CAS: 506-64-9; Silver Cyanide

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CAS号7440-22-4 纳米银粉 | CAS号75-05-8 乙腈 | CAS号57-12-5 cyanide | CAS号14701-21-4 Silver, ion | CAS号768296-31-7 dicyano argenta... | CAS号71680-52-9 tetrabutylammon... | CAS号3315-16-0 氰酸银 | CAS号6763-65-1 lithium dicyano... | CAS号74-90-8 氢氰酸 | CAS号7783-99-5 亚硝酸银 | CAS号1116-01-4 tricyanophosphine | CAS号460-19-5 氰 | CAS号375-22-4 七氟丁酸 | CAS号356-10-5 heptafluoroprop... | CAS号422-64-0 五氟丙酸 | CAS号377-14-0 hydroxy-pentafl... | CAS号56522-24-8 叔丁基氰基二甲基硅烷 | CAS号506-77-4 氯化氰 | CAS号2074-87-5 cyanyl | CAS号542-54-1 4-甲基戊腈

📜Potassium Dicyanoargentate(I) 以 溶剂黄146 作为反应溶剂,化学反应生成 氰化银
参考文献:Berthelot,M.,Annales De Chimie Et De Physique,1899,Vol. 17,P. 458-470
标题:Berthelot,M.,Annales De Chimie Et De Physique,1899,Vol. 17,P. 458-470

专利信息

专利号:US-3956184-A
优先权日:1974-04-24
标题:Method of preparing silver catalyst for synthesis of formaldehyde by oxidizing methyl alcohol
发明人：KRUGLIKOV ANATOLY ABRAMOVICH; YAKOVENKO ZEMFIRA IVANOVNA; ROZNINA MARINA IVANOVNA; ROGACHEVA ANNA MALOFEEVNA; BELOUSOV GERMAN IVANOVICH
权利人:KRUGLIKOV ANATOLY ABRAMOVICH; YAKOVENKO ZEMFIRA IVANOVNA; ROZNINA MARINA IVANOVNA; ROGACHEVA ANNA MALOFEEVNA; BELOUSOV GERMAN IVANOVICH
摘要:The method of preparing a silver catalyst for synthesis of formaldehyde by oxidizing methyl alcohol which consists in that a carrier is impregnated with an aqueous or an aqueous-alcohol solution containing complex ions of silver having the general formula [Ag(X) n ] + or [Ag(Y) 2 ] - , where X is ammonia, ethylenediamine, triethylenetetramine or triaminotriethylamine, Y is a thiocyanate, cyanide, acetate, or hydroxyl ion, and n is 1 or 2. The impregnated carrier is processed, at a temperature of from 10° - 100°C, with a reducing agent taken in the quantity sufficient to reduce the silver completely from said ion. The thus-prepared catalyst is dried at a temperature of from 80° to 400°C. It is recommended that the catalyst be washed with water before drying. The thus-prepared catalyst has a highly developed active surface with a small content of silver (the specific surface of the catalyst is 0.7 - 7 square meters per gram, with the metal silver content of the catalyst being from 5 - 10 per cent by weight). The catalyst is highly active and has good selectivity in the process of formaldehyde synthesis from methyl alcohol. The yield of formaldehyde with the proposed catalyst is from 75 - 80 per cent, calculating with reference to the passed methyl alcohol, with the selectivity of the process being from 89 - 95 per cent.

专利号:US-4226770-A
优先权日:1978-02-10
标题:Synthesis of steroids
发明人：KAISER EMIL T
权利人:KAISER EMIL T
摘要:The synthesis of 1α,25-dihydroxycholesterol, 1α,25-dihydroxy-7-dehydrocholesterol and 1α,25-dihydroxycholecalciferol and other sterol derivatives from bile acids. Also the synthesis of 3,6-diketo steroids useful in the production of 1α,25-dihydroxycholesterol and other sterols which are biologically active or can be converted to biologically active sterols. The invention involves the sterols so produced and the processes by which they are prepared.

