C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/351, 260/304
C07D 319/08 (2006.01)
Patent
CA 1086744
ABSTRACT OF THE DISCLOSURE Processes for the manufacture of benzo [1,3] dioxin derivatives of the formula:-- Image wherein X and Y are each a 2,2,2-trichloroethylidene radical or a dichlorovinylidene radical; and R1 - R4 are variously selected from hydrogen, chlorine amino, nitro, acetamido, ammonium sulphonato, carbamoyl, carboxy, chloroformyl, cyano,ethoxy carbonyl, phenylsulphamoyl, sulphamoyl, sulpho or 2,2,2-trichloro-1-hydroxy- ethylcarbamoyl. The benzo [1,3] dioxin derivatives are of use in animal husbandry to improve animal rate of growth or feed efficiency.
334035
Boyle Francis T.
Davies Alan
Imperial Chemical Industries Limited
Roussin Bernard F.
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