CAS: 110-65-6; But-2-Yne-1,4-Diol

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2,2'-[2-Butyne-1,4-Diylbis(Oxy)]Bis(Tetrahydro-2H-Pyran)置于三氯异氰尿酸体系中,用 甲醇 用作溶剂,化学反应 6.0H,以91%的收率获得丁炔二醇
参考文献:作为一种安全,廉价的工业化学品,在催化量的三氯异氰尿酸 (Tcca) 存在下,醇的有效四氢吡喃化和去四氢吡喃化反应
标题:作为一种安全,廉价的工业化学品,在催化量的三氯异氰尿酸 (Tcca) 存在下,醇的有效四氢吡喃化和去四氢吡喃化反应
摘要:摘要 在三氯异氰脲酸 (Tcca) 存在下,在没有溶剂的情况下,不同羟基官能团的 Thp 醚的制备和裂解很容易且高效地进行,收率很高.
Doi:10.1081/scc-200031053

专利信息

专利号:US-9409945-B2
优先权日:1999-10-04
标 题 :Combinatorial synthesis of libraries of macrocyclic compounds useful in drug discovery
发明人：DESLONGCHAMPS PIERRE; DORY YVES; BERTHIAUME GILLES; OUELLET LUC; LAN RUOXI
权利人:OCERA THERAPEUTICS INC
摘要:A library of macrocyclic compounds of the formula (I) n n n n n n n n n n n n where part (A) is a n n n n n n n n n n n n n n n n  bivalent radical, a —(CH 2 ) y — bivalent radical or a covalent bond; n where part (B) is a n n n n n n n n n n n n n n n n  bivalent radical, a —(CH 2 ) z — bivalent radical, or a covalent bond; n where part (C) is a n n n n n n n n n n n n n n n n  bivalent radical, a —(CH 2 ) t — bivalent radical, or a covalent bond; and n where part (T) is a —Y-L-Z— radical wherein Y is CH 2 or CO, Z is NH or O and L is a bivalent radical. These compounds are useful for carrying out screening assays or as intermediates for the synthesis of other compounds of pharmaceutical interest. A process for the preparation of these compounds in a combinatorial manner, is also disclosed.

专利号:US-2024352216-A1
优先权日:2021-08-20
标 题:Pyrolysis of a polymeric polyurethane compound in order to recover raw materials
发明人：EIDEN STEFANIE; BELLINGHAUSEN RAINER; WOLF AUREL; ALBACH ROLF
权利人:COVESTRO DEUTSCHLAND AG
摘要:The invention relates to a method according to claim 1 for the commercial implementation of a pyrolysis, and to pyrolysis devices for the pyrolysis of pyrolysis stock used in this method. The pyrolysis stock contains a polymeric compound having at least one structural polyurethane unit of the formula (I), wherein Q is a hydrocarbon group with 2 to 8 carbon atoms, preferably 3 to 8 carbon atoms, and n represents a number from 2 to 4, most preferably 2, and -* represents a covalent bond to the polymer backbone. The method and the pyrolysis device according to the invention allow, even with higher compounds of pyrolysis stock an amount of pyrolysis product to be obtained that contains cleavage products which can be reused for the synthesis of polyurethane-containing material.

专利号:US-10336912-B2
优先权日:2014-08-01
标 题 :Methods for producing and using aqueous polyurethane/polyacrylate hybrid dispersions and use of said aqueous polyurethane/polyacrylate hybrid dispersions in coating agents
发明人：JAHNS EKKEHARD; MANGEL TIMO; ROESCH CHRISTINE; ROMANATO PAOLA; BURK YENI; PAKUSCH JOACHIM
权利人:BASF SE
摘要:The present invention provides an aqueous polyurethane (PU)-polyacrylate hybrid dispersion obtainable by free radical polymerization of at least one acrylate polymer (A1) in the presence of at least one polyurethane (P1), a process for preparing these aqueous polyurethane-polyacrylate hybrid dispersions, wherein said process comprises a) preparing an aqueous polyurethane dispersion and b) using the polyurethane dispersion thus prepared as raw material for the further synthesis of a polyacrylate dispersion, and the use of the hybrid dispersion thus obtained as binder in filled coating materials, particularly as a binder for flexible roof coatings.

专利号:US-2006115536-A1
优先权日:2004-11-12
标 题 :Glycerin based synthesis of silver nanoparticles and nanowires
发明人：YACAMAN MIGUEL J; ELECHIGUERRA JOSE L; BURT JUSTIN L; MORONES JOSE R; LOPEZ LETICIA L
权利人:UNIV TEXAS
摘要:The present invention includes compositions and methods for the production of noble metal nanoparticles and nanowires conjugated to polyols or polymers. The present invention allows the incorporation of noble metal nanoparticles to a wide range of products such as body care products to exploit the biocidal properties of silver nanoparticles against bacteria, viruses and fungi.

专利号:US-4160771-A
优先权日:1975-11-17
标题 :Synthesis of tetrahydrofuran
发明人：TAYLOR PAUL D
权利人:CELANESE CORP
摘要:This invention provides a process for producing tetrahydrofuran by the reaction of 3-(5'-alkyl-1',3'-dioxane)propionaldehyde and/or 3-(5'-alkyl-1',3'-dioxane)propanol and/or 4-hydroxybutanal with hydrogen in an aqueous medium having a pH between about 0.1 and 5. Maintenance of the reaction medium within the specified acidic range of pH is an important feature of the invention process.

专利号:US-9527826-B2
优先权日:2013-01-30
标 题:Single step process for conversion of furfural to tetrahydrofuran
发明人：RODE CHANDRASEKHAR VASANT; BIRADAR NARAYAN SHAMRAO; HENGNE AMOL MAHALINGAPPA
权利人:COUNCIL SCIENT IND RES
摘要:The present patent discloses a one step process for the synthesis of THF and related ring hydrogenated products form furfural using Palladium metal based carbon supported catalyst with high selectivity and 100% conversion in both batch and continuous modes.