
发明人：KNIFTON JOHN F
权利人:TEXACO INC
摘要:This invention relates to the manufacture of ethylene glycol and more particularly to a low pressure process for making ethylene glycol comprising reacting synthesis gas, i.e. a mixture of carbon monoxide and hydrogen, plus 1,3-dioxolane in the presence of a homogenous liquid catalyst containing an effective amount of cobalt-containing compound and a silane or germane-containing promoter dispersed in a hydrocarbon solvent at a temperature of at least 50 DEG C. and a pressure of at least 500 psi, where the particular solvents used allow the desired product to be separated from the reaction mixture by phase separation.

专利号:US-5654441-A
优先权日:1995-09-14
标 题 :Synthesis of 1,3-oxathiolane sulfoxide compounds
发明人：MCPHEE DEREK JAMES
权利人:UNIROYAL CHEMICAL LTD
摘要:A process for the production of a 1,3-oxathiolane sulfoxide of the formula ##STR1## wherein X is an amino group of the formula --NHR, wherein R is hydrogen, phenyl, C 1 -C 8 alkyl, C 3 -C 6 cycloalkyl, nitrophenyl, (C 1 -C 4 alkoxy)phenyl, furfuryl, halophenyl, tolyl, napthyl, biphenyl or hydroxyphenyl; or X is an alkoxy group of the formula --OR 1 wherein R is C 1 -C 6 alkyl, n which process comprises oxidizing a 1,3-oxathiolane of the formula ##STR2## wherein X is as defined above, in the presence of an effective amount of aqueous hydrogen peroxide and a sterically-hindered organoselenium compound of the formula ##STR3## wherein R 2 is aryl, mono-, di- or tri-substituted with C 1 -C 3 alkyl, n to the produce the 1,3-oxathiolane sulfoxide. This process stereoselectively produces the cis stereoisomer of the 1,3-oxathiolane sulfoxide. Additionally, there is disclosed a novel method for the preparation of 5,6-dihydro-2-methyl-1,4-oxathiin compounds using this process.

专利号:US-8304550-B2
优先权日:2007-11-30
标题 :Process for the catalytic synthesis of diaryl ethers
发明人：COTTE ALAIN; MULLER NIKOLAUS; GOTTA MATTHIAS; BELLER MATTHIAS; SCHAREINA THOMAS; ZAPF ALEXANDER
权利人:COTTE ALAIN; MULLER NIKOLAUS; GOTTA MATTHIAS; BELLER MATTHIAS; SCHAREINA THOMAS; ZAPF ALEXANDER; SALTIGO GMBH
摘要:Described is a process for preparing diaryl ethers of the formula (I)n nAr—O—Ar′  (I)n n In which Ar is an aryl or substituted aryl group and Ar′ is an aryl, substituted aryl, heteroaryl or substituted heteroaryl group, n by reacting an aryl of formula (II) or a aryloxy salt of formula (III)n nAr—OH  (II)n nAr—OR  (III)n n In which Ar has the same meaning as in formula (I) and R is an alkali metal, n with an aryl or heteroaryl bromide of formula (IV)n nAr′—Br  (IV)n n In which Ar′ has the same meaning as in formula (I), n characterized in that the reaction is carried out in the presence of a copper(I)salt and a 1-substituted imidazole as catalyst system.

专利号:US-6458967-B1
优先权日:2000-06-26
标 题:Method for preparation of an intermediate dye product
发明人：DETTY MICHAEL RAY; VIRKLER PETER ROBERT
权利人:UNIV NEW YORK STATE RES FOUND
摘要:The present invention provides a novel method for the synthesis of an intermediate dye product having the following formula: n wherein n L is S, Te, or Se; n R 1 and R 2 are either the same or different aryl or alkyl compounds; n R 3 is hydrogen or a short chain alkyl group; and n Z is an anion. n The process to formulate this intermediate compound entails reacting an R 1 -acetylene compound with an R 2 -acetylene compound (compounds A) into an enol ether compound with the R 1 and/or R 2 constituents (compound D). And from compound D, it forms into an intermediate dye compound having an L-based cyclic ring with the R 1 and/or R 2 constituents (compound F). With compound F the desired dye can be made with a greater overall yield for mass production.

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.