TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (disclosed): Compound (I) is prepared by cross-coupling a pyridine derivative of formula (II) and organic hydrogen containing compound of formula R2W1H or organic sodium or potassium containing compound of formula R2W1M1 in the presence of a base and a palladium, nickel or copper catalyst.M1=Na or K;andLg=leaving group. Preferred Definitions:    R1=H or 1-2C alkyl;    W1, Y1=direct bond;    R2=Ph ring optionally substituted with up to 3 substituents from R6;    R3=1-6C alkyl, 2-6C alkenyl, 1-6C haloalkyl, 2-6C cyanoalkyl, 1-6C hydroxyalkyl, or Ph ring optionally substituted with up to 3 substituents from R6;    R4=H;    R5=halo or OMe;    -R6=Cl or OMe;    R6a=1-6C alkyl;and    m=0-3.    ACTIVITY - Fungicide. A 3% suspension with compound (I) and acetone was added purified water and Trem(RTM: polyhydric alcohol esters surfactant), and sprayed off on test wheat seedlings at a rate of 500 g/hectare. The seedlings were inoculated with spore dust of Erysiphe graminis, incubated at 20 degrees C for 8 days, and inspected. Results showed a 100% disease control.    MECHANISM OF ACTION - None given.    SPECIFIC COMPOUNDS - 8 Compounds (I) are specifically claimed, e.g. 4-(3,5-dimethoxyphenyl)-6-methyl-5-(2,4,6-trifluorophenyl)-3-pyridineacetonitrile (Ia); 4-(3,5-dimethoxyphenyl)-5-(2-fluorophenyl)-2-methyl-3-(2,4,6-trifluorophenyl)pyridine; 5-(2,6-difluoro-4-methoxyphenyl)-4-(3,5-dimethoxyphenyl)- alpha , alpha ,6-trimethyl-3-pyridinemethanol; 5-(chloromethyl)-4-(3,5-dimethoxyphenyl)-2-methyl-3-(2,4,6-trifluorophenyl)pyridine; or 4-(3,5-dimethoxyphenyl)-2-methyl-5-phenyl-3-(2,4,6-trifluorophenyl)pyridine.    EXAMPLE - A mixture (g) of ethyl 4-chloro-5-(4-fluorophenyl)-6-methyl-3-pyridinecarboxylate (1.5), 2-(3,5-dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2.42), potassium phosphate (2.43), palladium acetate (0.047) and 2-dicyclohexylphosphino-2',6'-dimethoxybiphenyl (2.1) was heated at 125 degrees C for 1 hour, cooled, added with dichloromethane to obtain layers, and separated. The separated organic layer was washed with water, concentrated under reduced pressure, and purified to obtain (Ia).