CAS: 503-40-2; Methanedisulfonicacid

相似化合物

6291-65-2 54322-33-7 855472-46-7

上下游产品

CAS号74-95-3 二溴甲烷 | CAS号34557-54-5 methane | CAS号60-35-5 乙酰胺 | CAS号123-43-3 磺基乙酸 | CAS号75-75-2 甲基磺酸 | CAS号75-47-8 三碘甲烷 | CAS号67-66-3 氯仿 | CAS号108-24-7 乙酸酐 | CAS号75-36-5 乙酰氯 | CAS号579-10-2 N-甲基乙酰苯胺 | CAS号71-23-8 正丙醇 | CAS号513-35-9 2-甲基-2-丁烯 | CAS号544-01-4 异戊醚 | CAS号78-83-1 异丁醇 | CAS号22063-28-1 dimethyl methan... | CAS号115-10-6 二甲醚 | CAS号75-75-2 甲基磺酸 | CAS号23248-58-0 bis(2-oxopropyl... | CAS号5799-68-8 亚甲基二磺酰二氯 | CAS号124-38-9 二氧化碳

碘仿置于potassium Sulfite体系中,化学反应生成 亚甲基二磺酸
参考文献:Strecker,Justus Liebigs Annalen Der Chemie,1868,Vol. 148,P. 92
标题:Strecker,Justus Liebigs Annalen Der Chemie,1868,Vol. 148,P. 92

专利信息

专利号:EP-1586566-B9
优先权日:2004-03-29
标 题:P-toluenosulfonate salt of N-Methyl-N-(3,5-dimathoxy-2,4,6-triazinyl-1-)-morpholine and related compounds for use as condensing reagent in peptide synthesis
发明人：KAMINSKI ZBIGNIEW; KOLESINSKA BEATA; KOLESINSKA JUSTYNA; JASTRZABEK KONRAD
权利人:POLITECHNIKA LODZKA; KAMINSKI ZBIGNIEW; KOLESINSKA BEATA
摘要:The invention refers to new quarternary N-(3,5-disubstituted-1,3,5-triazinyl-1)-ammonium salts of sulfonic acids, with formula 1, where R1 and R2 denote in total or independently a halogen atom, an alkyl group, a substituted alkyl group, an alkoxy group, a substituted alkoxy group, a cycloalcoxy group, a substituted cycloalkoxy group, an aryl group, a substituted aryl group, an aryloxy group, a substituted aryloxy group, a heterocyclic group or a substituted heterocyclic group, preferably the methoxy group, where R3, R4, R5 denote independently each other an alkyl group, a substituted alkyl group, a cycloalkyl group, a substituted cycloalkyl group, an aryl group, a substituted aryl group, a heterocyclic or a substituted heterocyclic group, or form a heterocyclic ring with nitrogen atom, whereas O-SO2R6 denotes a sulfate anion, hydrosulfonate anion, arylsulfonate anion, preferable benzenosulfonate anion, p-toluenosulfonate anion, p-bromobenzenosulfonate anion, p-chlorobenzenosulfonate anion, alkylosulfonate anion, preferable methanosulfonate and trifluoromethanesulfonate anions or amidosulfonate anion. The new compounds are designed for application as condensing reagents in syntheses of amides, esters, carboxylic acid hydroxides, and particularly in synthesis of peptides and their esters.

专利号:US-5244945-A
优先权日:1992-07-20
标题 :Synthesis of plastics from recycled paper and sugar cane
发明人：ELION GLENN R
权利人:INT COMMUNICATIONS & ENERGY
摘要:A method is provided for preparing a cellulose ester plastic composition from waste paper (e.g. recycled paper) and/or sugar cane bagasse. The paper or bagasse is reacted with an acid anhydride in the presence of a catalyst to esterify some of the hydroxy groups on the cellulose. The resulting cellulose ester product is combined with various additives such as acetins, agricultural fillers, and carbon particles.

专利号:US-3681297-A
优先权日:1970-11-10
标 题 :Synthesis of polybenzothiazolines and polybenzothiazoles by reacting a dialdehyde with an aromatic bis-mercaptoamine
发明人：ALELIO GAETANO FRANCIS D
权利人:GAETANO FRANCIS D ALELIO
摘要:THIS INVENTION DEALS WITH A NOVEL, RELATIVELY SIMPLE PROCESS OF PREPARING POLYBENZOTHIAZOLINES, ((-NH-CH(-)-S-)>AR<(-NH-CH(-Z(-))-S-))N BY REACTING DIALDEHYDES, Z-(CH=O)2, AND (HS)2-AR(-NH2)2 IN A SOLVENT IN AN INERT ATMOSPHERE AND THEREAFTER OXIDIZING THE POLYBENZOTHIAZOLINES TO POLYBENZOTHIAZOLES, ((-N=C(-)-S-)>AR<(-N=C(-Z(-))-S-))N WHEREIN AR REPRESENTS A TETRAVALENT AROMATIC MOIETY IN WHICH THE NITROGEN AND SULFUR ATOMS IN EACH PAIR ARE DISPOSED ORTHO TO EACH OTHER AND Z REPRESENTS A DIVALENT HYDROCARBON MOIETY AS THE RESIDUE OF THE DIALDEHYDE, Z(CHO)2. NEW TYPES, AS WELL AS THE KNOW TYPES OF POLYBENZOTHIAZOLES HAVE BEEN PREPARED BY THIS PROCESS.

