发明名称 Alpha chlorination process employing antioxidants
摘要 The present invention relates to improved processes for selectively chlorinating acyl compounds at the alpha or 2-position. The process of the present invention comprises a method of producing alpha-chloro acyl chlorides comprising contacting an acyl chloride with a chlorine source at a temperature of about 75 DEG C. to about 125 DEG C. in the presence of (i) an effective amount of an auxiliary acidic agent and (ii) an effective amount of a food grade antioxidant and optionally (iii) an effective amount of oxygen or air.
申请公布号 US4938898(A) 申请公布日期 1990.07.03
申请号 US19840625922 申请日期 1984.06.29
申请人 THE PROCTER & GAMBLE COMPANY 发明人 THOMPSON, JAMES E.
分类号 C07C51/62 主分类号 C07C51/62
代理机构 代理人
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