CAS: 80432-08-2; 1H-Imidazolium, 1-Butyl-3-Methyl-

📜N-甲基咪唑,正溴丁烷 反应 36.0H,获得 1-Butyl-3-Methylimidazolium
参考文献:一种催化α-蒎烯二聚反应的方法
标题:一种催化α-蒎烯二聚反应的方法
摘要:本发明公开了一种具有‑lewis双酸性的无机‑有机复合杂多酸盐催化剂mn0.5[Mimps]2Pw12O40催化α‑蒎烯二聚反应的方法.其特征在于分别以共价键和离子键的形式将适当的酸中心和金属lewis酸中心引入催化剂的类离子液体阳离子结构中,催化剂制备方法简单,结构明确,活性组分稳定不流失,在α‑蒎烯二聚反应中表现出良好的催化活性和稳定性.该催化二聚方法具有简便易行,催化剂易分离和重复使用,环境友好等优点,为α‑蒎烯高附加值深加工替代化石资源开辟了一条可行新途径.

专利信息

专利号:US-7326805-B2
优先权日:2003-05-07
标题 :Method for the synthesis of 4-hydroxyisoleucine and the derivatives thereof
发明人：MIOSKOWSKI CHARLES; CATALA CEDRIC; WAGNER ALAIN
权利人:MIOSKOWSKI CHARLES; CATALA CEDRIC; WAGNER ALAIN
摘要:The invention relates to a method for the synthesis of two isomers, at function OH, alone or in mixtures, of amino acids α or the derivatives thereof, having general formula (B), wherein: linkage C—O of the 4-position carbon (represented by symbol) denotes one or other of isomers III or IV, or mixtures thereof. Moreover, R 1 and R 2 represent: a hydrogen atom; or either R 1 or R 2 represents a hydrogen atom and the other substituent is a radical R a , an acyl group —COR a , such as acetyl, or a functional group —COOR a , —SO 2 R a , —N (R a , R b ), R a and R b , which are identical or different, representing a C1-C12 linear or branched alkyl radical, optionally substituted, an aryl group with one or more aromatic rings and heterocycles, comprising between 5 and 8C, optionally substituted, or aralkyl, the alkyl substituent and the aryl group being as defined above; or R 1 and R 2 both represent a substituent as defined above. R 3 represents a hydrogen atom or R a and R 4 has the significance of R a . The invention is characterised in that it comprises: the isomerisation of a compound having formula (I), wherein R 1 , R 2 , R a , R 3 and R 4 are as defined above, such as to produce a compound having formula (II); and the reduction of the carbonyl function thereof which, depending on the catalytic system employed and the formula (I) compound used, produces one of the isomers having general formula (III) or (IV) or a mixture thereof having formula (B). The invention can be used for the synthesis of (2S, 3R, 4S)-4-hydroxyisoleucine.

专利号:US-2011245503-A1
优先权日:2008-11-28
标题 :Enantioselective synthesis of asymmetric beta-carboline intermediates
发明人：SANTOS LEONARDO; ESPINOZA MORAGA MARLENE; SHANKARAJAH NAGULA
权利人:UNIV TALCA
摘要:Described herein is a new asymmetric synthesis of imines to obtain β-carboline derivatives useful as key intermediate compounds for the synthesis of phosphodiesterase inhibitors using a new process with palladium or ruthenium hydride and/or nickel boride to reduce chiral intermediates. The use of chloroformate chiral auxiliaries is further described for the reduction and asymmetric hydrogenation of imines to obtain β-carboline derivatives and intermediate compounds used in the preparation thereof.

专利号:US-10597358-B2
优先权日:2015-01-16
标题:Synthesis of carbamate or urea compounds
发明人：VAN DER HEIJDEN ANTONIUS EDUARD DOMINICUS MARIA; VAN GEEST ERIK; VAN DEN ELSHOUT JOS JOHAN MATTHIJS HUGO
权利人:TNO
摘要:The invention pertains to the synthesis of carbamate and urea compounds. In particular the invention is directed to the synthesis of carbamate and urea compounds which may be used in the production of compounds that are used to stabilize nitrocellulose. The method of the invention comprises preparing a carbamate or urea derivative comprising reacting an amine and a carbonate or carbamate in the presence of an ionic liquid.

专利号:US-8269001-B2
优先权日:2005-10-05
标题 :Process for the synthesis of HMG-CoA reductase inhibitors
发明人：CASAR ZDENKO
权利人:CASAR ZDENKO; LEK PHARMACEUTICALS
摘要:A novel synthesis of statins uses Wittig reaction of a heterocyclic core of statin with a lactonized side chain already possessing needed stereochemistry. Any separation of diastereoisomers is performed early in the course of synthesis.

专利号:US-8637695-B2
优先权日:2011-12-30
标 题:Synthesis of organohalosilane monomers from conventionally uncleavable Direct Process Residue
发明人：LEWIS KENRICK MARTIN; NEELY JOHN DAVID
权利人:LEWIS KENRICK MARTIN; NEELY JOHN DAVID; MOMENTIVE PERFORMANCE MAT INC
摘要:Disclosed herein is a catalytic process for the synthesis of organohalosilane monomers from tetraorganodihalodisilanes and other compounds that are not cleaved during the conventional hydrochlorination of Direct Process Residue. The process is characterized by the use of a catalyst containing (1) one or more heterocyclic amines and/or one or more heterocyclic ammonium halides, and (2) one or more quaternary Group 15 onium compounds.

专利号:US-8785656-B2
优先权日:2012-02-16
标 题:Telescoping synthesis of 5-amino-4-nitroso-1-alkyl-1H-pyrazole salt
发明人：GEIBEL WOLFRAM; WEBER INGO; OSAN ARMIN; SPECKBACHER MARKUS
权利人:PROCTER & GAMBLE
摘要:A telescoping synthesis of 5-amino-4-nitroso-1-alkyl-1H-pyrazole salt derivatives of formula (I), the compound (I) itself, and its use as an intermediate in the fabrication of 1-alkyl-4,5-diaminopyrazole salts of general formula (IX). The compounds of formula (IX) can be used as precursor dyes in oxidative hair dye compositions. n n n n n n n n n n R is a mono- or poly-substituted or unsubstituted, straight or branched, saturated or mono- or poly-unsaturated, alkyl group. HZ and HZ′ are organic or mineral acids.