| 摘要 |
NEW MATERIAL:The compound of formulaI(R1 is H, methyl, or ethyl; R2 and R3 are 1-4C alkyl or 3-4C alkenyl; n is 1-5). EXAMPLE:S-3-(4-Phenoxy)phenoxypropan-2-yl-N,N-dimethylthiolcarbamate. USE:An insecticidal and miticidal agent. It exhibits excellent effect at a low concentration, and is useful for the control of agricultural, horticultural and forestry vermin, grain vermin, house vermin, etc. PROCESS:The compound of formulaIis prepared by reacting the halide of formula II (A1 is halogen) with the thiolcarbamate salt of formula III (B1 is alkali metal or quaternary ammonium) in a solvent such as water, acetone, tetrahydrofuran, etc. at -30-+100 deg.C. As alternative methods, it can be prepared by the reaction of a thiol haloformate with an amine, or the reaction of a thiol salt with carbamoyl halide, etc. |
