CAS: 2444-28-2; 2,6-Di-Tert-Butylbenzene-1,4-Diol

上下游产品

2,6-Di-tert-butyl-1,4-benzoquinone tert-butyl-4,4'-peroxy-bis-cyclohexa-2,5-dienone2,4,6,2',4',6'-hexa-tert-butyl-4,4'-peroxy-bis-cyclohexa-2,5-dienone methanol 4-bromo-4-(1-hydroxypropyl)-2,6-di-t-butylcyclohexa-2,5-dienone para-methoxy-2,6-di-tert-butylphenol 2,6-Di-t-butyl-4-methoxyphenol 4-tert-Butoxy-2,6-di-tert-butylphenol 4-(Di-n-butylphosphinyloxy)-2,6-di-tert.-butyl-phenol

📜2,6-二叔丁基苯酚置于水,溴,Silver Perchlorate体系中,化学反应 0.05H,以68%的收率获得2,6-二叔丁基对苯二酚
参考文献:4-烷氧基-2,6-二叔丁基苯酚的二烯酮互变异构体.
标题:4-烷氧基-2,6-二叔丁基苯酚的二烯酮互变异构体.
摘要:描述了标题烷酚(10)的互变异构形式4-烷氧基环己-2,5-二烯酮9的生成和分离.尽管它们可以在反应条件下不可逆地异构化为10,但它们是通过ag离子介导的4-溴环己2,5-二烯酮3B与简单的醇高效生成的.可以通过在na(2)co(3)或agococf(3)存在下与agclo(4)反应并在9形成完成后不久中断反应来获得高含量9的粗制材料.Agococf(3)反应还产生不稳定的4-(三氟乙酰氧基)环己二,5-二烯酮11,随着醇的体积增大,其形成变得显着.通过使用碱,酸或sio(2)催化,所有9个分子都极易发生质子重排成10个.可以通过在含有agclo(4)和na(2)co(3)的醇中用br(2)在短时间内处理苯酚6来直接从苯酚6直接制备粗二烯酮9.还描述了由6种4-氧基官能化的2,6-二叔丁基苯酚(包括10种)的一锅合成.
Doi:10.1021/jo9609945

专利信息

专利号:US-2009318592-A1
优先权日:2005-10-11
标 题 :Process for the Synthesis of Amine Ethers
发明人：FREY MARKUS; BROENNIMANN VALERIE
权利人:CIBA GEIGY CORP
摘要:The present invention relates to novel processes for the preparation of a sterically hindered amine ether by reacting a corresponding sterically hindered amine oxide with a ketone or an aldehyde with at least one reactive H in the presence of a peroxydisulphate. Products obtained by this process may be hydrogenated. The compounds made by these processes are particularly effective in the stabilization of polymer compositions against harmful effects of light, oxygen and/or heat and as flame-retardants for polymers.

专利号:US-2007191516-A1
优先权日:2004-03-15
标题 :Process for the synthesis of amine ethers
发明人：FREY MARKUS; RAST VALERIE; BRAIG ADALBERT; KRAMER ANDREAS
权利人:FREY MARKUS; RAST VALERIE; BRAIG ADALBERT; KRAMER ANDREAS
摘要:A process for the preparation of a sterically hindered amine ether which comprises reacting a corresponding sterically hindered aminoxide with a C 5 -C 18 alk-1-ene in the presence of an organic hydroperoxide and optionally hydrogenating the resulting product as well as the product mixtures obtained therewith and their use as stabilizers and flame retardants.

