CAS: 55667-40-8; 1R-Cis-Permethrinic Acid

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CAS号65731-84-2 高效氯氰菊酯 | CAS号52315-02-3 (2-methyl-4-oxo...

📜(+/-)-Cis-2-(2,2-Dichloroethenyl)-3,3-Dimethylcyclopropanecarboxylic Acid Chloride置于吡啶,Sodium Hydroxide体系中,用 四氢呋喃,甲醇 作为反应溶剂,化学反应生成 1R-顺式二氯菊酸
参考文献:Duke,Colin C.; Wells,Robert J.,Australian Journal Of Chemistry,1987,Vol. 40,# 10,P. 1641-1654
标题:Duke,Colin C.; Wells,Robert J.,Australian Journal Of Chemistry,1987,Vol. 40,# 10,P. 1641-1654

专利信息

专利号:US-4328173-A
优先权日:1979-04-03
标题:Resolution of D,L-cis and D,L-trans 2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane-1-carboxylic acids and salts thereof
发明人：JOLLY JEAN; GIGLIOTTI GIUSEPPE; PAVAN CHARLES; BULIDON JACQUES
权利人:ROUSSEL UCLAF
摘要:A novel process for the resolution of D,L-cis and D,L-trans 2,2-dimethyl-3-(2,2 -dihalovinyl)-cyclopropane-1-carboxylic acids of the formula ##STR1## wherein X is selected from the group consisting of fluorine, chlorine and bromine comprising salifying the said acid with an optically active base selected from the group consisting of D-ephedrine, L-ephedrine, D-N-methyl-ephedrine, L-N-methylephedrine, D-pseudo-ephedrine and L-pseudo-ephedrine to form the corresponding salt, recovering the said salt and subjecting the latter to acid hydrolysis to obtain the corresponding resolved acid which are intermediates for the synthesis of esters having a remarkable insecticidal activity.

专利号:EP-0494146-B1
优先权日:1990-07-27
标 题 :Process for the preparation of optically active or racemic cyclopropane-carboxylic-acid chlorides
发明人：SZEKELY ISTVAN; ZOLTAN SANDOR; NAGY LAJOS; BERTOK BELA; SOMFAI EVA; HIDASL GYOERGY; IMREI LAJOS; LAK ISTVAN; THURNER ANGELIKA
权利人:CHINOIN GYOGYSZER ES VEGYESZET
摘要:The present invention relates to a new process for the preparation of cyclopropane carboxylic acid chlorides of formula (I), wherein A is a halogen atom or a C1-4 alkyl group, line SIMILAR is indicating an alpha or beta space position compared to the plane of the cyclopropane ring. The compounds of formula (I) are intermediates of the pyrethroide synthesis.

专利号:CN-105567746-A
优先权日:2015-12-31
标题 :A method for enzymatic synthesis of pyrethroid insecticide intermediates

专利号:US-5925676-A
优先权日:1996-09-13
标题 :Ester compounds pesticidal compositions containing the same and itermediates for synthesis thereof
发明人：IWASAKI TOMONORI; TSUSHIMA KAZUNORI; SUGANO MASAYO
权利人:SUMITOMO CHEMICAL CO
摘要:An ester compound represented by the formula ##STR1## wherein R 1 and R 2 may be the same or different and each represent a C 1 -C 6 alkyl group, or other specified groups, which may be optionally substituted with one or more halogen atoms; and R 3 represents a pyrethroid acid residue (a group resulting from elimination of the carboxyl group from pyrethroid acid), and a pesticidal composition containing the ester compound as an active ingredient.