CAS: 74974-60-0; Gallium Tris(Trifluoromethanesulfonate)

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128008-30-0 2926-30-9 144026-79-9

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CAS号1493-13-6 三氟甲烷磺酸 | CAS号13450-90-3 氯化镓 | CAS号13450-88-9 溴化镓(III) | CAS号13450-91-4 无水碘化镓(III) | CAS号7440-55-3 镓

专利信息

专利号:WO-2017030685-A1
优先权日:2015-08-14
标题 :One-pot synthesis of anhydropentitol mono- and diethers
发明人：STENSRUD KENNETH
权利人:ARCHER DANIELS MIDLAND CO
摘要:A process for preparing anhydropentitol mono- and diethers from C 5 sugar alcohols is described. The process involves performing in a single reaction vessel consolidated reactions that a) cyclize dehydratively a linear C 5 sugar alcohol and b) etherify a resulting anhydropentitol. Each of the reactions is catalyzed by a very low amount of a water-tolerant Lewis acid catalyst relative to the starting sugar-alcohol. Depending on the reaction conditions, the synthesis method is efficient, selective and affords good yields of mono- and diethers. The anhydropentiol ethers can serve as renewable substitute precursors of petroleum incumbents for use in the making of surfactants and plasticizers.

专利号:WO-2017100402-A1
优先权日:2015-12-11
标 题 :One-pot synthesis of anhydropentitol esters from pentitols, catalyzed by water-tolerant lewis acids
发明人：STENSRUD KENNETH
权利人:ARCHER DANIELS MIDLAND CO
摘要:A procedure for preparing anhydropentitol mono, di, and tri esters is described. The process is performed in a single vessel and involves sequential dehydrative cyclization and carboxylic acid acylation steps. Each step is catalyzed by low loadings of a water-tolerant Lewis acid catalyst. The method of synthesis is efficacious and depending on the reaction condition, generates modest to high yields of the target mono-, di-, and triesters. The esters can be practical surrogates of incumbent petroleum materials of similar structure used for surfactants and plasticizers.

专利号:US-9487537-B2
优先权日:2013-06-12
标 题:Synthesis of isohexide dicarbamates and derivatives thereof
发明人：STENSRUD KENNETH
权利人:ARCHER DANIELS MIDLAND CO; ARCHER DANIELS MIDLAND CO
摘要:Dicarbamates of the reduction products of 2-hydroxymethyl-5-furfural (HMF) and a method of preparing the same are described. The method involves reacting a mixture of an isohexide and a cynate salt in a non-aqueous solvent, with a miscible acid having a pKa of about 3.7 or less. The dicarbamates of HMF-reduction products can serve as precursor materials from which various derivative compounds can be synthesized.

专利号:US-2017121258-A1
优先权日:2014-04-10
标题 :Synthesis of r-glucosides, sugar alcohols, reduced sugar alcohols, and furan derivatives of reduced sugar alcohols
发明人：SANBORN ALEXANDRA; BINDER THOMAS P
权利人:ARCHER DANIELS MIDLAND CO
摘要:Disclosed herein are methods for synthesizing 1,2,5,6-hexanetetrol (HTO), 1,6 hexanediol (HDO) and other reduced polyols from C5 and C6 sugar alcohols or R glycosides. The methods include contacting the sugar alcohol or R-glycoside with a copper catalyst, most desirably a Raney copper catalyst with hydrogen for a time, temperature and pressure sufficient to form reduced polyols having 2 to 3 fewer hydoxy groups than the starting material. When the starting compound is a C6 sugar alcohol such as sorbitol or R-glycoside of a C6 sugar such as methyl glucoside, the predominant product is HTO. The same catalyst can be used to further reduce the HTO to HDO.

专利号:US-10519124-B2
优先权日:2014-04-10
标题 :Synthesis of R-glucosides, sugar alcohols, reduced sugar alcohols, and furan derivatives of reduced sugar alcohols
发明人：STENSRUD KENNETH; Ma chi-cheng; MARTIN KEVIN
权利人:ARCHER DANIELS MIDLAND CO
摘要:Disclosed herein are methods for synthesizing 1,2,5,6-hexanetetrol (HTO), 1,6 hexanediol (HDO) and other reduced polyols from C5 and C6 sugar alcohols or R glycosides. The methods include contacting the sugar alcohol or R-glycoside with a copper catalyst, most desirably a Raney copper catalyst with hydrogen for a time, temperature and pressure sufficient to form reduced polyols having 2 to 3 fewer hydoxy groups than the starting material. When the starting compound is a C6 sugar alcohol such as sorbitol or R-glycoside of a C6 sugar such as methyl glucoside, the predominant product is HTO. The same catalyst can be used to further reduce the HTO to HDO.

专利号:US-2018258059-A1
优先权日:2014-04-10
标题:Synthesis of r-glucosides, sugar alcohols, reduced sugar alcohols, and furan derivatives of reduced sugar alcohols