## Abstract A series of pyrimidinyl benzylamine analogues containing a phosphonyl group (**2**) was synthesized via the Mannichโtype reactions of 2โ(4,6โdimethoxypyrimidinโ2โyloxy)benzoaldehyde **1**, aromatic amines, and dialkyl phosphites or triphenyl phosphite in the presence of Mg(ClO~4~)~2~. T
Synthesis, crystal structure and herbicidal activity of mimics of intermediates of the KARI reaction
โ Scribed by Bao-Lei Wang; Ronald G Duggleby; Zheng-Ming Li; Jian-Guo Wang; Yong-Hong Li; Su-Hua Wang; Hai-Bin Song
- Book ID
- 105359609
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 122 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1526-498X
- DOI
- 10.1002/ps.972
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โฆ Synopsis
Abstract
Two mimics of the intermediate in the reaction catalyzed by ketolโacid reductoisomerase (KARI) were synthesized. Their structures were established on the basis of elemental analyses, IR, ^1^H NMR and GC/mass detector. The crystal structure of compound 2 was found to be a substituted dioxane, formed by the condensation of two molecules. The two compounds showed some herbicidal activity on the basis of tests using rape root and barnyard grass growth inhibition. However, the herbicidal effect was weaker in greenhouse tests. Copyright ยฉ 2004 Society of Chemical Industry
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## Abstract magnified image The several novel 3โsubstituted phenyl isoxazole derivatives were prepared from substituted phenylโbutanโ1,3โdione. Their structures were confirmed by element analysis, IR, MS, and ^1^H NMR. Xโray structure analysis indicated that the dihedral angles of the phenyl ring w