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1. 发明授权

US3793378A Catalytic process for preparing meta-cresol 失效
标题翻译：用于制备META-CRESOL的催化方法
公开(公告)号：US3793378A
公开(公告)日：1974-02-19
申请号：US3793378D
申请日：1971-04-15
申请人： MONTEDISON SPA
发明人： CASSAR L , FOA M , CHIUSOLI G
IPC分类号： B01J31/26 , B01J31/40 , C07C37/07 , C07C37/11 , C07C37/14 , C07C37/00
CPC分类号： B01J31/20 , B01J23/745 , B01J31/0215 , B01J31/0249 , B01J31/0271 , B01J31/26 , B01J31/403 , B01J2231/324 , B01J2531/847 , C07C37/07 , C07C37/11 , C07C37/14 , Y02P20/584 , C07C39/07
摘要： A NEW CATALYTIC PROCESS FOR PREPARING M-CRESOL FROM METHALLYL CHLORIDE, ACETYLENE AND CARBON OXIDE IS DISCLOSED. THE CATALYST USED IN A SYSTEM PREPARED FROM NICKELTETRACARBONYL, AN ALKALINE IODIDE AND/OR AN ALKALINE BROMIDE, IRON POWDER AND THIOUREA. A NEUTRALIZING AGENT IS ALSO PRESENT. DUE TO THE VARIOUS PURPOSE FOR WHICH IT IS USEFUL, METACRESOL HAS CONSIDERABLE INDUSTRIAL IMPORTANCE. IT CAN BE USED IN THE PREPARATION OF PHENOL/FORMALDEHYDE TYPE RESINS, IN THE PREPARATION OF PLASTICIZERS (TRICRESYLPHOSPHATES), AND IN THE PREPARATION OF ANTIOXIDANTS, ETC.

2. 发明授权

US3733354A Process for the preparation of carboxylated aromatic compounds 失效
标题翻译：制备羧酸芳族化合物的方法
公开(公告)号：US3733354A
公开(公告)日：1973-05-15
申请号：US3733354D
申请日：1970-10-16
申请人： MONTEDISON SPA
发明人： CASSAR L , FOA M
IPC分类号： C07C67/36 , C07C51/00 , C07C51/10 , C07C67/00 , C07C63/00
CPC分类号： C07C51/10 , C07C63/70 , C07C63/06 , C07C63/36 , C07C65/32 , C07C65/21 , C07C63/04
摘要： A PROCESS IS DISCLOSED FOR THE PREPARATION OF CARBOXYLATED AROMATIC COMPOUNDS BY THE REACTION OF SIMPLE OR SUBSTITUTED AROMATIC CHLORIDES, BROMIDES AND IODIDES, WITH CARBON MONOXIDE AND A COMPOUND CONTAINING ACTIVATED HYDROGEN SELECTED FROM THE CLASS CONSISTING OF WATER, ALCOHOLS AND AMINES, AND THE PRESENCE OF NICKEL-TETRACARBONYL, WHEREIN THE REACTION IS CARRIED OUT IN AN ORGANIC SOLVENT MEDIUM HAVING A HIGH DIELECTRIC CONSTANT, IN THE PRESENCE OF A BASIC COMPOUND, UNDER SUBSTANTIALLY AMBIENT PRESSURE, AND AT A TEMPERATURE BETWEEN 20* AND 130*C.

3. 发明授权

US3708529A Process for preparing phenylacetic acid 失效
标题翻译：制备苯乙酸的方法
公开(公告)号：US3708529A
公开(公告)日：1973-01-02
申请号：US3708529D
申请日：1970-07-22
申请人： MONTEDISON SPA
发明人： CASSAR L , FOA M , CHIUSOLI G
IPC分类号： C07C51/10 , C07C63/54
CPC分类号： C07C51/10 , C07C57/32
摘要： PROCESS FOR THE SYNTHESIS OF PHENYLACETIC ACID BY CARBONYLATION OF BENZYL CHLORIDE. THE PROCESS COMPRISES REACTING BENZYL CHLORIDE AND CARBON MONOXIDE UNDER ATMOSPHERIC PRESSURE, AT TEMPERATURES FROM 20* TO 80*C. IN A WATER-METHANOL MEDIUM CONTAINING UP TO 35% WATER, USING A CATALYST MIXTURE CONSISTING OF A COBALT SALT, IN IRON-MANGANESE ALLOY AND A SUPLPHURATED PROMOTING AGENT. CALCIUM OXIDE IS USED AS A NEUTRALIZING AGENT. THE CALCIUM SALT OBTAINED IS TREATED WITH A STRONG MINERAL ACID TO FREE THE PHENYLACETIC ACID.

4. 发明授权

US3708518A Process for preparing esters of the para-diphenyl acetic acid 失效
标题翻译：制备对二苯乙酸的方法
公开(公告)号：US3708518A
公开(公告)日：1973-01-02
申请号：US3708518D
申请日：1970-07-21
申请人： MONTEDISON SPA
发明人： CASSAR L , LOSCO G , SMAI F , CHIUSOLI G , FOA M
IPC分类号： C07C17/32 , C07C69/76
CPC分类号： C07C17/32 , C07C22/04
摘要： A process is disclosed for preparing esters of p-diphenyl-acetic acid of the formula: (WHEREIN R is an alkyl or a fluoroalkyl group having from one to five carbon atoms) starting from diphenyl, and characterized in that in a first step the diphenyl is chloromethylated with CH20 and HCl, in acetic acid as a solvent, and in the presence of sulphuric or phosphoric acid as catalyst, at temperatures between 70* and 120*C and under pressures between 1 and 3 atm., and that in a second step the p-chloromethyl-diphenyl thus obtained is made to react with carbon oxide and an alkanol or a fluoroalkanol, ROH, wherein R has the above indicated meaning, in the presence of a metal-carbonyl as catalyst and of a neutralizing agent at temperatures between 30* and 90*C and under pressures of CO between 0.5 and 2 atm., in order to obtain the desired ester. In the second step, the reaction is carried out in the presence of a solvent selected from the group consisting of the N-dialkyl amides and the alkano-nitriles, and the catalyst is a salt of cobalt hydrocarbonyl HCo(CO)4 or the Ni(CO)4 + I system (and with 2-fluoro-ethanol and a co-solvent in the case of the latter).
摘要翻译：公开了一种制备下式的对二苯基 - 乙酸的酯的方法：

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