CAS: 70197-13-6; Methyltrioxorhenium (Vii)

上下游产品

dimethyl zinc(II) trifluoroacetylperrhenate methylzinc chloride perrhenylacetate4-(4-fluoro-3-trifluoromethyl-phenyl)-pyridine-1-oxide oenanthic acid methanol 1-oxy-quinoline-6-carboxylic acid methyl ester

📜在 2-Me-Pyridine N-Oxide体系中,用 水 作为反应溶剂,化学反应生成 甲基三氧化铼(Vii)
参考文献:水溶液中甲基二氧di鎓(v)反应的动力学和机理:二聚体形成和氧原子提取反应.
标题:水溶液中甲基二氧di鎓(v)反应的动力学和机理:二聚体形成和氧原子提取反应.
摘要:经次磷酸水溶液处理后,稳定的化合物ch3Reo3(mto)形成了称为mdo的无色亚稳态物质ch3Reo2(h2O)n(n = 2).静置后,首先将mdo转换为黄色二聚体(λmax = 348 Nm;ε= 1.3 X 10(4)l Mol-1 Cm-1).该反应遵循二级动力学,在298 K下于0.1 M三氟甲烷磺酸水溶液中k = 1.4 L Mol-1 S-1.动力学研究与温度的关系得出δs ++ =-4 +/-15 J K-1 Mol-1和δh ++ = 71.0 +/-4.6 Kj Mol-1.对于简单的二聚化,预期δs ++的负值会更大,这表明在形成过渡态时会释放一个或多个水分子.如果将二聚体的溶液放置更长时间,则会导致强烈的蓝色,然后沉淀出即使长时间后仍会沉淀的化合物,在该水溶液中保留re-Ch3键.过氧化氢产生独立已知的ch3Re(o)(o2)2(h2O).蓝色化合物可以类似于深着色的紫色阳离子[(cp
DOI:10.1021/ic000128H

专利信息

专利号:US-2007287843-A1
优先权日:2004-04-07
标题 :Methods and Intermediates for the Synthesis of Delta-9 Tetrahydrocannabinol
发明人：CABAJ JOHN E; PARIZA RICHARD J; LUKESH JULIE M
权利人:CABAJ JOHN E; PARIZA RICHARD J; LUKESH JULIE M
摘要:Processes are disclosed for the synthesis of Delta-9 tetrahydrocannabinol which result in an improved Y-THC/Y-THC ratio, and intermediates are disclosed that may be used in the synthesis of Delta-9 tetrahydrocannabinol such that improved Y-THCIY-THC ratios are achieved. The intermediates may be cyclic compounds prepared from 2-Carene. There is also provided a scaleable process for the preparation of (+)-p-menth-2-ene-1,8-diol, another intermediate used in the synthesis of delta-9-tetrahydrocannibinol.

专利号:US-11479577-B2
优先权日:2016-05-18
标题:Intermediates for the synthesis of bile acid derivatives, in particular of obeticholic acid
发明人：WEYMOUTH-WILSON ALEXANDER; KOMSTA ZOFIA; WALLIS LAURA; EVANS TIMOTHY; DAVIES IEUAN; OTTER CARL; BATCHELOR RHYS
权利人:NZP UK LTD
摘要:The present invention relates to compounds which are intermediates in the synthesis of bile acid derivatives with pharmacological activity. The invention relates to compounds of general formula (I):wherein:, R1, R2, R3, R4, R5, R6 and Y are as defined herein.The compounds are intermediates in the synthesis of synthetic bile acids which are useful in the treatment of conditions such as liver disease. In addition, the invention relates to a method of synthesizing these intermediates and a method of preparing obeticholic acid and obeticholic acid analogues from the compounds of the invention.

专利号:US-2006247457-A1
优先权日:2003-02-27
标题 :Method for the synthesis of methyl-tri-oxo-rhenium
发明人：TURCHETTA STEFANO; PIETRO MASSARDO; ANGELA TUOZZI
权利人:TURCHETTA STEFANO; PIETRO MASSARDO; ANGELA TUOZZI
摘要:A method for the synthesis of methyltrioxorhenium is described, wherein 0.5-1.5 moles of dirhenium heptaoxide are reacted with 1-3 moles of tetramethyl tin in the presence of 1-3 moles of chlorotrimethyl silane. The synthesis is carried out in the dark for approximately 24 hours in a polar aprotic organic solvent, preferably in acetonitrile.

专利号:WO-2024036115-A1
优先权日:2022-08-08
标题:Continuous flow synthesis of lorazepam
发明人：THOMPSON DAVID; BIYANI SHRUTI; HYUN SEOK-HEE; MCGUIRE MICHAEL
权利人:PURDUE RESEARCH FOUNDATION; CONTINUITY PHARMA LLC
摘要:A method for synthesis of Lorazepam in a continuous flow using continuous flow reactor, in which method comprises five steps including N-acylation, diazepine ring closure, imine N- oxidation, Polonovski-type rearrangement, and ester hydrolysis; a green reagent comprising a peroxide reagent and rhenium oxide catalyst for N-oxidation of delorazepam; and an ammonium source combination for the synthesis of delorazepam.

专利号:US-10787427-B2
优先权日:2017-09-01
标题:Synthesis of furan acids from xylonic acid
发明人：THOMAS DAVID
权利人:TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
摘要:According to an example aspect of the present invention, there is provided a synthesis method for producing furoic acid from a monoacid containing five carbons in the presence of pressure, heat, solvent and catalyst.

专利号:US-6121487-A
优先权日:1998-07-28
标题 :Method of producing amino acids and amino-acid derivatives
发明人：VOGT ANNEGRET; ALTENBACH HANS-JOSEF; KIRSCHBAUM MICHAEL; HAHN MICHAEL-GOTTFRIED; MATTHAUS MIKE SIEGFRIED PAUL; HERMANN ANDREAS RAINER
权利人:DEGUSSA
摘要:The present invention is relative to a chemical method of producing compounds of the general formula (I) starting from compounds of the general formula (II) and (III) under radical conditions. Products I are used as intermediates in the synthesis of bioactive substances.