发明名称 |
PROCEDIMIENTO DE PREPARACION DE ACIDOS PERHALOGENOMETANOSULFINICOS Y SULFONICOS Y SUS SALES. |
摘要 |
1. A process for the preparation of perhalomethanesulphinic acid salts of general formula (I) [X1 X2 FC - SO2 ]3-n M in which X1 and X2 represent an identical or different halogen atom chosen from F, Cl and Br, M represents an alkali metal or alkaline-earth metal, n is equal to 1 or 2 depending on the valency state of the metal M, characterized in that an alkali metal or alkaline-earth metal dithionite of general formula Mn (S2 O4 ) (II) in which n and M have the above meaning, or a hydroxymethanesulphinate is brought into contact with a perhalomethane in a polar solvent. |
申请公布号 |
ES2011055(B3) |
申请公布日期 |
1989.12.16 |
申请号 |
ES19870420020T |
申请日期 |
1987.01.21 |
申请人 |
RHONE-POULENC CHIMIE |
发明人 |
WAKSELMAN, CLAUDE;LANGLOIS, BERNARD;TORDEUX, MARC |
分类号 |
C07C309/06;C07C67/00;C07C301/00;C07C303/32;C07C313/00;C07C313/04 |
主分类号 |
C07C309/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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