CAS: 150114-71-9; Aminopyralid

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CAS号1918-02-1 毒莠定

4-Amino-3,5,6-Trichloro-2-Pyridinecarboxylic Acid Monopotassium Salt置于potassium Hydroxide体系中,用 水 用作溶剂,化学反应 6.67H,以94.1%的收率获得4-氨基-3,6-二氯吡啶-2-甲酸
参考文献:一种电化学选择性脱氯制备4-氨基-3,6-二氯 吡啶甲酸的方法
标题:一种电化学选择性脱氯制备4-氨基-3,6-二氯 吡啶甲酸的方法
摘要:本发明公开了一种电化学选择性脱氯制备4‑氨基‑3,6‑二氯吡啶甲酸的方法,所述方法为:采用隔膜电解槽,以电子级超纯水配制的4‑氨基‑3,5,6‑三氯吡啶甲酸盐水溶液为阴极液,以电子级超纯水配制的碱金属氢氧化物水溶液为阳极液,以镍基材料为阳极,以纯度99.95%‑99.99%的银为阴极;在电流密度为1~20A/dm2,反应温度为0~90oc的条件下进行电解反应,电解反应完全后,阴极液分离纯化得到4‑氨基‑3,6‑二氯吡啶甲酸;本发明采用电子级超纯水配制的阴极液和阳极液,能够高选择性脱氯制备4‑氨基‑3,6‑二氯吡啶甲酸,产品收率上升4‑10%和纯度上升2‑5%.

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: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-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.

专利号:US-2021386068-A1
优先权日:2018-11-07
标题 :Compositions comprising pyridine carboxylate herbicides and very long chain fatty acid (vlcfa) synthesis inhibitor herbicides
发明人：KISTER JEREMY; SATCHIVI NORBERT M
权利人:CORTEVA AGRISCIENCE LLC
摘要:Disclosed herein are compositions comprising (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof and (b) a VLCFA synthesis inhibitor herbicide. Also disclosed herein are methods of controlling undesirable vegetation, comprising applying to vegetation or an area adjacent the vegetation or applying in soil or water to control the emergence or growth of vegetation (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof, and (b) a VLCFA synthesis inhibitor herbicide.

专利号:US-2021352899-A1
优先权日:2018-11-07
标题 :Compositions comprising pyridine carboxylate herbicides and fatty acid and lipid synthesis inhibitor herbicides
发明人：KISTER JEREMY; SATCHIVI NORBERT M
权利人:CORTEVA AGRISCIENCE LLC
摘要:Disclosed herein are compositions comprising (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof and (b) a fatty acid and lipid synthesis inhibitor (FA/LSI) herbicide, an agriculturally acceptable salt or ester thereof, or mixtures thereof. Also disclosed herein are methods of controlling undesirable vegetation, comprising applying to vegetation or an area adjacent the vegetation or applying in soil or water to control the emergence or growth of vegetation (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof and (b) a fatty acid and lipid synthesis inhibitor (FA/LSI) herbicide, an agriculturally acceptable salt or ester thereof, or mixtures thereof.