Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1366817 | Bioorganic & Medicinal Chemistry Letters | 2007 | 7 Pages |
Abstract
The 6-(4-alkoxycarbonylalkoxy)phenoxy-3-alkylthio(alkylsulfonyl)-1-phenyl-5-(substituted phenyl)pyrazolo[3,4-d]pyrimidin-4-ones 6 and 7 have been synthesized via the tandem aza-Wittig and annulation reactions of the corresponding iminophosphoranes 4, aromatic isocyanates, and substituted phenols 2 in 52–98% yields. Their structures were clearly verified by spectroscopic data (IR, 1H NMR, 13C NMR, MS, and elemental analysis or X-ray diffraction crystallography). And the results of preliminary bioassay indicated that these title compounds possess potential herbicidal activity against the root of rape and barnyard grass.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Hui Liu, Hong-Qing Wang, Zhao-Jie Liu,