专利号:US-5428155-A
优先权日:1984-10-18
标题 :Synthesis of polyazamacrocycles with more than one type of side-chain chelating groups
发明人：SHERRY A DEAN; WESTRENEN JEROEN VAN
权利人:UNIV TEXAS
摘要:The pH controlled selectivity of the sulfomethylation reaction is used to prepare a series of di-, tri-, tetra- and hexaazacyclomacrocycles with specified patterns of pendent side-chain chelating groups. The prepared mono and diacetic acid derivatives, together with monomethylenephosphonate and monomethylenephosphinate derivatives of [12]aneN4, [12]aneN3 and [9]aneN3, make these types of ligands easily available by a synthetic pathway that avoids the use of protective groups. The invention thus comprises a variety of compounds, methods and uses characterized by relatively high synthetic yields of polyazamacrocyclic ligands exhibiting a wide and predictable choice of metal ion binding constants water and lipid solubilities by reason of their substituent pendent groups.

专利号:US-5756606-A
优先权日:1997-05-22
标题:Means to control particle size and eliminate fouling in the synthesis of syndiotactic 1,2 - polybutadiene
发明人：WONG TANG HONG
权利人:GOODYEAR TIRE & RUBBER
摘要:Syndiotactic 1,2-polybutadiene is a thermoplastic resin which has double bonds attached in an alternating fashion to its polymeric backbone. Films, fibers and molded articles can be made utilizing syndiotactic 1,2-polybutadiene. It can also be blended into rubbers and cocured therewith. It is generally preferred to synthesize syndiotactic 1,2-polybutadiene in an aqueous medium by suspension or emulsion polymerization. In such aqueous polymerization techniques reactor fouling and particle size control problems are frequently encountered. This invention is based upon the unexpected finding that reactor fouling can be greatly reduced or eliminated and that particle size can be regulated by conducting such aqueous polymerizations in the presence of a controlled amount of dissolved oxygen which is within the range of about 0.01 ppm to about 4 ppm. This invention more specifically discloses a process for preparing syndiotactic 1,2-polybutadiene in an aqueous medium with minimal reactor fouling which comprises polymerizing 1,3-butadiene monomer in the aqueous medium in the presence of (1) a catalyst system which is comprised of (a) transition metal compound, (b) an organoaluminum compound and (c) at least one member selected from the group consisting of carbon disulfide, phenyl isothiocyanate and xanthic acid and (2) from about 0.01 ppm to about 4 ppm of oxygen.\\!

专利号:US-2013089740-A1
优先权日:2010-06-29
标题:Synthesis and use of iron oleate
发明人：BURDINSKI DIRK; BOHLENDER CARMEN
权利人:BURDINSKI DIRK; BOHLENDER CARMEN; KONINKL PHILIPS ELECTRONICS NV
摘要:The present invention relates to a method of forming an iron oleate complex comprising the steps of: (a) dissolving an oleate in a low-order alcohol solvent at a temperature of about 35° C. to 65° C.; (b) adding a non-polar solvent to the solution of step (a); (c) adding an iron salt dissolved in a low-order alcohol to the solution of step (b); (d) agitating the solution of step (c) at a temperature of about 50° C. for at least 5 min; (e) cooling the reaction mixture of step (d) to a temperature of about 15° C. to 30° C.; (f) optionally filtering the reaction mixture of step (e); (g) separating the non-polar solvent phase from the low-order alcohol phase; (h) washing and drying the non-polar solvent phase; (i) removing volatiles from the non-polar solvent phase of step (h) by evaporation; and (j) mixing the product of step (i) with a polar solvent to yield a solid iron oleate complex. The present invention further relates to an iron oleate complex obtainable by the method of the invention, an iron oleate complex of formula I, the use of the iron oleate complex of the invention as precursor for the preparation of nanoparticles, and a method of forming iron oxide nanoparticles comprising the suspension of iron oxide/hydroxide and the iron oleate complex of the invention.