专利号:US-7402675-B2
优先权日:2000-05-26
标题 :Process for the synthesis of amine ethers from secondary amino oxides
发明人：HAFNER ANDREAS; KIRNER HANS JUERG; SCHWARZENBACH FRANZ; VAN DER SCHAAF PAUL ADRIAAN; NESVADBA PETER
权利人:CIBA SC HOLDING AG
摘要:An amine ether of formula A n nwherein a is 1 or 2; and when a is 1, E is E′; when a is 2, E is L;n E′ is C 1 -C 36 alkyl; C 3 -C 18 alkenyl; C 2 -C 18 alkinyl; C 5 -C 18 cycloalkyl; C 5 -C 18 cycloalkenyl; a radical of a saturated or unsaturated aliphatic bicyclic or tricyclic hydrocarbon of 7 to 12 carbon atoms; C 2 -C 7 alkyl or C 3 -C 7 alkenyl substituted by halogen; C 7 -C 15 aralkyl or C 7 -C 15 aralkyl substituted by C 1 -C 4 alkyl or phenyl; or E′ is a radical of formula (VII) as explained in claim 1; T′ is tertiary C 4 -C 18 alkyl or phenyl, each of which are unsubstituted or substituted by halogen, OH, COOR 21 or C(O)—R 22 ; or T′ is C 5 -C 12 cycloalkyl; C 5 -C 12 cycloalkyl which is interrupted by at least one O or —NR 18 —; a polycyclic alkyl radical having 7-18 carbon atoms, or the same radical which is interrupted by at least one O or —NR 18 —; or T′ is —C(G 1 )(G 2 )-T″; or C 1 -C 18 alkyl or C 5 -C 12 cycloalkyl substituted by n n n n n n n n n n n n T″ is hydrogen, halogen, NO 2 , cyano, or is a monovalent organic radical comprising 1-50 carbon atoms; n or T″ and T′ together form a divalent organic linking group completing, together with the hindered amine nitrogen atom and the quaternary carbon atom substituted by G 1 and G 2 , an optionally substituted five- or six-membered ring structure; and all other residues are as defined in claim 1, n are obtained in good yield from the corresponding N-oxyl hindered amine precursor by reaction with a hydrocarbon E 1 -H or H-L-H in the presence of an organic hydroperoxide and a catalytic amount of copper or a copper compound. n n n n n The products of present process find utility as polymerization regulators and/or light stabilizers for organic material.

专利号:CN-106916043-A
优先权日:2016-12-07
标 题 :Solvent-free amide synthesis method and its application in the synthesis of polymer antioxidant stabilizers

专利号:US-6417363-B1
优先权日:1997-12-04
标题 :Heterocyclyl ligand containing ruthenium and osmium catalysts
发明人：VAN DER SCHAAF PAUL ADRIAAN; MUEHLEBACH ANDREAS; HAFNER ANDREAS; KOLLY ROMAN
权利人:CIBA SC HOLDING AG
摘要:Penta- and hexa-coordinated, bridged ruthenium and osmium catalysts of the formulawherein Me is ruthenium or osmium; L1 and L2 are neutral ligands having electron donor properties;X is an anionic ligand; Y is oxygen or sulphur; A is a direct bond, C1-C4alkylene or C2-C4alkylidene;Z is a direct bond, oxygen, sulphur or the groupswherein R1 and R2 are hydrogen or hydrocarbon radicals; their preparation and their us in the synthesis of polymers, in the ring-closure metathesis of diolefins, in the cross metathesis of olefins and in the isomerisation of olefins are disclosed.

专利号:US-6077805-A
优先权日:1997-03-06
标题:Hexacoordinated ruthenium or osmium carbene catalysts
发明人：VAN DER SCHAAF PAUL ADRIAAN; HAFNER ANDREAS; MUEHLEBACH ANDREAS
权利人:CIBA SC HOLDING AG
摘要:Hexacoordinated ruthenium and osmium catalysts of the formulae in which M and M' independently of one another are ruthenium or osmium; X, X', Y and Y' independently of one another are anionic ligands, or X and Y and X' and Y' in each case together are bis-anionic ligands L1 and L1' independently of one another are tertiary phosphine; L2 and L3 independently of one another are a monodentate ligand, or L2 and L3 together are bidentate, neutral electron donor ligands; L4 is tetradentate, neutral electron donor ligand; L5 is a bidentate, neutral electron donor ligand; and T and T' indepedently of one another are H or organic substituents, are useful for the synthesis of custom-tailored polymers and for the ring-closing metathesis of olefins.