欧盟法规
C&L通报上下游产品
dimethyl 5-methoxyisophthalate 5-Hydroxyisophthalic acid tert-butyldimethylsilyl chloride 3-hydroxymethyl-5-methoxy-benzoic acid methyl ester 3,5-bis(bromomethyl)anisole 5-methoxy-benzene-1,3-dicarbaldehyde 1,3-di(5-methanoyloxypent-1-yl)-5-methoxybenzene 6-[3-(5-Carboxy-pentyl)-5-methoxymethoxy-phenyl]-hexanoic acid 合成工艺路线路线简述
- 合成目标产物 5-Methoxy-1 3-Benzenedimethanol 97 主要起始原料 Dimethyl 5-Methoxyisophthalate
- (文献来源)合成步骤主要原料 Dimethyl 5-Methoxyisophthalate
📜5-羟基间苯二甲酸置于lithium Aluminium Tetrahydride,Potassium Carbonate体系中,用 乙醚,丙酮 用作溶剂,化学反应 3.0H,反应生成5-甲氧基-1,3-苯二甲醇
参考文献:Chinone. Xiii. Synthese Von 4,5,9,10-Tetrahydropyren-2,7-Dion Und Versuch Zur Darstellung Von Pyren-2,7-Dion
标题:Chinone. Xiii. Synthese Von 4,5,9,10-Tetrahydropyren-2,7-Dion Und Versuch Zur Darstellung Von Pyren-2,7-Dion
摘要:The Titel Quinones 7 And 9 Are Of Interest As Electron Acceptors For Organic Conductors. The Synthesis Of Their Conjugate Hydroquinones 6 And 8 Via The Metacyclophane Derivative 3 Is Described. The Tetrahydropyrene-2,7-Dione 7-Obtained By Oxidation Of 6-Possesses Only A Limited Stability,Whereas Pyrene-2,7-Dion (9) Proved To Unstable To Be Isolated.
Doi:10.1002/prac.19943360203
海关参考信息
- 2902300000-甲苯
2905110000-甲醇
2906210000-苄醇
2908199090-其他酚的卤化衍生物 - 💡 提示:海关信息按照顺序优先匹配,如需确认的海关信息,请参考相关资料。
- 详情请参考:📖 海关编码查询和海关进出口税则
专利信息
专利号:US-5763681-A
优先权日:1989-09-06
标 题 :Synthesis of stable, water-soluble chemiluminescent 1,2-dioxetanes and intermediates therefor
发明人:EDWARDS BROOKS; JUO RHOU-RONG
权利人:TROPIX INC
摘要:A novel synthesis of compound having the formula: ##STR1## wherein T is a stabilizing spiro-linked polycycloalkylidene group, R 3 is a C 1 -C 20 alkyl, aralkyl or heteroatom containing group, Y is an aromatic fluorescent chromophore, and Z is a cleavable group which, when cleaved, induces decomposition of the dioxetane ring and emission of optically detectable light, is disclosed. A tertiary phosphorous acid alkyl ester of the formula: n n (R.sup.1 O).sub.3 P n n wherein R 1 is a lower alkyl group, is reacted with an aryl dialkyl acetal produced by reacting a corresponding aryl aldehyde with an alcohol of the formula: n n R.sup.3 OH n n wherein R 3 is as defined above, to produce a 1-alkoxy-1-aryl-methane phosphonate ester of the formula: ##STR2## reacting the phosphonate with base to produce a phosphonate-stabilized carbanion, reacting the carbanion with a ketone of the formula: ##STR3## wherein T is as defined above, to produce an enol ether of the formula: ##STR4## then oxygenating the double bond in the enol ether to give the corresponding 1,2-dioxetane compound.
专利号:US-9045381-B2
优先权日:2010-10-19
标 题:Ruthenium complexes and their uses in processes for formation and/or hydrogenation of esters, amides and derivatives thereof
发明人:MILSTEIN DAVID; BALARAMAN EKAMBARAM; GUNANATHAN CHIDAMBARAM; GNANAPRAKASAM BOOPATHY; ZHANG JING
权利人:MILSTEIN DAVID; BALARAMAN EKAMBARAM; GUNANATHAN CHIDAMBARAM; GNANAPRAKASAM BOOPATHY; ZHANG JING; YEDA RES & DEV
摘要:The present invention relates to novel Ruthenium catalysts and related borohydride complexes, and the use of such catalysts, inter alia, for (1) hydrogenation of amides (including polyamides) to alcohols and amines; (2) preparing amides from alcohols with amines (including the preparation of polyamides (e.g., polypeptides) by reacting dialcohols and diamines and/or by polymerization of amino alcohols); (3) hydrogenation of esters to alcohols (including hydrogenation of cyclic esters (lactones) or cyclic di-esters (di-lactones) or polyesters); (4) hydrogenation of organic carbonates (including polycarbonates) to alcohols and hydrogenation of carbamates (including polycarbamates) or urea derivatives to alcohols and amines; (5) dehydrogenative coupling of alcohols to esters; (6) hydrogenation of secondary alcohols to ketones; (7) amidation of esters (i.e., synthesis of amides from esters and amines); (8) acylation of alcohols using esters; (9) coupling of alcohols with water to form carboxylic acids; and (10) dehydrogenation of beta-amino alcohols to form pyrazines. The present invention further relates to the novel uses of certain pyridine Ruthenium catalysts.
专利号:WO-9103479-A1
优先权日:1989-09-06
标题:Synthesis of stable, water-soluble chemiluminescent 1,2-dioxetanes and intermediates therefor
专利号:US-5225584-A
优先权日:1989-09-06
标 题 :Synthesis of stable water-soluble chemiluminescent 1,2-dioxetanes and intermediates therefor
专利号:EP-0441948-A4
优先权日:1989-09-06
标 题:Synthesis of stable, water-soluble chemiluminescent 1,2-dioxetanes and intermediates therefor
专利号:EP-0441948-A1
优先权日:1989-09-06
标题:Synthesis of stable, water-soluble chemiluminescent 1,2-dioxetanes and intermediates therefor