CAS: 61213-25-0; Flurochloridone

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CAS号61213-51-2 4-(chloromethyl...

N-烯丙基-N-二氯乙酰间三氟甲基苯胺置于2,2'-联吡啶,Copper(L) Chloride体系中,用 1,2-二氯乙烷 作为反应溶剂,化学反应 3.0H,以97.6%的收率获得产物氟咯草酮
参考文献:一种提高氟咯草酮环化合成收率的工艺
标题:一种提高氟咯草酮环化合成收率的工艺
摘要:本发明涉及一种提高氟咯草酮环化合成收率的工艺,以n‑烯丙基‑n‑二氯乙酰基‑间三氟甲基苯胺为原料,无水1,2‑二氯乙烷作溶剂,控制溶剂量为10~45Ml/g原料,以氯化亚铜做主催化剂,2,2'‑联吡啶做助催化剂,控制主催化剂与助催化剂摩尔比为1∶1,催化剂用量为10~30Mol%,控制反应温度为70~90oc反应至原消失,反应液经硅胶柱过滤,二氯甲烷洗脱,即制备得到氟咯草酮.与现有技术相比,本发明只需短的硅胶柱过滤,无需蒸馏,重结晶等纯化即可得到含量>=95%氟咯草酮的原药,反顺比>=3∶1,环化收率>=95%.

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-3894027-A
优先权日:1973-07-31
标 题:Resolution of racemic reticuline and racemization of its enantiomers
发明人：SOHAR PAUL; SCHOENEWALDT ERWIN F
权利人:MERCK & CO INC
摘要:Racemic reticuline is resolved by forming a crystalline diastereomeric acid salt with a mandelic acid enantiomer. The reticuline enantiomers are racemized by treatment with a reduced noble metal or noble metal oxide catalyst. (-)-Reticuline is a valuable intermediate useful in the synthesis of thebaine, and (+)-reticuline is useful as a precursor of pallidine, sinoacutine, coreximine, and the berberine alkaloids.

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.