CAS: 63995-75-5; Sodium 3-(Diphenylphosphino)Benzenesulfonate

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CAS号112998-09-1 sodium 3-(diphe... | CAS号603-35-0 三苯基膦 | CAS号19713-73-6 Methyl (2Z)-3-p... | CAS号103-26-4 肉桂酸甲酯 | CAS号29874-10-0 Propanoic acid,... | CAS号30697-93-9 Propanoic acid,... | CAS号16704-71-5 3-diphenylphosp...

专利信息

专利号:US-10570114-B2
优先权日:2016-05-19
标题:Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct suzuki coupling
发明人：FISK JASON S; LI XIAOYONG; Muehlfeld Mark; BAUMAN ROBERT S; OPPENHEIMER JOSSIAN; TU SIYU; NITZ MARK A; CHAKRABARTI REETAM; FEIST SHAWN D; RINGER JAMES W; LENG RONALD B
权利人:DOW AGROSCIENCES LLC
摘要:Improved methods of synthesizing 6-aryl-4-aminopicolinates, such as arylalkyl and alkyl 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates and arylalkyl and alkyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates, are described herein. The improved methods include a direct Suzuki coupling step, which eliminates the protection/de-protection steps in the current chemical process, and therefore eliminates or reduces various raw materials, equipment and cycle time as well as modification of other process conditions including use of crude AP, use of ABA-diMe, and varying pH, catalyst concentration, solvent composition, and/or workup procedures. This includes synthesis of 2-aryl-6-aminopyrimidine-4-carboxylates.

专利号:US-2023174490-A1
优先权日:2020-03-18
标 题 :Improved synthesis of 6-aryl-4-aminopicolinates
发明人：ZHANG CHUNMING; TU SIYU; LENG RONALD B; IRVINE NICHOLAS; SCHUITMAN ABRAHAM; SHINKLE AARON; DEVARAJ JAYACHANDRAN; ZU CHENGLI
权利人:CORTEVA AGRISCIENCE LLC
摘要:The present disclosure relates to improved methods of synthesizing 6-aryl-4-aminopicolinates, such as arylalkyl and alkyl 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylates.

专利号:US-2018334444-A1
优先权日:2016-05-19
标 题:Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct suzuki coupling

专利号:US-2023357155-A1
优先权日:2020-03-18
标 题:Improved synthesis of 4-amino-6-(heterocyclic)picolinates
发明人：CANTURK BELGIN; DEVARAJ JAYACHANDRAN; HAZARI AMARUKA; KASSL CHRISTOPHER; LEE MELISSA; LI FANGZHENG; LOWE CHRISTIAN T; SIDDALL THOMAS L; WHITEKER GREGORY T; ZHANG CHUNMING
权利人:CORTEVA AGRISCIENCE LLC
摘要:The present disclosure relates to improved processes for preparing 4-amino-6-(heterocyclic)picolinates.

专利号:EP-3728174-A1
优先权日:2017-12-20
标题 :Synthesis of alkyl 2-acetyl-5,9,13-trimethyltetradeca-4,8,12-trienoates and derivatives by a non-continuous production process

专利号:US-2018334445-A1
优先权日:2016-05-19
标题:Synthesis of 6-aryl-4-aminopicolinates and 2-aryl-6-aminopyrimidine-4-carboxylates by direct suzuki coupling