CAS: 210631-68-8; Topramezone

上下游产品

1,4-dioxane 3-(3-bromo-2-methyl-6-(methylsulfonyl)phenyl)-4,5-dihydroisoxazole 1-methyl-5-hydroxypyrazole 5-hydroxy-1-methyl-1H-pyrazole hydr°Chloride

2,3-二甲基苯甲硫醚置于吡啶,Aluminum (III) Chloride,N-氯代丁二酰亚胺,Copper(L) Iodide,氯化亚砜,磺酰氯,Sodium Tungstate (Vi) Dihydrate,亚硝酸丁酯,硫酸,双氧水,Sodium Ethanolate,溶剂黄146,氯苯体系中,用 N,N-二甲基甲酰胺,乙腈,苯 用作溶剂,-20.0~100.0 °C,600.01 Kpa 条件下,反应 57.5H,反应生成苯唑草酮
参考文献:一种苯唑草酮的中间体及苯唑草酮的制备方法
标题:一种苯唑草酮的中间体及苯唑草酮的制备方法
摘要:本发明涉及有机合成领域,尤其涉及一种苯唑草酮的中间体及苯唑草酮的制备方法,包括如下步骤:3‑[3‑卤‑2‑甲基‑6‑(甲磺酰基)苯基]‑4,5‑二氢异噁唑与氰化盐发生取代反应得到3‑[3‑氰基‑2‑甲基‑6‑(甲磺酰基)苯基]‑4,5‑二氢异噁唑;3‑[3‑氰基‑2‑甲基‑6‑(甲磺酰基)苯基]‑4,5‑二氢异噁唑在酸或碱的作用下水解反应得到2‑甲基‑3‑(4,5‑二氢异噁唑‑3‑基)‑4‑甲磺酰基苯甲酸;2‑甲基‑3‑(4,5‑二氢异噁唑‑3‑基)‑4‑甲磺酰基苯甲酸与1‑甲基‑5‑羟基吡唑缩合重排生成苯唑草酮.本发明提供的苯唑草酮的中间体及苯唑草酮的制备方法,避免了昂贵的钯催化剂和危险的丁基锂试剂的使用,收率较高,降低了成本,简化了工艺,克服了现有技术的不足,具有工业化的价值.

专利信息

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:WO-2024088279-A1
优先权日:2022-10-25
标 题 :Preparation method for topramezone intermediate
发明人：LIU BINLONG
权利人:PURPANA BEIJING TECH CO LTD
摘要:Disclosed in the present invention is a synthesis method for a 4-methylthio-3-aldehyde-2-methylbenzoate topramezone intermediate represented by general formula V. The reaction synthesis route thereof is as follows: R is an ester, carboxylic acid, amide or cyano group, R 1 and R 2 are independently selected from alkyls, preferably C 1 -C 4 alkyls, and X is a halogen, preferably fluorine, chlorine, bromine and iodine. The preparation method provided in the present invention has good reaction selectivity in each step and high yield, and effectively solves technical problems in the synthesis of some other topramezone intermediates. The entire process route can easily achieve industrialization.

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.