摘要:

Nineteen Baylis-Hillman adducts(BH)were synthesized at room temperature using trimethylamine or 1，4-diaza-bicyclo[2.2.2]octane(DABCO)as catalyst.Biological activity evaluations showed that methyl 2-((2，4-dichlorophenyl)(hydroxy)methyl)acrylate(BH-7)exhibited broadspectrum herbicidal activity，with 100%control of broadleaved weeds Zinnia elegans Jacq.(YOA)and Abutilon theophrasti Medic(VEL)，80%and 75%control of grass weeds Echinochloa crusgalli(L.)Baeuv(BYG)and Digitaria sanguinalis(L.)Scop(CRG)at 2000 g ai/ha respectively.3-(hydroxy(4-nitrophenyl)methyl)but-3-en-2-one(BH-18)exhibi ted efficient fungicidal activity，with 100%control of Phytophthora infestans，50%and 50%control of Sclerophthoramacrospora thirumctal(RB)and bocrytis Cinerea Pers(CGM)at 25 g a.i./ha.以三甲胺、1，4-重氮二环[2，2，2]辛烷(DABCO)为催化剂，室温合成了19个Baylis-Hillman加成物(BH)，生物活性测试发现 :在2 000 g a.i./ha的剂量下,2-((2,4-二氯苯基)(羟基)甲基)丙烯酸甲酯(BH-7)具有较为广谱的除草活性,对阔叶杂草百日草和苘麻的防效达到1 00%;对禾本科杂草稗草和马唐的防效分别为80%和75%;在25 g a.i./ha的剂量下3-(羟基(4-硝基苯基)甲基)丁-3-烯-2-酮(BH-18)对番茄晚疫病的防效为100%，对稻瘟病及蔬菜灰霉病的防效均 为50%。

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