
专利信息
专利号:US-5523434-A
优先权日:1995-03-15
标 题 :Synthesis of bleach activators
发明人:BURNS MICHAEL E; SIMPSON ANTHONY J
权利人:PROCTER & GAMBLE
摘要:The synthesis of phenol sulfonate esters of alkanoyl amino acids is conducted in the presence of aqueous base to provide bleach activator compounds. Thus, the acid chloride of N-nonanoyl-6-aminocaproic acid is reacted with the sodium salt of p-phenol sulfonate in the presence of water at a pH in the range of about 9 to about 12 to yield the corresponding phenol sulfonate ester. The synthesis of the phenol sulfonate ester of the monononyl amide of adipic acid is also illustrated.
专利号:WO-9507882-A1
优先权日:1993-09-14
标 题:Synthesis of amido acids from carboxylic acid esters and amino acid salts
发明人:HEINZMAN STEPHEN WAYNE; DUPONT JEFFREY SCOTT
权利人:PROCTER & GAMBLE
摘要:Chemical synthesis of amido acids, and their conversion to amido acid phenyl ester sulfonates for use as bleach activators, starting from carboxylic acid esters and amino acid salts.
专利号:US-9663365-B2
优先权日:2012-11-06
标 题 :Method for the direct synthesis of hydrogen peroxide
发明人:DESMEDT FRÉDÉRIQUE; VLASSELAER YVES; MIQUEL PIERRE
权利人:SOLVAY
摘要:The present invention relates to a method for the direct synthesis of hydrogen peroxide using a catalyst comprising at least one catalytically active metal selected from elements in Groups 7 to 11, wherein the catalytically active metal is supported on a carrier comprising at least one compound selected from the group consisting of sulfates and phosphates of alkaline-earth metals, wherein said compound is precipitated on the carrier.
专利号:US-5534642-A
优先权日:1993-09-14
标题 :Synthesis of amido acids from carboxylic acids and lactams
发明人:HEINZMAN STEPHEN W; DUPONT JEFFREY S; TETTENHORST WILLIAM C
权利人:PROCTER & GAMBLE
摘要:Chemical synthesis of amido acids, and their conversion to amido acid phenyl ester sulfates for use as bleach activators, starting from carboxylic acids and lactams.
专利号:US-6121487-A
优先权日:1998-07-28
标题 :Method of producing amino acids and amino-acid derivatives
发明人:VOGT ANNEGRET; ALTENBACH HANS-JOSEF; KIRSCHBAUM MICHAEL; HAHN MICHAEL-GOTTFRIED; MATTHAUS MIKE SIEGFRIED PAUL; HERMANN ANDREAS RAINER
权利人:DEGUSSA
摘要:The present invention is relative to a chemical method of producing compounds of the general formula (I) starting from compounds of the general formula (II) and (III) under radical conditions. Products I are used as intermediates in the synthesis of bioactive substances.
专利号:US-10766921-B2
优先权日:2016-05-18
标 题 :Process and intermediates for the 6,7-alpha-epoxidation of steroid 4,6-dienes
发明人:WEYMOUTH-WILSON ALEXANDER; KOMSTA ZOFIA; WALLIS LAURA; EVANS TIMOTHY
权利人:NZP UK LTD
摘要:The invention relates to a process for preparing a compound of general formula (Ia): wherein R2, Y, R4 and R5 are as defined herein, wherein the epoxidation is conducted using an oxidant and methyltrioxorhenium as a catalyst (MeReO3). The invention also relates to certain compounds per se. The compounds are intermediates in the synthesis of synthetic bile acids.