CAS: 5617-32-3; 3,6,9,12,15,18-Hexaoxaicosane-1,20-Diol

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三乙二醇置于4-二甲氨基吡啶,硫酸,水,Sodium Hydride,对甲苯磺酸,三乙胺体系中,用 四氢呋喃,甲醇,二氯甲烷,Mineral Oil 作为反应溶剂,化学反应 34.25H,反应生成 七聚乙二醇
参考文献:通过低聚乙二醇的高环化高效合成单分散聚乙二醇及其衍生物
标题:通过低聚乙二醇的高环化高效合成单分散聚乙二醇及其衍生物
摘要:已开发出一种基于大环硫酸盐(mcs)的单分散聚乙二醇(m-Peg)及其单官能化衍生物的方法.寡聚乙二醇(oeg)的大环化提供了mcs(最多62个成员的大环),作为一系列单官能化m-Peg的通用前体.通过mcs的反复亲核开环反应而无需进行基团保护和激活,可以轻松制备一系列m-Peg,包括史无前例的64-Mer(2850 Da).合成简单性与这种新策略的多功能性可能为m-Peg的更广泛应用铺平道路.
DOI:10.1002/anie.201410309

专利信息

专利号:WO-2023102600-A1
优先权日:2021-12-06
标题:Synthesis of amphiphilic block copolymers and polymeric nanofibers produced therefrom
发明人：ZETTERLUND PER B; ISHIZUKA FUMI; KIM HYUN JIN; CHATANI SHUNSUKE; NIINO HIROSHI
权利人:NEWSOUTH INNOVATIONS PTY LTD
摘要:The present disclosure relates to the field of synthesis of block copolymers, and polymeric nanofibers having a core-shell morphology produced therefrom. The present disclosure relates to the field of synthesis of block copolymers where one block is more hydrophobic than the other block and is a different composition. The disclosure also relates to uses of these polymeric nanofibers in various applications, such as reinforcing a polymeric matrix and for coatings applications.

专利号:US-5192520-A
优先权日:1989-09-13
标题:Synthesis of aluminosilicate zeolites of faujasite structure
发明人：DELPRATO FRANCOIS; GUTH JEAN-LOUIS; HOFFNER FREDERIQUE; ZIVKOV CATHERINE
权利人:ELF AQUITAINE
摘要:PCT No. PCT/FR90/00599 Sec. 371 Date May 10, 1991 Sec. 102(e) Date May 10, 1991 PCT Filed Sep. 11, 1990 PCT Pub. No. WO91/04226 PCT Pub. Date Apr. 4, 1991.An aluminosilicate gel containing an ST structuring agent whose composition is suitable for crystallization into a zeolite of the faujasite structural family is prepared. The gel then undergoes crystallization in order to form a zeolite precursor which consists of the zeolite containing the ST structuring agent in its cavities and channels, the zeolite being produced through the calcination of the precursor. The ST structuring agent consists of at least one compound from the alkylene polyoxides of formula (1) (I) in which R and R', identical or different, each represents H or an alkyl radical in C1 to C4, X designates H or OH, m is equal to 2 or 3 and can differ from one pattern to another, and n is a number from 1 to 12. The zeolites thus obtained have a Si:Al ratio which is greater than 1 and which can go beyond 3, and show a cubic symmetry. The zeolites can be used, directly or after cation exchange, as adsorbants or as catalyst constituents.

专利号:US-5393511-A
优先权日:1988-10-10
标题 :Synthesis of zeolites of faujasite structure
发明人：DELPRATO FRANCOIS; GUTH JEAN-LOUIS; ANGLEROT DIDIER; ZIVKOV CATHERINE
权利人:ELF AQUITAINE
摘要:A process is provided for the preparation of zeolites belonging to the faujasite structural class and exhibiting a Si:Al ratio higher than 1 in which a reaction mixture is first produced, which has a pH higher than 10 and contains water, a source of tetravalent silicon, a source of trivalent aluminum, a source of hydroxide ions in the form of a strong inorganic or organic base and a structuring agent ST so as to produce an aluminosilicate gel having the desired composition to permit its crystallization into a compound of the faujasite structural class. The gel obtained is kept at a temperature, pressure and for a sufficient period to effect the crystallization of the gel into a precursor of the zeolite consisting of the zeolite trapping the structuring agent ST in its cavities and the precursor is then subjected to a calcination to destroy the structuring agent and to produce the zeolite. The structuring agent ST consists of at least one compound belonging to the group formed by the carbon-containing macrorings and macropolyrings which contain in the rings heteroatoms chosen from oxygen, nitrogen, silicon and sulphur, and which contain 10 to 24 atoms per ring. Precursors of the zeolites are also provided.

专利号:US-2025268860-A1
优先权日:2021-10-22
标 题 :Composition for use in the cutaneous synthesis of hyaluronic acid, in an immuno-cutaneous response and to improve skin
发明人：BERNARD PHILIPPE
权利人:JR
摘要:A composition comprising baicalin or a derivative thereof, more particularly in combination with chlorogenic acid or a derivative thereof, as well as the cosmetic use of such a composition and its medical applications.

专利号:US-5098686-A
优先权日:1988-10-10
标题 :Synthesis of zeolites of faujasite structure
发明人：DELPRATO FRANCOIS; GUTH JEAN-LOUIS; ANGLEROT DIDIER; ZIVKOV CATHERINE
权利人:ELF AQUITAINE
摘要:PCT No. PCT/FR89/00522 Sec. 371 Date Jun. 8, 1990 Sec. 102(e) Date Jun. 8, 1990 PCT Filed Oct. 10, 1989 PCT Pub. No. WO90/03944 PCT Pub. Date Apr. 19, 1990.A process is provided for the preparation of zeolites belonging to the faujasite structural class and exhibiting a Si:Al ratio higher than 1 in which a reaction mixture is first produced which has a pH higher than 10 and contains water, a source of tetravalent silicon, a source of trivalent aluminum, a source of hydroxide ions in the form of a strong inorganic or orgnaic base and a structuring agent ST so as to produce an aluminosilicate gel having the desired composition to permit its crystallization into a compound of the faujasite structural class. The gel obtained is kept at a temperature, pressure and for a sufficient period to effect the crystallization of the gel into a precursor of the zeolite consisting of the zeolite trapping the structuring agent ST in its cavities and the precursor is then subjected to a calcination to destroy the structuring agent and to produce the zeolite. The structuring agent ST consists of at least one compound belonging to the group formed by the carbon-containing macrorings and macropolyrings which contain in the rings, heteroatoms chosen from oxygen, nitrogen, silicon and sulphur, and which contain 10 to 24 atoms per ring. Precursors of the zeolites are also provided.

专利号:SA-02230453-B1
优先权日:2001-09-07
标 题 :Methods for the synthesis of conjugate products of an insulin polypeptide with an oligomer, and conjugate products of a proinsulin polypeptide with an oligomer (and methods for their synthesis)