Trifluoro- and chlorodifluoromethoxypyrimidines and the...

C - Chemistry – Metallurgy – 07 – D

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C07D 239/46 (2006.01) C07D 239/34 (2006.01) C07D 239/48 (2006.01) C07D 239/545 (2006.01)

Patent

CA 2037733

Substituted trifluoro- and chlorodifluoromethoxypyrimidines of the formula (I): (see formula I) where R1, R2 and R3 are each, independently of one another, hydrogen, halogen or haloalkyl, and R1 and/or R2 are also trifluoromethoxy or chlorodifluoromethoxy, and n is 0 or 1, are prepared as described. These compounds are useful as intermediates for preparing organic compounds, and especially for preparing herbicidal sulfonylureas.

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