[DE] VERFAHREN ZUR HERSTELLUNG VON QUARTÄREN AMMONIUMVERBINDUNGEN BEI UMGEBUNGSDRUCK [EN] METHOD FOR THE PRODUCTION OF QUARTERNARY AMMONIA COMPOUNDS AT ATMOSPHERIC PRESSURE [FR] PROCEDE DE PRODUCTION DE COMPOSES D'AMMONIUM QUATERNAIRE A LA PRESSION AMBIANTE
[DE] VERFAHREN ZUR HERSTELLUNG VON QUARTÄREN AMMONIUM-VERBINDUNGEN<br/>[EN] METHOD FOR PRODUCING QUATERNARY AMMONIUM COMPOUNDS<br/>[FR] PROCÉDÉ DE PRODUCTION DE COMPOSÉS D'AMMONIUM QUATERNAIRES
申请人:BASF AG
公开号:WO2005115969A1
公开(公告)日:2005-12-08
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von quartären Ammonium-Verbindungen, bei dem man Verbindungen, die ein sp3-hybridisiertes Stickstoffatom enthalten, mit einem Dialkylsulfat oder Trialkylphosphat umsetzt und die so erhaltene Ammonium-Verbindung einem Anionenaustausch unterzieht.
Method for Producing Quaternary Ammonium Compounds
申请人:Szarvas Laszlo
公开号:US20070254822A1
公开(公告)日:2007-11-01
The present invention relates to a process for preparing quaternary ammonium compounds, which comprises reacting compounds comprising an sp
3
-hybridized nitrogen atom with a dialkyl sulfate or trialkyl phosphate and subjecting the resulting ammonium compound to an anion exchange.
[EN] STRUCTURE DIRECTING AGENT FOR IMPROVED SYNTHESIS OF ZEOLITES<br/>[FR] AGENT DIRECTEUR DE STRUCTURE POUR SYNTHÈSE DE ZÉOLITES AMÉLIORÉE.
申请人:SACHEM INC
公开号:WO2016149234A1
公开(公告)日:2016-09-22
The present invention relates to structure directing agents for synthesis of crystalline materials generally known as zeolites, by use of an enhanced content of the trans isomer of a 3,5-dimethyl-N,N-dimethylpiperidinium cation together with the conventional oxides used to form zeolites.
Ionic liquid forms of the herbicide dicamba with increased efficacy and reduced volatility
作者:O. Andreea Cojocaru、Julia L. Shamshina、Gabriela Gurau、Anna Syguda、Tadeusz Praczyk、Juliusz Pernak、Robin D. Rogers
DOI:10.1039/c3gc37143c
日期:——
and phosphonium cations with the dicamba anion. Growth chamber and field test data suggested that ionic liquid forms of dicamba offer substantially increased efficacy which would allow less to be applied in the field. Compared to the commercial dicamba free acid product, improved physical properties were observed including higher decomposition temperatures and reduced volatilities, suggesting a potential
Method for Producing Fluorine-Containing Cyclopropane Carboxylic Acid Compound
申请人:CENTRAL GLASS COMPANY, LIMITED
公开号:US20180186763A1
公开(公告)日:2018-07-05
The present invention provides an industrially applicable method for production of a fluorine-containing cyclopropane carboxylic acid compound useful as an intermediate for pharmaceutical and agrichemical products. A fluorine-containing cyclopropane monoester is obtained by: forming a fluorine-containing cyclic sulfate with the use of a fluorine-containing dial compound and sulfuryl fluoride (as a cyclic sulfuric esterification step); reacting the fluorine-containing cyclic sulfate with a malonic diester, thereby forming a fluorine-containing cyclopropane diester (as a cyclopropanation step); and hydrolyzing the fluorine-containing cyclopropane diester (as a hydrolysis step). The fluorine-containing cyclopropane carboxylic acid compound, such as fluorine-containing cyclopropane monoester or its salt, can be obtained with high chemical and optical purity by mixing the fluorine-containing cyclopropane monoester with an amine and subjecting the resulting salt of the fluorine-containing cyclopropane monoester and amine to recrystallization purification.