CAS: 105-08-8; 1,4-Cyclohexanedimethanol

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3236-48-4 3236-47-3 141836-50-2

上下游产品

CAS号120-61-6 对苯二甲酸二甲酯 | CAS号94-60-0 1,4-环己烷二羧酸二甲酯 | CAS号619-81-8 順式1,4-环己烷二甲酸 | CAS号100-21-0 对苯二甲酸(PTA) | CAS号34885-03-5 4-甲基-1-环己烷甲醇(顺反... | CAS号3236-48-4 反式-1,4-环己烷二甲醇 | CAS号88-12-0 N-乙烯基吡咯烷酮 | CAS号671816-04-9 (1R)-反式-4-[N-Bo... | CAS号35541-75-4 1,4-Bis(bromome... | CAS号35541-76-5 1,4-bis(iodomet... | CAS号33242-79-4 4-Methylcyclohe... | CAS号170811-08-2 [4-(hydroxymeth... | CAS号1074-62-0 4-(Aminomethyl)... | CAS号2549-93-1 1,4-双(氨甲基)环己烷

对苯二甲醇置于ru/al2O3,氢气体系中,用 甲醇 用作溶剂,150.0 °C,5.0 Mpa 条件下,反应生成1,4-环己烷二甲醇
参考文献:温和条件下通过酯交换/加氢中继实现废聚酯的高效解聚
标题:温和条件下通过酯交换/加氢中继实现废聚酯的高效解聚
摘要:通过新颖的酯交换/氢化中继策略和合理设计的催化剂,在温和的条件下开发了一种有效的氢化 Pet 降解方案.多种消费后 Pet 来源和其他类型的聚酯很容易以优异的收率降解.初步机理研究揭示了催化剂的演变以及甲醇对提高反应效率的重要作用.
Doi:10.1002/anie.202312564

专利信息

专利号:US-2024368099-A1
优先权日:2022-01-18
标 题:Methods for the synthesis of di(hydroxymethyl)tetrahydrofuran and its application in polyesters and polyurethanes
发明人：SPIEGELBERG BRIAN; BRANDT ADRIAN; BECK HORST; KUX ALEXANDER; TIN SERGEY; DE VRIES JOHANNES GERARDUS
权利人:HENKEL AG & CO KGAA
摘要:The present invention relates to the synthesis of di(hydroxymethyl)tetrahydrofuran (DHMTHF) and the preparation of trans-enriched mixtures of DHMTHF. The invention further refers to polyester polyols which are obtained by reaction of cis/trans DHMTHF mixtures with a dicarboxylic acid. The invention further relates to polyurethanes and compositions containing a polyester polyol comprising DHMTHF, in particular to such polyurethane-containing (adhesive) compositions.

专利号:US-5869543-A
优先权日:1996-10-22
标题:Process for the synthesis of polyethylene carboxylate from polyethylene carboxylate waste
发明人：BOOS FRANK; SCHNITTKER NORMAN; SEELIG JOACHIM
权利人:ZIMMER AG
摘要:The invention comprises a method for synthesizing polyethylene terephthalate from waste polyethylene terephthalate by cleavage with ethylene glycol and separation of bis(hydroxyethylene) terephthalate from the cleavage mixture with a specific temperature program, recrystallization from water, and esterification and polycondensation with the addition of terephthalic acid. n The invention further comprises a method for synthesis of polyethylene naphthalate from waste polyethylene naphthalate in a similar manner.

专利号:US-4472568-A
优先权日:1981-11-12
标 题:Process for the preparation of polyamines from N-monoaryl-N',N'-dialkyl urea compounds and their use for the synthesis of polyurethanes
发明人：RASSHOFER WERNER; GROEGLER GERHARD
权利人:BAYER AG
摘要:This invention relates to an improved process for the preparation of aromatic polyamines containing urethane and/or biuret and/or urea and/or isocyanurate groups and preferably also ether groups by the hydrolysis of poly-N-monoaryl-N',N'-dialkyl urea compounds (1-aryl-3,3-dialkyl ureas). The ureas are obtained by the reaction of secondary aliphatic, cycloaliphatic or saturated heterocyclic amines with divalent to tetravalent isocyanate compounds containing isocyanate end groups attached to aromatic residues. The ureas correspond to the general formula: wherein R1, R2 denote alkyl or cycloalkyl groups, or together form a ring and A denotes a divalent to tetravalent residue attached to the ureas by aromatic groups. Hydrolysis is carried out in the presence of water and up to two equivalents of a base containing hydroxide ions and/or up to two equivalents of a compound containing tertiary amino groups, optionally in the presence of solvents. The use of the polyamines obtained by this process for the synthesis of polyurethanes is also described.

专利号:US-12365760-B2
优先权日:2019-05-13
标题 :Process for the synthesis of polycarbonates from cyclic monothiocarbonates
发明人：RUDOLF PETER; THIEL INDRE; WURM THOMAS MAXIMILIAN
权利人:BASF SE
摘要:A process can be used for the synthesis of compounds containing at least one non-cyclic carbonate group, wherein a compound A) containing at least one five-membered cyclic monothiocarbonate group is reacted with at least one hydroxy group of a compound B) or of compound A) itself.

专利号:US-8183355-B2
优先权日:2006-04-28
标题 :Method for the synthesis of oligonucleotide derivatives
发明人：MORVAN FRANCOIS; MEYER ALBERT; VASSEUR JEAN-JACQUES; VIDAL SEBASTIEN; CLOAREC JEAN-PIERRE; CHEVOLOT YANN; SOUTEYRAND ELIANE
权利人:MORVAN FRANCOIS; MEYER ALBERT; VASSEUR JEAN-JACQUES; VIDAL SEBASTIEN; CLOAREC JEAN-PIERRE; CHEVOLOT YANN; SOUTEYRAND ELIANE; CENTRE NAT RECH SCIENT
摘要:Method for the synthesis of nucleotide derivatives wherein molecules of interest are grafted on the oligonucleotide with the help of a “click chemistryâ€? reaction between an azide function on the molecule of interest and an alkyne function on the oligonucleotide, or between an alkyne function on the molecule of interest and an azide function on the oligonucleotide. n Intermediate molecules, notably alkyne functionalized oligonucleotides, grafted oligonucleotides, azide functionalized oligonucleotides, oligonucleotide micro arrays containing them and the use of those grafted oligonucleotides for biological investigation and for cell targeting.

专利号:US-10730994-B2
优先权日:2015-06-08
标 题:Synthesis of polycarbonate siloxane diols
发明人：MAGUIRE FRANCIS P; VENKATARAMANI SRIRAM
权利人:AORTECH INT PLC; MAGUIRE FRANCIS P; VENKATARAMANI SRIRAM
摘要:The present invention provides silicon-based polycarbonates, processes for their preparation and their use in the synthesis of copolymers, in particular segmented copolymers such as polyurethanes for biomedical applications.