专利号:WO-2009018504-A1 优先权日:2007-08-01 标题 :Process for the synthesis of diaminopyridine and related compounds 发明人:RITTER JOACHIM C 权利人:DU PONT; RITTER JOACHIM C 摘要:A process is provided for the synthesis of a diaminopyridine, such as 2,6-diaminopyridine and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a chlorine-ammonia displacement in the presence of a copper source.
专利号:US-3772389-A 优先权日:1971-06-24 标 题:Process for the synthesis of phenyl esters 发明人:LOWRANCE W 权利人:EASTMAN KODAK CO 摘要:A PROCESS FOR THE SYNTHESIS OF PHENYL ESTERS DIRECTLY FROM THE CORRESPONDING PHENOLS AND CARBOXYLIC ACIDS WHICH COMPRISES CONTACTING A PHENOLIC COMPOUND HAVING AT LEAST ONE HYDROGEN ATOM ADJACENT THE ACTIVE HYDROXYL GROUP WITH A CARBOXYLIC ACID COMPOUND CONTAINING AT LEAST ONE ACTIVE CARBOXYLIC GROUP IN THE PRESENCE OF A CATALYTIC AMOUNT OF A BORATE-SULFURIC ACID CATALYST COMPLEX. THE PROCESS IS CARRIED OUT IN A SINGLE STAGE REACTOR WHICH MAY BE OPERATED AT FROM 75*C. TO 285*C. UNDER ATMOSPHERIC, SUBATMOSPHERIC OR SUPERATMOSPHERIC PRESSURE. IF DESIRABLE, A SOLVENT CAN BE EMPLOYED.
专利号:US-2024239924-A1 优先权日:2021-04-30 标题:Synthesis of sulfonyl halide terminated polyethylene 发明人:BROONER RACHEL E M; SENECAL TODD D; KEAN ZACHARY S 权利人:DOW GLOBAL TECHNOLOGIES LLC 摘要:Methods for preparing end-functionalized polyolefin, The methods include polymerizing one or more olefin monomers in the presence of an aluminum chain transfer agent to produce a polymeryl aluminum species; treating the polymeryl aluminum species with sulfur oxide compound at a reactor temperature to form a polymeryl sulfinate; and oxidizing the polymeryl sulfinate; wherein the end-functionalized polyolefin comprises a polymer backbone having at least 30 carbon atoms; and the end-functionalized polyolefin comprises a sulfur containing group,
专利号:US-3939191-A 优先权日:1972-07-24 标 题:Process for methanol synthesis 发明人:ASANO SETUNOBU; NAKAMURA TADASI 权利人:MITSUBISHI GAS CHEMICAL CO 摘要:Catalyst comprising oxides of copper, zinc and boron in an atomic ratio of copper: zinc: boron of 20 to 70: 15 to 50: 0.3 to 5.3 is used for methanol synthesis from hydrogen and carbon oxides at a reaction pressure of 20 to 500 kg/cm 2 , reaction temperature of 150° to 350°C and space velocity of 2,000 to 5 × 10 4 hr.sup. -1 . n The catalyst has a higher catalytic efficiency, and improved heat resistance and durability.
专利号:WO-2009018502-A2 优先权日:2007-08-01 标 题:Process for the synthesis of diaminopyridine and related compounds
专利号:CN-115485267-A 优先权日:2020-05-06 标题 :Synthesis of vinylcyclobutyl intermediates