CAS: 7783-71-3; Tantalum(V) Fluoride

上下游产品

chlorine trifluoride hydrogen fluoride fluorine tantalum pentachloride1,1,2-trichloro-2,2-difluoroethane HCFC-141b ammonium tantalum hexafluoride 5)2O,O-diphenyl-N-benzoylamidophosphate(TaF5)2

📜以70%的收率获得产物氟化钽(V)
参考文献:Hahn,O.; Puetter,K. E.,Zeitschrift Fur Anorganische Und Allgemeine Chemie
标题:Hahn,O.; Puetter,K. E.,Zeitschrift Fur Anorganische Und Allgemeine Chemie

专利信息

专利号:US-8115002-B2
优先权日:2006-09-20
标 题:Preparation of substituted morphinan-6-ones and salts and intermediates thereof
发明人：WANG PETER X; MOSER FRANK W; CANTRELL GARY L; GROTE CHRISTOPHER W
权利人:WANG PETER X; MOSER FRANK W; CANTRELL GARY L; GROTE CHRISTOPHER W; MALLINCKRODT LLC
摘要:The present invention is directed to processes for the synthesis of morphinan-6-ones and salts, intermediates, and analogs thereof.

专利号:US-5068472-A
优先权日:1989-12-19
标 题 :Multistep synthesis of hexafluoropropylene
发明人：WEBSTER JAMES L; TROFIMENKO SWIATOSLAW; RESNICK PAUL R; BRUHNKE DOUGLAS W; LEROU JAN J; MANOGUE WILLIAM H; MANZER LEO E; MCCANN ELREY L; SWEARINGEN STEVEN H; TRAINHAM JAMES A; BONIFAZ CRISTOBAL
权利人:DU PONT
摘要:The present invention relates to multistep syntheses of hexafluoropropylene from hexachloropropylene. In all these syntheses the first step is a fluorination of the starting material; later steps convert the initial products to CF 3 --CFCl--CF 3 , which is dehalogenated to the desired product.

专利号:US-5026944-A
优先权日:1989-12-20
标题:Synthesis of isobutene from methane and acetylene
发明人：ALLENGER VINCENZA; PANDEY RAJ N; YARLAGADDA PRASAD
权利人:CA MINISTER ENERGY
摘要:A process is described in which methane is reacted with acetylene in the presence of a solid acid catalyst containing fluoride to produce isobutene in high yields. The process may take place at room temperature or lower and atmospheric pressure. The conversion of acetylene typically approaches 100% and the methane conversion has been found to surpass stoichiometric requirements.

专利号:US-7838677-B2
优先权日:2005-03-10
标 题:Processes for preparing morphinans and intermediates thereof
发明人：WANG PETER XIANQI; MOSER FRANK W; CANTRELL GARY L; BAO JIAN
权利人:MALLINCKRODT INC
摘要:The present invention is directed to processes for the synthesis of morphinans. In particular, a process for cyclizing a β,γ-bicyclic ketone compound to form a nordihydrothebainone product using the Grewe cyclization reaction is improved by forming a reaction mixture comprising a β,γ-bicyclic ketone compound, a cyclizing acid and a water scavenging cyclization additive. In one embodiment, the Grewe transformation occurs in the presence of an acid anhydride as the cyclization additive. Further, the present invention is directed to processes for converting α,β-bicyclic ketone compounds (e.g., by-products of the Grewe cyclization reaction) to β,γ-bicyclic ketone compounds, wherein the β,γ-bicyclic ketone compounds may be recovered to further undergo Grewe cyclization and form the nordihydrothebainone product.

专利号:EP-0434408-A1
优先权日:1989-12-19
标题 :Multistep synthesis of hexafluoropropylene

专利号:EP-0434408-B1
优先权日:1989-12-19
标 题 :Multistep synthesis of hexafluoropropylene