| 摘要 |
NEW MATERIAL:A pyridine of formula I [X is halogen, trifluoromethyl, nitro; Y is H, amino which may substituted with halogen, phenyl which may be substituted, pyridyl which may be substituted; Z is carbonyl thiocarbonyl, formula II, formula III (Q, Q2 are O, S, -NH-; R1, R2 are H, alkyl); n is integer of 0-2]. EXAMPLE:3-[2-(2,4-Dichloro-alpha-methylenebenzyl)-1,3-dioxolan-2-yl-]p yridine. USE:An agent for controlling pests. PREPARATION:For example, the reaction of a compound of formula IV (Z1 is carbonyl, thiocarbonyl) with another compound of formula V is carried out in an organic solvent in the presence of an acid catalyst to give a compound of formula I where Z is formula II and formula III. |
