styreneN-nitrosamide of N-(4-nitrophenyl)acetamide4-nitro-phenolethanol1-(4-nitro-phenyl)-pyrrolidine1-(4-nitrophenyl)piperidine1-morpholino-4-nitrobenzene1-(4-Nitrophenyl)piperazine
专利号:US-4267070-A 优先权日:1979-10-30 标题:Catalyst for the synthesis of aromatic monoisocyanates 发明人:NEFEDOV BORIS K; MANOV-JUVENSKY VLADIMIR I; DERGUNOV JURY I; RYSIKHIN ANATOLY I; CHIMISHKIAN ALEXANDR L 权利人:NEFEDOV BORIS K; MANOV JUVENSKY VLADIMIR I; DERGUNOV JURY I; RYSIKHIN ANATOLY I; CHIMISHKIAN ALEXANDR L 摘要:A catalyst for the synthesis of aromatic monoisocyanates comprising 1.64 to 16.6% by weight of palladium chloride, 0.16 to 47.6% by weight of an oxide of a metal of Group VB of the periodic system, 1.5 to 81.8% by weight of an oxide of a metal of Group VI B of the periodic system, 1.64 to 89.8% by weight of pyridine or an alkylsubstituted pyridine. n The use of the catalyst according to the invention in the synthesis of aromatic monoisocyanates makes it possible to obtain a high degree of conversion of the starting compound of up to 100%, a high yield of the desired product of up to 97%, and increased productivity of the catalyst of up to 40 g of the desired product per g of PdCl 2 per hour.
专利号:US-9845289-B2 优先权日:2014-08-01 标题 :Process for the synthesis of Dapsone and its intermediates 发明人:BARATELLA MARCO; CASTALDI GRAZIANO; CASTALDI MARTA; GABOARDI MAURO; PALLANZA GIUSEPPE 权利人:SEEGPHARM SA 摘要:A process for the synthesis of Dapsone and intermediates thereof are described.
专利号:US-7531694-B2 优先权日:2004-07-07 标题:Process for synthesis of 4-4′-diamino-diphenyl-sulfone 发明人:VILLA MARCO; DE FAVERI CARLA; ZANOTTI RICCARDO; CIARDELLA FRANCESCO; BORIN FABRIZIO 权利人:LUNDBECK PHARMACEUTICALS ITALY 摘要:A new process for the preparation and purification of 4-4′-diamino-diphenyl-sulfone (dapsone) is described. The process described is a three step process comprising a condensation reaction with the synthesis of a thioether intermediate and then steps of oxidation and reduction in suitable conditions in order to obtain a product with good yield and purity.
专利号:US-5354439-A 优先权日:1990-07-16 标 题 :Process for the synthesis of fluorinated derivatives 发明人:FORAT GERARD; GILBERT LAURENT; LANGLOIS BERNARD 权利人:RHONE POULENC CHIMIE 摘要:A process for the synthesis of fluorinated organic compounds and a reagent suitable for use in the process. The process is carried out by exchange with fluorides, while preferably agitating the reaction medium with ultrasonic sound.
专利号:US-2004044225-A1 优先权日:2001-06-01 标 题:Chiral and achiral synthesis of 2-acyl substituted chromanes and their derivatives 发明人:KANTER JAMES; MARLOWE CHARLES; PANDEY ANJALI; MULLINS JOHN J G; SCARBOROUGH ROBERT; BUTKE GREG; JACOBSON BARRY; WALKER DEREK 摘要:Disclosed are processes for producing a (2S) or (2R) 4-oxo-chroman-2-yl acyl compounds and chroman-2-yl acyl compounds, esters or amides thereof as well as derivatives thereof. Such processes may involve chiral synthesis or achiral synthesis, preferably coupled with a resolution procedure. Such compounds, particularly (2S) or (2R) acetic acid esters, are useful intermedates for producing platelet aggregation inhibitors and/or are themselves potent platelet aggregation inhibitors. Further disclosed are processes for making derivatives of such substantially pure, or enhanced compositions of single (2R) or (2S) enantiomer intermediates or processes for producing final products or salts from such desired enantiomers.
专利号:US-4683332-A 优先权日:1985-05-20 标 题 :Para-nitrodiphenylamine synthesis 发明人:STURM BUDD H 权利人:GOODYEAR TIRE & RUBBER 摘要:There is disclosed a process for the synthesis of para-nitrodiphenylamines via the Formanilide Process wherein the improvement is characterized in that a specific catalyst is utilized. More specifically, a zinc (II) compound (zinc in the plus two oxidation or valence state), is used as a catalyst in the preparation of para-nitrodiphenylamines via the formanilide process.
参考标题:Efficient Copper(I)-Catalyzed C-S Cross-Coupling Of Thiols With Aryl Halides In An Aqueous Two-Phase System 作者:Xin-Yan Zhang,Xiao-Yan Zhang,Sheng-Rong Guo |发布日期:2011.2.1 摘要:A Mild And Convenient C-S Bond Formation Reaction Catalyzed By Cui/l-Proline In An Aqueous Two-Phase System Was Achieved, Providing A Simple Method For The Synthesis Of Aryl Sulfides In Good Yields.
合成参考文献
参考文献:10.1021/jo2007219 摘要:Imoto M, Matsui Y, Takeda M, Tamaki A, Taniguchi H, Mizuno K, Ikeda H. A probable hydrogen-bonded Meisenheimer complex: an unusually high S(N)Ar reactivity of nitroaniline derivatives with hydroxide ion in aqueous media. J Org Chem. 2011 Aug 05;76(15):6356–61. doi: 10.1021/jo2007219.