CAS: 43222-48-6; 1,2-Dimethyl-3,5-Diphenyl-1H-Pyrazol-2-Ium Methyl Sulfate

上下游产品

1-methyl-3,5-diphenyl-1H-pyrazole dimethyl sulfate 1,2-dichloro-ethane 1,1,1-trichloroethane1-methyl-3,5-diphenyl-1H-pyrazole 1-ethyl-2-methyl-3,5-diphenylpyrazolium ethyl sulfate 1-ethyl-3,5-diphenyl-1H-pyrazole 1,2-dimethyl-3,5-diphenyl-2-pyrazolinium perchlorate

📜1-甲基-3,5-二苯基-吡唑置于硫酸体系中,用 甲醇,二氯甲烷 作为反应溶剂,以93.4%的收率获得产物野燕枯
参考文献:Method Of Preparing 1,2-Dimethyl-3,5-Diarylpyrazolium Methylsulfates
标题:Method Of Preparing 1,2-Dimethyl-3,5-Diarylpyrazolium Methylsulfates
摘要:一种制备式i的1,2-二甲基-3,5-二芳基吡唑甲基硫酸盐的方法,其中r^1和r^2独立地是氢,C_1-C_4烷基,C_3-C_8环烷基,C_1-C_4烷氧基,卤素,硝基,C_1-C_4卤代烷基或芳基,所有这些在反应条件下均是惰性的.在该方法中,将式ii的1-甲基-3,5-二芳基吡唑(其中r^1和r^2具有上述含义)与a) 甲醇和so_3,B) 甲醇和硫酸或可选地c) 甲醇和甲基硫酸在高温下反应.

专利信息

专利号:WO-2025056767-A1
优先权日:2023-09-15
标题 :Process for the preparation of enantiomerically enriched aliphatic amines
发明人：BOU HAMDAN FARHAN; GODINEAU EDOUARD; SMEJKAL TOMAS; DUMEUNIER RAPHAEL; BOUSSEMGHOUNE MOHAMED ABDELOUAHAB; BLUM MATHIAS
权利人:SYNGENTA CROP PROTECTION AG
摘要:The present invention relates to a process for the preparation of enantiomerically enriched cyclobutylamines of formula (I) from α-tertiary cyclobutanones and reacting said enantiomerically enriched cyclobutylamines to enantiomerically enriched cyclobutylamides. Such compounds are useful intermediates in the synthesis of microbiocidal thiazole compounds.

专利号:US-2016073631-A1
优先权日:2013-03-04
标 题 :Process for the preparation of dihydropyrrole derivatives
发明人：EL QACEMI MYRIEM; SMITS HELMARS; CASSAYRE JEROME YVES; MULHOLLAND NICHOLAS PHILLIP; RENOLD PETER; GODINEAU EDOUARD; PITTERNA THOMAS
权利人:SYNGENTA PARTICIPATIONS AG; SYNGENTA LTD
摘要:The present invention provides stereoselective processes for the preparation of compounds of formula (I) n n n n n n n n n n n n wherein n P is phenyl, naphthyl, a 6-membered heteroaryl group containing one or two nitrogen atoms as ring members, or a 10-membered bicyclic heteroaryl group containing one or two nitrogen atoms as ring members, and wherein the phenyl, naphthyl and heteroaryl groups are optionally substituted; n R 1 is chlorodifluoromethyl or trifluoromethyl; n R 2 is optionally substituted aryl or optionally substituted heteroaryl; n n is 0 or 1; n including the process comprising n (a-i) reacting a compound of formula II n n n n n n n n n n n n n n n n wherein P, R 1 and R 2 are as defined for the compound of formula I; n with nitromethane in the presence a chiral catalyst to give a compound of formula III n n n n n n n n n n n n n n n n wherein P, R 1 and R 2 are as defined for the compound of formula I; and n (a-ii) reductively cyclising the compound of formula III to give the compound of formula I. n n n n n The invention also provides intermediates useful for processes for the synthesis of compounds of formula (I).

专利号:WO-2024256370-A1
优先权日:2023-06-13
标 题 :Synthesis of glufosinate using an amidase-based process
发明人：ZIMMERMANN GUNTHER; POTT MORITZ STEFAN
权利人:BASF SE
摘要:The present invention relates to a method of preparing glufosinate, comprising the steps of hydrolysing an N-carbamoyl glufosinate amide with an Amidase enzyme to form an N- carbamoyl amino acid compound followed by cleaving off the carbamoyl moiety of said N- carbamoyl amino acid compound.

专利号:US-9233920-B2
优先权日:2010-06-11
标题 :Process for the preparation of dihydropyrrole derivatives
发明人：EL QACEMI MYRIEM; SMITS HELMARS; CASSAYRE JEROME YVES; MULHOLLAND NICHOLAS PHILLIP; RENOLD PETER; GODINEAU EDOUARD; PITTERNA THOMAS
权利人:EL QACEMI MYRIEM; SMITS HELMARS; CASSAYRE JEROME YVES; MULHOLLAND NICHOLAS PHILLIP; RENOLD PETER; GODINEAU EDOUARD; PITTERNA THOMAS; SYNGENTA PARTICIPATIONS AG; SYNGENTA LTD
摘要:The present invention provides stereoselective processes for the preparation of compounds of formula (I) wherein P is phenyl, naphthyl, a 6-membered heteroaryl group containing one or two nitrogen atoms as ring members, or a 10-membered bicyclic heteroaryl group containing one or two nitrogen atoms as ring members, and wherein the phenyl, naphthyl and heteroaryl groups are optionally substituted; R 1 is chlorodifluoromethyl or trifluoromethyl; R 2 is optionally substituted aryl or optionally substituted heteroaryl; n is 0 or 1; including the process comprising (a-i) reacting a compound of formula II wherein P, R 1 and R 2 are as defined for the compound of formula I; with nitromethane in the presence a chiral catalyst to give a compound of formula III Wherein P, R 1 and R 2 are as defined for the compound of formula I; and (a-ii) reductively cyclizing the compound of formula III to give the compound of formula I. The invention also provides intermediates useful for processes for the synthesis of compounds of formula (I).

专利号:US-2025120400-A1
优先权日:2021-12-10
标题:Synthesis of glufosinate using a hydantoinase-based process
发明人：DITRICH KLAUS; BREUER MICHAEL; POTT MORITZ STEFAN; ZIMMERMANN GUNTHER; SEEMAYER STEFAN
权利人:BASF SE
摘要:The present invention relates to a method of manufacturing glufosinate, comprising the steps of hydrolysing a hydantoin with a Hydantoinase enzyme to form a N-carbamoyl amino acid compound followed by cleaving off the carbamoyl moiety of said N-carbamoyl amino acid compound.

专利号:US-11919928-B2
优先权日:2016-03-16
标题 :Method for producing dihydrotentoxin
发明人：KUBO TAKASHI; MACHIDA MASAYUKI; FUJIOKA TOMONORI; YAMAGUCHI Shigenari; KAWAI KIYOSHI
权利人:KUMIAI CHEMICAL INDUSTRY CO
摘要:An object of the present invention is to identify an enzyme having activity of synthesizing dihydrotentoxin that is a tentoxin precursor and an enzyme having activity of synthesizing tentoxin using dihydrotentoxin as a substrate. The present invention concerns a tentoxin synthesis-related gene encoding a protein comprising the amino acid sequence of SEQ ID NO: 16 and having activity of nonribosomal peptide synthesis of dihydrotentoxin and a tentoxin synthesis-related gene encoding a protein comprising the amino acid sequence of SEQ ID NO: 18 and having activity of converting dihydrotentoxin to tentoxin.