CAS: 67845-93-6; Hexadecyl 3,5-Di-Tert-Butyl-4-Hydroxybenzoate

上下游产品

3,5-二叔丁基-4-羟基苯甲酸 3,5-Di-Tert-Butyl-4-Hydroxybenzoic Acid 1421-49-4

1-十六烷醇,3,5-二叔丁基-4-羟基苯甲酸 反应 5.0H,以92.5%的收率获得产物3,5-二叔丁基-4-羟基苯甲酸十六酯
参考文献:酸性离子液体催化合成3,5-二叔丁基-4-羟基 苯甲酸正十六酯的方法
标题:酸性离子液体催化合成3,5-二叔丁基-4-羟基 苯甲酸正十六酯的方法
摘要:本发明公开了一种酸性离子液体催化合成3,5‑二叔丁基‑4‑羟基苯甲酸正十六酯的方法,属于化工领域,以解决现有方法工艺流程复杂,且后处理麻烦,对环境造成污染的问题.本发明方法利用酸性双核功能化离子液体作为催化剂,以3,5‑二叔丁基‑4‑羟基苯甲酸和正十六醇作为原料,利用抽真空脱水,控制反应温度100~160°C,反应时间3~8小时,反应结束后,降温,静置分层,下层为离子液体,分离后重复使用;上层倒入甲醇溶液中,出现大量结晶,过滤得滤饼,即为目标产物.本发明以离子液体作为一种绿色催化剂,在很多酸催化反应中表现出高效,高选择性,反应条件温和,简单可控,环境友好,催化效率高,后处理简单等优点.

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: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.

专利号:US-2005043552-A1
优先权日:2000-05-26
标 题:Process for the synthesis of amine ethers from secondary amino oxides