CAS: 34014-18-1; 1-(5-(Tert-Butyl)-1,3,4-Thiadiazol-2-yl)-1,3-Dimethylurea

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CAS号74-89-5 氨基甲烷

2-甲氨基-5-特丁基-1,3,4,-噻二唑 以 甲苯 用作溶剂,化学反应 4.0H,反应生成特丁噻草隆
参考文献:特丁噻草隆原药的工业化生产方法
标题:特丁噻草隆原药的工业化生产方法
摘要:本发明公开了一种特丁噻草隆原药的工业化生产方法,包括:(1)将原料2‑甲氨基‑5‑特丁基‑1,3,4‑噻二唑溶解于惰性溶剂中,配成一定浓度的惰性溶剂溶液;(2)2‑甲氨基‑5‑特丁基‑1,3,4‑噻二唑甲苯溶液与光气或加入二光气或三光气溶液进行光化反应;(3)光化反应结束后的物料,赶除光气;(4)赶除光气后的物料与一甲胺气体进行酰胺化反应;(5)酰胺化反应结束后的物料经后处理,得到产品特丁噻草隆.本发明产品质量更为稳定.减少了装置投资,提高了装置生产能力,工艺流程更简捷,利于装置连续自控操作.

专利信息

专利号:US-4412079-A
优先权日:1968-03-13
标题:Thiadiazole compounds and methods of using said compounds in agriculture
发明人：CEBALO TONY; WALDE ROBERT A
权利人:AIR PROD & CHEM
摘要:Novel thiadiazole compounds are disclosed which contain in the 5 position, C-linked moieties which are either acyclic hydrocarbon radicals or halogenated acyclic hydrocarbon radicals (in which case each halogen is independently selected from F, Cl and Br). These novel compounds also contain an exocyclic nitrogen in the 2 position, and some of them contain the exocyclic substituent: wherein R3 is a lower acyclic hydrocarbon radical and R4 is either H or a lower acyclic hydrocarbon radical. Synthesis of these compounds is disclosed, including synthesis of those which exhibit isomerism and/or tautomerism. Various of these compounds have various agricultural utilities (e.g. as herbicides, insecticides, acaricides and fungicides), each of them having at least one such biological utility. Methods of using these compounds in phytotoxic fungicidal, acaricidal and insecticidal applications are disclosed.

专利号:US-2024408567-A1
优先权日:2023-06-09
标 题:Synthesis of porous carbon-based materials from expanded polystyrene
发明人：SAHA DIPENDU; GRAPPE HIPPOLYTE A
权利人:Eco Carbon LLC
摘要:A process for synthesizing a carbon molecular sieve and an activated carbon from expanded polystyrene is provided. The process includes sulfonating the expanded polystyrene with sulfuric acid in the presence of a solvent, for example, chloroform, to obtain sulfonated polystyrene; carbonizing the sulfonated polystyrene to obtain a carbon molecular sieve (CMS) with a substantially high degree of porosity; and activating the CMS by adding an activating agent to the CMS to obtain an activated carbon with a substantially high degree of porosity. The activating agent is selected from one or more of steam, potassium hydroxide, carbon dioxide, zinc chloride, phosphoric acid, sodium carbonate, aluminum chloride, magnesium chloride, and sodium hydroxide. A low temperature of, for example, about 50 degrees Celsius, is employed for sulfonating the expanded polystyrene. Heating and cooling operations in the steps of synthesizing and activating the CMS are performed under a nitrogen gas atmosphere.

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-2024408568-A1
优先权日:2023-06-09
标 题:Synthesis of porous carbon-based materials from Expanded Polystyrene (EPS) or Styrofoam
发明人：SAHA DIPENDU; GRAPPE HIPPOLYTE A
权利人:Eco Carbon LLC
摘要:A process for synthesizing a carbon molecular sieve and an activated carbon from expanded polystyrene is provided. The process includes sulfonating the expanded polystyrene with sulfuric acid in the presence of chlorobenzene, to obtain sulfonated polystyrene; carbonizing the sulfonated polystyrene to obtain a carbon molecular sieve (CMS) with a substantially high degree of porosity, and activating the CMS by an activating agent to obtain activated carbon. A low temperature of, for example, about 50 degrees Celsius, is employed for sulfonating the expanded polystyrene. Heating and cooling operations in the steps of synthesizing the CMS are performed under a nitrogen gas atmosphere.

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:EP-0339964-B1
优先权日:1988-04-27
标 题:Improved synthesis of 4-methyl-3-thiosemicarbazide
发明人：ACHGILL RALPH KENNETH; CALL LAURENCE WESLEY
权利人:DOWELANCO
摘要:An improved method for preparing 4-methyl-3-thiosemicarbazide, an intermediate of value in preparing certain herbicides, by reacting a methyldithiocarbamate quaternary ammonium salt of formula: CH3NH- @-NHNH2 which comprises reacting a methyldithiocarbamate quaternary ammonium salt of Formula (I): wherein R is C1-C4 alkyl, with hydrazine. i