中文摘要：

摘要：在微波辐射下，通过色满酮与芳香醛的缩合反应，快速合成了12个新的（E）-3-芳亚甲基色满酮类化合物2a～21．所有化合物结构均经IR，^1HNMR，^13C NMR及元素分析确认．初步的抑菌活性测定结果表明：目标化合物在质量浓度100mg／L下对5种供试的植物病原真菌表现出不同程度的抑菌活性．其中化合物（E）-6-氯一3-（2，4-二氯苯基）亚甲基色满酮2c对梨黑斑病菌抑制活性最强，抑制率为68．2％．

英文摘要：

Twelve new （E）-3-arylidenechroman-4-one compounds 2a-21 were rapidly synthesized via condensation of chroman-4-one and aromatic aldehydes under microwave irradiation. The structures of compounds were confirmed by IR,^1H NMR,^13C NMR and elemental analysis. Antifungal activity test showed that twelve compounds exhibited inhibiting effect against all the tested plant pathogenic fungi at the concentration of 100 mg/L, and compound （E）-6-chloro-3-（2,4-dichloro）-benzylidenechroman-4-one 2c gave special effect on Alternaria alternata with 68.2% inhibitation.