CAS: 696-59-3; 2,5-Dimethoxytetrahydrofuran

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4,4-二甲氧基丁醛 反应生成 2,5-二甲氧基四氢呋喃
参考文献:Andrade,Juan;Prescher,Gunter
标题:Andrade,Juan;Prescher,Gunter

专利信息

专利号:US-10662452-B2
优先权日:2016-09-05
标 题 :Strain of meyerozyma guilliermondii and its use in methods of catalytic synthesis of 2,5-dihydroxymethylfuran
发明人：LI NING; LI YANMEI; ZONG MINHUA
权利人:UNIV SOUTH CHINA TECH
摘要:A yeast strain and a method for the synthesis of 2,5-dihydroxymethylfuran using this strain are disclosed. The yeast strain is Meyerozyma guilliermondii SC 1103, which has been maintained in the China Center for Type Culture Collection (CCTCC, Wuhan, P.R. China) with an access No. of M2016144. The method for the synthesis of 2,5-dihydroxymethylfuran using this strain is described as follows: after pre-cultivation and cultivation, Meyerozyma guilliermondii SC 1103 cells are added into the buffer solutions containing 5-hydroxymethylfurfural and glucose; the biocatalytic reaction is conducted under designated conditions, thus affording 2,5-dihydroxymethylfuran. This disclosure has many advantages such as good selectivity, mild reaction conditions, environmental friendliness, high efficiency, and good yield.

专利号:US-2016052902-A1
优先权日:2013-04-25
标 题:Catalytic synthesis of reduced furan derivatives
发明人：SANBORN ALEXANDRA; BINDER THOMAS P
权利人:ARCHER DANIELS MIDLAND CO
摘要:The present invention relates to catalytic synthesis of furan derivatives from alkoxymethylfurfural ethers or acyloxymethylfurfural esters. More particularly, the invention pertains to furan derivatives obtained by use of a multifunctional catalyst system to carry out both hydrogenation of furan starting material and hydrolysis of the reduced furan derivative in a single reaction. The process allows recovering and recycling of alcohol or acid from the reaction product.

专利号:WO-2015155713-A1
优先权日:2014-04-09
标题 :Process for the regioselective synthesis of 1,3, 4 -substituted pyrazoles
发明人：MEAZZA GIOVANNI; MEREGHETTI PIERANGELO; SILLANI LAURA; FORGIA DANIELE; BELLANDI PAOLO
权利人:ISAGRO SPA
摘要:A process is described for the synthesis of pyrazoles having general formula (I) comprising the following steps: a) a mixture comprising an alkyl-hydrazine having formula (II) RNH-NH 2 and a compound having general formula (III) Rx 1 -X 1 -Rx-X 2 -Rx 2 , b) the mixture obtained in step a) is reacted with a compound having formula (IV), obtaining a 1,3,4-substituted pyrazole having general formula (I), according to the reaction scheme 1.

专利号:US-2024308991-A1
优先权日:2021-01-15
标 题:Process for the synthesis of reactive carbohydrates including antigen precursors for conjugation with a carrier material
发明人：SHIAO TZE CHIEH; MIGNANI SERGE; MOFFETT SERGE; VISHWAKARMA RAM
权利人:KORANEX CAPITAL
摘要:Carbohydrate of Formula (A)where R1 is H and n an integer from 1 to 5, is synthesized by reacting, under heating, compound (A0)with HO—(CH2)n—CHâ•?CH2 in the presence of an acid capable of liberating a proton, and cooling the reaction mixture to obtain a cooled mixture comprising compound (A).Carbohydrate of Formula (AAPG)where R2 is a monovalent protecting group, PG is a divalent protecting group and n an integer from 1 to 5, is synthesized by reacting, in the presence of a metal-containing zeolite, compound of Formula (APG)with compound of Formula (A1)where X is —I, —Br, —Cl, —CN, —OTf (Triflate), —OMs (Mesylate), —OTs (Tosylate), methylsulfate, or trichloroacetimidate. Deprotection of compound (AAPG) forms compound (AA)Carbohydrates (A) and (AA) can be coupled with a thiolated linker to form glycoconjugate precursors, which in turn are conjugatable with a carrier material such as a protein, peptide or polypeptide.

专利号:WO-8706234-A1
优先权日:1986-04-14
标题:Methods for the synthesis of polysilanes
发明人：ZEIGLER JOHN M
权利人:ZEIGLER JOHN M
摘要:A method of controlling the yield of polysilane of a desired molecular weight and/or polydispersity prepared in a reductive condensation of corresponding silane monomers on a solid catalyst dispersed in an inert solvent for both the monomers and the growing polymer chains, comprises determining the variation of molecular weight and/or polydispersity of the polysilane as a function of the solubility of the polysilane in reaction solvent, determining thereby a chosen optimum solubility of the polysilane in solvent for obtaining a desired yield of polysilane of said desired molecular weight and/or polydispersity, and thereafter carrying out the preparation of the polysilane in a solvent in which the polysiland has said chosen optimum solubility.

专利号:US-2012129963-A1
优先权日:2009-07-08
标题 :Synthesis of novel multifunctional cardanol's derivatives and their use as halogen free polyurethanic foams precursors
发明人：BENEDETTI ELENA; CAMPANER PIETRO; D AMICO DANIELE; MINIGHER ANDREA; STIFANI CRISTINA; TARZIA ANTONELLA
权利人:BENEDETTI ELENA; CAMPANER PIETRO; D AMICO DANIELE; MINIGHER ANDREA; STIFANI CRISTINA; TARZIA ANTONELLA
摘要:Cardanol derivative comprising one or more units of the formula and a method for obtaining such cardanol derivative.