Abstract: The present invention relates to a microbicidal ?-amino acrylic derivative and its preparation method and applications. Based on the principle of pesticide molecular design, the structural reform of the agricultural anti-plant virus activity is carried on lead compounds having the medical anti-coronavirus activity, and a series of ?-amino acrylic derivatives are designed and synthesized, and in particular, ?-amino acrylic derivatives containing piperidine rings are synthesized, and the systematic biological activity screening is carried by using known compounds as positive control compounds, which provide many effective anti-virus leading molecules for the preparation of pesticides, and has positive significance to reduce the pesticide application dosage and protect the environment and ecology.

Abstract: The present invention is that provided a synthesis method of a series of isothiazole oxime ether containing strobilurin derivatives IV. The present invention relates to 3,4-dichloroisothiazolyl oxime ether strobilurin derivatives, and their chemical structural formula is as shown by IV. The invention discloses the structural formula of the above compound, the synthesis method and the use as an insecticide, a fungicide, an anti-plant virus agent, and an agriculturally acceptable auxiliary or synergist and a commercial insecticide. The use of a fungicide, an anti-plant virus agent and an acaricide in combination for controlling agricultural, forestry, horticultural plant pests, diseases, virus diseases and preparation methods.

Abstract: The present invention relates to a microbicidal ?-amino acrylic derivative and its preparation method and applications. Based on the principle of pesticide molecular design, the structural reform of the agricultural anti-plant virus activity is carried on lead compounds having the medical anti-coronavirus activity, and a series of ?-amino acrylic derivatives are designed and synthesized, and in particular, ?-amino acrylic derivatives containing piperidine rings are synthesized, and the systematic biological activity screening is carried by using known compounds as positive control compounds, which provide many effective anti-virus leading molecules for the preparation of pesticides, and has positive significance to reduce the pesticide application dosage and protect the environment and ecology.

Abstract: The present invention is that provided a synthesis method of a series of isothiazole oxime ether-containing strobilurin derivatives IV. The present invention relates to 3,4-dichloroisothiazolyl oxime ether strobilurin derivatives, and their chemical structural formula is as shown by IV. The invention discloses the structural formula of the above compound, the synthesis method and the use as an insecticide, a fungicide, an anti-plant virus agent, and an agriculturally acceptable auxiliary or synergist and a commercial insecticide. The use of a fungicide, an anti-plant virus agent and an acaricide in combination for controlling agricultural, forestry, horticultural plant pests, diseases, virus diseases and preparation methods.

Abstract: A copolymer and preparation method and application thereof are disclosed. The copolymer is random copolymer obtained from monomers consisting of acrylamide, acrylic acid, alkenyl sulfonate, 2-acrylamido-dodecyl sulfonate, p-styrene sulfonate or isoprene sulfonate and so on. The copolymer of present invention can be used as fluid loss additive and has good fluid loss properties, which would not make the drilling fluid thicken at high temperature of 200° C. and high salt conditions of saturated brine. It has a medium-pressure fluid loss after aging and rolling for 16 h at high temperature of 200° C., as measured in accordance with the American Petroleum Institute Standard Test at room temperature, and has good properties of high temperature-resisting and salt-resisting.

Abstract: A copolymer and preparation method and application thereof are disclosed. The copolymer is random copolymer obtained from monomers consisting of acrylamide, acrylic acid, alkenyl sulfonate, 2-acrylamido-dodecyl sulfonate, p-styrene sulfonate or isoprene sulfonate and so on. The copolymer of present invention can be used as fluid loss additive and has good fluid loss properties, which would not make the drilling fluid thicken at high temperature of 200° C. and high salt conditions of saturated brine. It has a medium-pressure fluid loss after aging and rolling for 16 h at high temperature of 200° C., as measured in accordance with the American Petroleum Institute Standard Test at room temperature, and has good properties of high temperature-resisting and salt-resisting.