| 摘要 |
<p>1,137,647. Trifluoroacetyl chloride. FARBWERKE HOECHST A.G. 1 Aug., 1966 [13 Aug., 1965], No. 34376/66. Heading C2C. Trifluoroacetyl chloride is prepared by reacting 1,4 - hexafluoro - 2,3 - dichloro - butene - 2, CF 3 CCl: CClCF 3 , with at least one mole of oxygen per mole of 1,4-hexafluoro-2,3-dichlorobutene-2 while irradiating with ultra-violet light. The reaction is preferably conducted at temperatures of - 20‹ to 70‹ C. under atmospheric pressure: with raised pressure higher temperatures may be used.</p> |
