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    • 2. 发明授权
    • Producing benzophenone and related products
    • 生产二苯甲酮及相关产品
    • US3899537A
    • 1975-08-12
    • US27103172
    • 1972-07-12
    • PHILLIPS PETROLEUM CO
    • HOLTZ HANS D
    • C07C45/36C07C45/54C07C45/67C07C49/76C07C45/04
    • C07C45/54C07C45/36C07C45/67C07C49/786C07C47/565
    • A stilbene, e.g., cis- and/or trans-stilbene or a substituted stilbene, is oxidized at an elevated temperature to produce benzophenone and a related product. Diphenylacetaldehyde, also produced, can be converted under the conditions of the invention to produce additional benzophenone. The reaction is effected at a temperature in the approximate range 50*-600*F, preferably 200*-400*F under a pressure of oxygen of from about 1 to 500 psig, preferably 20 to about 200 psig. A solvent, e.g., a carboxylic acid for example acetic acid or a halogenated compound for example chlorobenzene is employed. Also, a catalyst, e.g., trifluoroacetic acid and/or trichloroacetic acid can be employed. Further a cocatalyst which is an organic compound of a transition metal, e.g., cobalt acetylacetonate or vanadium naphthenate can also be employed. New compounds, e.g., hydrobenzoin monotrifluoroacetate, hydrobenzoin bistrifluoroacetate, benzoin trifluoroacetate are produced by the process of the invention.
    • 二苯乙烯,例如顺式和/或反式二苯乙烯或取代的1,2-二苯乙烯,在升高的温度下被氧化,产生二苯甲酮和相关产物。 也可以在本发明的条件下转化也产生的二苯基乙醛以产生额外的二苯甲酮。