CAS: 2403-89-6; 1,2,2,6,6-Pentamethylpiperidin-4-Ol

相似化合物

5554-54-1 2403-88-5 1023514-10-4

上下游产品

CAS号2403-88-5 2,2,6,6-四甲基-4-哌啶醇 | CAS号50-00-0 甲醛 | CAS号74-88-4 碘甲烷 | CAS号2403-88-5 2,2,6,6-四甲基-4-哌啶醇 | CAS号464-72-2 苯频哪醇 | CAS号80784-66-3 4,4'-Dihydroxy-... | CAS号80784-67-4 1-(2-Hydroxy-2,... | CAS号85111-08-6 1-(9-Hydroxy-9-... | CAS号85111-11-1 1-(2-Hydroxy-2-... | CAS号85111-09-7 1-(2-Hydroxy-2,... | CAS号85111-10-0 1-(2-Hydroxy-2,... | CAS号1636-34-6 2,3-二苯基-2,3-丁二醇

1-(Hydroxymethyl)-2,2,6,6-Tetramethylpiperidin-4-Ol置于氢气体系中,用 乙醇 用作溶剂,100.0 °C,4.0 Mpa 条件下,以98.34%的收率获得五甲基哌啶醇
参考文献:光稳定剂中间体1,2,2,6,6-五甲基-4-哌啶醇 的合成方法
标题:光稳定剂中间体1,2,2,6,6-五甲基-4-哌啶醇 的合成方法
摘要:本发明提供一种光稳定剂中间体1,2,2,6,6‑五甲基‑4‑哌啶醇的合成方法,具体涉及光稳定剂制备技术领域,包括两步反应,第一步,将2,2,6,6‑四甲基‑4‑哌啶醇与低聚甲醛按一定比例混合加入到溶剂中,常压下,在一定的反应温度下,搅拌一定时间,使2,2,6,6‑四甲基‑4‑哌啶醇反应完全,再冷却至室温,过滤除去过量的低聚甲醛,得到羟甲基化产物;第二步,将还原型固体催化剂装入固定床反应器中,将上述的反应液加入溶剂,以一定进料速度持续通入固定床反应器,并通入氢气,加热,反应液持续从固定床反应器下端流出,流出的反应液经冷却,气液分离,液体过滤,滤液蒸除溶剂和纯化后得到目标产物.本发明制备简便,经济环保,产品质量高,收率高,适合工业化生产.

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-6559311-B1
优先权日:2001-10-30
标题 :Process for the synthesis of a photo-stabilizer
发明人：DESAI SHROJ AL MOHITKUMAR; SINGH RAJ PAL
权利人:COUNCIL SCIENT IND RES
摘要:The present invention relates to a process for the preparation of a photo-stabilizer of the general formula (I): n wherein R 1 is hydrogen, halogen, C 1 to C 12 alkyl, alkoxy (linear and branched), R 2 is hydrogen, C 1 -C 8 alkyl, cyclopentyl, cyclohexyl or cumyl, R 3 is hydrogen, C 1 -C 4 alkyl, R 4 is methyl or ethyl, R 5 is C 1 -C 8 alkyl, alkyl phenyl, alkoxy, acyl, cycloalkyl and allyl, X is O, NH, C 1 -C 8 alkyloxy and alkylamino (linear or branched), and derivatives and intermediates thereof.

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.