CAS: 542-62-1; Barium(2+),Dicyanide

专利信息

专利号:US-7652165-B2
优先权日:2002-12-19
标 题:Neutralization of isophorone nitrile synthesis products
发明人：OFTRING ALFRED; BRAUN GEROLD
权利人:BASF AG
摘要:The present invention relates to a process for preparing 3-cyano-3,5,5-trimethylcyclohexanone (isophoronenitrile) by reacting isophorone with hydrogen cyanide in the presence of a base as a catalyst to obtain a crude isophoronenitrile product, and subsequently distilling the crude isophoronenitrile product, with the addition before distillation of at least one specific sulfonic acid or specific carboxylic acid. In addition, the present invention relates to the use of a specific sulfonic acid or of a specific carboxylic acid as a neutralizing agent before distillation of a crude isophoronenitrile product which has been obtained by reacting isophorone with hydrogen cyanide in the presence of a base as a catalyst, in order to avoid precipitates in the neutralization of the base used as a catalyst with an acid.

专利号:US-4272507-A
优先权日:1978-05-24
标 题:Phenylaminothiophenacetic acids, their synthesis, compositions and use
发明人：FIGALA VOLKER
权利人:BYK GULDEN LOMBERG CHEM FAB
摘要:Phenylaminothiophenacetic acids of formula I (I) wherein R1 denotes a hydrogen atom, a chlorine atom, a bromine atom or a methyl group, R2 denotes a -CH2-COOH group or a -CH2-COOR6 group, R3 denotes a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group or a trifluoromethyl group, R4 has one of the meanings of R3, R5 denotes a hydrogen atom, a halogen atom or an alkyl group, R6 denotes an alkyl group (with from 1 to 5 carbon atoms), which is optionally substituted by hydroxyl, hydroxyalkoxy or alkanoyloxy groups, or a benzyl group and n denotes 1 or 2, and salts of the acids have outstanding antiphlogistic, analgesic and antipyretic activities.

专利号:US-3720697-A
优先权日:1971-03-01
标题 :Preparation of ortho-substituted aryl phosphines and metal complexes
发明人：FENTON D
权利人:UNION OIL CO
摘要:A METHOD IS DESCRIBED FOR THE PREPARATION OF MONOCYCLIC ARYL COMPOUNDS OF TRIVALENT GROUP V-A ELEMENTS WHEREIN THE ARYL SUBSTITUENT IS SUBSTITUTED IN ITS ORTHO POSITION WITH A HALOGEN, ALKYL, ARYLOXY OR ALJYLOXY SUBSTITUENT. THE RESULTANT COMPOUND IS USEFUL AS A LIGAND IN THE PREPARATION OF METAL COMPLEXES, SUCH AS COMPLEXES OF PALLADIUM AND PLATINUM, WHICH ARE CATALYSTS FOR HYDROCARBON CONVERSIONS SUCH AS OXIDATIONS OR HYROFORMYLATIONS. THE METHOD FOR THE ORTHO SUBSTITUTION OF THE AROMATIC COMPOUNDS COMPRISES THE REACTION OF A PALLADIUM OR PLATINUM CHELATE OF THE AROMATIC COMPOUND WITH SUBSTITUTING AGENYS SUCH AS HALOGEN OR HALIDE FOR THE HALOGENSUBSTITUTED, AN ALKYL HALID FOR THE ALKYL-SUBSTITUTED, OR AN ALKYL OR ARYK ORTHOFORMATE ESTER FOR THE ALKOLY OR ARYLOCYSUBSTITUTED COMPOUND. SUITABLE CHELATES FOR REACTION IN THIS METHOD OF SYNTHESIS ARE DISCLOSED IN MY APPLICATION, SER. NO. 873,641. FILED NOV. 3, 1969, NOW PAT. NO. 3,622,607.

专利号:CH-94850-A
优先权日:1918-06-25
标 题 :Process for the synthesis of ammonia.

专利号:DE-10259708-A1
优先权日:2002-12-19
标 题:Improved neutralization of isophoronenitrile synthesis discharges

专利号:US-2006058544-A1
优先权日:2002-12-19
标 题 :Neutralization of isophorone nitrile synthesis products