Synthesis and Bioactivity of (E)-2-Benzylidenimino-4-(7-methoxy-2,2-dimethyl-2,3-dihydrobenzofuran-5-yl)thiazole

被引:14
作者
Shen, Fang [1 ]
Hu, Aixi [1 ]
Luo, Xianfu [1 ]
Ye, Jiao [1 ]
Ou, Xiaoming [2 ]
机构
[1] Hunan Univ, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China
[2] Hunan Res Inst Chem Ind, Changsha 410007, Hunan, Peoples R China
关键词
(E)-2-benzylidenimino-4-(7-methoxy-2,2-dimethyl-2,3-dihydrobenzofuran-5-yl)thiazole; synthesis; insecticidal activity; fungicidal activity; herbicidal activity; BIOLOGICAL-ACTIVITY; CARBOFURAN;
D O I
10.6023/cjoc1108151
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Sixteen (E)-2-benzylidenimino-4-(7-methoxy-2,2-dimethyl-2,3-dihydrobenzofuran-5-yl)thiazoles were synthesized from 2,3-dihydro-2,2-dimethyl-7-benzofuranol by etherification, Friedel-Crafts acylation, alpha-bromation, cyclization of thiazole and imidization. Their structures were clearly established by H-1 NMR, MS spectra and elemental analysis. The preliminary bioassays indicated that compounds 2a and 21 exhibited insecticidal activity against T. urticae were 53.10% and 67.71% at 500 mg/L. Compounds 2a and 2k exhibited fungicidal activity against S. sclerotiorum were 57.9% and 59.8% at 25 mg/L. Compound 21 showed different degrees of herbicidal activity against A. theophrasti, A. spinosus L and C. album at 2250 g.ai/ha.
引用
收藏
页码:388 / 392
页数:5
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