CAS: 21087-64-9; Metribuzin

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CAS号812-01-1 氯磺酸甲酯 | CAS号33509-43-2 4-氨基-6-(叔丁基)-3-... | CAS号74-88-4 碘甲烷 | CAS号74-83-9 溴甲烷 | CAS号64529-56-2 乙嗪草酮 | CAS号35045-02-4 嗪草酮多巴胺 | CAS号56507-37-0 DK嗪草酮 | CAS号52236-30-3 嗪草酮DADK | CAS号56742-45-1 N-Methyl Metribuzin

氯磺酸甲酯 反应生成嗪草酮
参考文献:Schmidt,T.
标题:Schmidt,T.

专利信息

专利号:US-4326056-A
优先权日:1980-05-29
标 题 :Process for the production of 4-amino-6-tert. butyl-3-mercapto-1,2,4-triazin-5-one
发明人：KLEEMANN AXEL; LEHAMNN BERND; KLENK HERBERT
权利人:DEGUSSA
摘要:4-amino-6-tert.butyl-3-mercapto-1,2,4-triazin-5-one of the formula is produced by reacting pivaloyl cyanide and isobutylene in the presence of acetic acid and sulfuric acid, hydrolyzing the reaction mixture in the presence of water and reacting the trimethyl pyruvic acid formed with thiocarbohydrazide. The triazinone is an important intermediate product in the synthesis of the known herbicide 4-amino-6-tert.butyl-3-methylmercapto-1,2,4-triazin-5-one.

专利号:US-8192762-B2
优先权日:2005-06-01
标题 :Preparation of soluble and colloidal molecularly imprinted polymers by living polymerization
发明人：KARIM KHALKU; PILETSKY SERGEY ANATOLIYOVICH; PILETSKA OLENA VOLODIMIRIVNA; TURNER ANTHONY PETER FRANCIS; CHIANELLA IVA; GUERRIERO ANTONIO RICARDO LEONARDO
权利人:KARIM KHALKU; PILETSKY SERGEY ANATOLIYOVICH; PILETSKA OLENA VOLODIMIRIVNA; TURNER ANTHONY PETER FRANCIS; CHIANELLA IVA; GUERRIERO ANTONIO RICARDO LEONARDO; UNIV CRANFIELD
摘要:The present invention describes a method for synthesis of relatively low molecular weight imprinted polymers using living polymerization, and their application in analytical chemistry, pharmacology, medicine and the food industry. Specifically the low-molecular weight polymers are synthesized by the polymerization of functional monomers in the presence of a template, such as a biological receptor, enzyme, nucleic acid, cell, virus, microorganism, tissue sample or drug using living initiator. The conditions of living polymerization ensure a relatively small size of synthesized molecules. Synthesized in this way molecules (dimers, oligomers, polymers, or their mixture) have a higher affinity to the template than the original monomers and can rebind it in vitro and/or in vivo. As a further aspect of the present invention, polymers synthesized as described above can be used as drugs in pharmacology and medicine, as receptor-specific ligands in analytical chemistry (sensors, assays), and for separations in the biotechnology, pharmaceutical and food industries.

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-4370498-A
优先权日:1980-03-08
标题 :Preparation of α-ketocarboxylic acid N-acylamides
发明人：BONSE GERHARD; BLANK HEINZ U
权利人:BAYER AG
摘要:α-Ketocarboxylic acid N-acylamides of the formula n n R.sup.1 --CO--CO--NH--CO--R.sup.2 n n in which n R 1 is an optionally substituted aliphatic radical with up to 12 carbon atoms, an optionally substituted cycloalkyl radical with 3 to 10 carbon atoms, an optionally substituted heterocyclic radical, and n R 2 is an optionally substituted aliphatic radical with up to 8 carbon atoms or an optionally substituted phenyl radical, n are prepared by reacting an acyl cyanide of the formula n n R.sup.1 --CO--CN n n with a carboxylic acid anhydride of the formula n n R.sup.2 --CO--O--CO--R.sup.2 n n in the presence of a strong acid, and then adding water to the reaction mixture. The products can be used directly in the synthesis of known herbicides.

专利号:US-4345100-A
优先权日:1980-01-22
标题 :Preparation of α-ketocarboxylic acid N-tert.-butylamides
发明人：BONSE GERHARD; BLANK HEINZ U
权利人:BAYER AG
摘要:A process for the preparation of an α-ketocarboxylic acid N-tert.-butylamide of the formula n n R--CO--CO--NH--C(CH.sub.3).sub.3 n n in which n R is an aliphatic radical with up to 8 carbon atoms, a cycloalkyl radical with 3 to 6 carbon atoms, a phenyl or naphthyl radical or a heterocyclic radical, n comprising reacting an acyl cyanide of the formula n n R--CO--CN n n with tert.-butyl methyl ether of the formula n n (CH.sub.3).sub.3 C--O--CH.sub.3 n n at a temperature between about 0° and 80° C. in the presence of an acid which is capable of activating the ether of formula (III) under the reaction conditions to give a tert.-butyl carbonium ion, and then hydrolyzing the reaction mixture. Advantageously the acyl cyanide is pivaloyl cyanide or benzoyl cyanide and is reacted with an approximately equimolar amount of the ether in the presence of about 1.1 to 1.5 times the molar amount of concentrated sulphuric acid as the activating acid. The products are useful as intermediates in the synthesis of known herbicides.

专利号:US-4360479-A
优先权日:1980-07-04
标题:Process for the preparation of acyl cyanide compounds
发明人：FINDEISEN KURT; KRAETZER HANS; LENTHE MANFRED
权利人:BAYER AG
摘要:This invention relates to a new process for the preparation of acyl cyanides of the general formula n n R.sup.1 --CO--CN (I) n n wherein R 1 is an optionally substituted alkyl radical up to 18 carbon atoms, an optionally substituted cycloalkyl radical with 3 to 12 carbon atoms, an optionally substituted aryl radical or an optionally substituted 5- or 6-membered heterocyclic radical, which can additionally also be fused with a benzene ring, which process comprises reacting a carboxylic acid anhydride of the formula n n R.sup.1 --CO--O--CO--R.sup.1 (II) n n with an alpha-hydroxynitrile of the formula ##STR1## in which R 2 and R 3 are identical or different and represent a hydrogen atom, an optionally substituted alkyl radical with 1 to 18 carbon atoms, an optionally substituted cycloalkyl radical with 3 to 12 carbon atoms, an optionally substituted aryl radical or an optionally substituted 5- or 6-membered heterocyclic radical, which can additionally also be fused with a benzene ring. The acyl cyanides (I) are known compounds and can be used as starting material for the synthesis of herbicides.