专利号:US-4163744-A
优先权日:1978-02-10
标 题:Synthesis of steroids
发明人：KAISER EMIL T
权利人:KAISER EMIL T
摘要:The synthesis of 1α,25-dihydroxycholesterol, 1α,25-dihydroxy-7-dehydrocholesterol and 1α,25-dihydroxycholecalciferol and other sterol derivatives from bile acids. Also the synthesis of 3,6-diketo steroids useful in the production of 1α,25-dihydroxycholesterol and other sterols which are biologically active or can be converted to biologically active sterols. The invention involves the sterols so produced and the processes by which they are prepared.

专利号:US-4134904-A
优先权日:1977-08-30
标 题 :Synthesis of steroids
发明人：KAISER EMIL T
权利人:KAISER EMIL T
摘要:The synthesis of 25-hydroxycholesterol from animal bile starting materials in which hyodeoxychloic acid or an ester thereof is converted to the 3β-hydroxy-5-cholenic acid alkyl ester, and then converted to 3β-hydroxy-25-cyano-5-cholene by a series of steps in which the sterol nucleus is stablized by use of a 3α,5α-bridge sometimes called an i-steroid configuration, and the carbon chain then extended from the carbon at the 24-position to a cyanide group at the 25-position. The compound so formed is subjected to a series of reactions by which it is transformed into 25-hydroxy-7-dehydrocholesterol which may then be irradiated with ultraviolet light to 25-hydroxycholecalciferol. The invention discloses new and improved processes for preparing these end products and also the compounds formed as intermediates and processes for preparing these intermediates.

专利号:US-2016207894-A1
优先权日:2013-10-17
标 题:Synthesis of Diacids, Dialdehydes, or Diamines from THF-Diols
发明人：STENSRUD KENNETH
权利人:ARCHER DANIELS MIDLAND CO
摘要:A simple and elegant chemical process for the synthesis of oxygenated products, such as acids and aldehydes, or other derivative products, such as amines and nitriles, of cyclic bifunctional molecules made from renewable, bio-based sources such as HMF and/or its reduction product, 2,5-bis(hydroxymethyl)-tetrahydrofuran (bHMTHF) is described. In general, the process involves: a) generating a tetrahydrofuran-2,5-diyl-bis(methylene)-bis(sulfonate) from bHMTHFs using a sulfonate; b) displacing nucleophilically at least a sulfonate leaving group from the tetrahydrofuran-2,5-diyl-bis(methylene)-bis(sulfonate) to form a THF-dinitrile; and either c) oxidizing the THF-dinitrile with an acid having a pKa of ≦0 to generate a di-acid, or d) reducing partially the THF-dinitrile to generate a di-aldehyde, or e) reducing fully the THF-dinitrile to generate a di-amine.

专利号:WO-0172706-A1
优先权日:2000-03-28
标题 :Synthesis of [r-(r*,r*)]-2-(4-fluorophenyl)-beta,delta-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1h-pyrrole-1-heptanoic acid hemi calcium salt (atorvastatin)
发明人：SAMBASIVAN GANESH; SRIDHARAN MADHAVAN; PADUDEVASTANA SATHYASHANKER; POORNAPRAJNA ACHARYA; MATHEW JOY; SRINATH SUMITHRA; NAIR SATHEESH
权利人:BIOCON LTD; SAMBASIVAN GANESH; SRIDHARAN MADHAVAN; PADUDEVASTANA SATHYASHANKER; POORNAPRAJNA ACHARYA; MATHEW JOY; SRINATH SUMITHRA; NAIR SATHEESH
摘要:The present invention discusses a novel process for the synthesis of [R-(R*,R*)]-2-(4-fluorophenyl)-B,D-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic acid hemi calcium salt by using 4-fluoro-α-[2-methyl-1-oxopropyl]η-oxo-N-β-diphenylbenzene butaneamide with (4R)-methyl 6-(2-aminoethyl)-2,2-dimethyl-1,3-dioxane-3-acetate. The compound so prepared is useful as inhibitors of the enzyme HMG-CoA reductase and are thus used as hypolipidemic and hypocholesterolemic agents.