Chitosan oligosaccharide organic acid derivative and preparation and application thereof

The invention belongs to the field of agricultural production and pesticide preparation, and particularly relates to a chitosan oligosaccharide organic acid derivative and preparation and application thereof. The chitosan oligosaccharide organic acid derivative is a compound as shown in a formula I in the specification. The derivative disclosed by the invention has outstanding botrytis cinerea inhibitory activity, the water solubility of the derivative is also obviously improved compared with that of benzoic acid raw materials, and the derivative has a relatively great application value in the agricultural field. And the # imgabs0 # is shown in the formula 1. 本发明属于农业生产、农药制备领域，具体涉及一种壳寡糖有机酸衍生物及其制备和应用。壳寡糖有机酸衍生物为式一所示化合物。本发明衍生物具有突出的灰葡萄孢菌抑制活性，相较于苯甲酸类原料，衍生物的水溶性也有明显提升，在农业领域具有较大应用价值。#imgabs0#式一。