Synthesis of novel herbicidal sulfonylureas
โ Scribed by Yang Guang-Fu; Yang Hua-Zheng
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 260 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0256-7660
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๐ SIMILAR VOLUMES
Vapor pressure values for agricultural chemicals are necessary for estimating volatilization and dissipation through transport in the vapor phase. The low vapor pressures of the sulfonylurea herbicides have presented signiยฎcant challenges in vapor pressure determination. We have used the Knudsen gas
## Abstract Sulfonylurea herbicides have been studied using negativeโion desorption chemical ionization (DCI) mass spectrometry (MS) and DCIโMS/MS techniques. Both [M ๏ฃฟ H]^โ^ and M^โยท^ ions were observed in the DCI mass spectra. The collisionally activated dissociation (CAD) spectra were characteri
## Abstract A series of novel phosphonodipeptides has been synthesized from diphenyl ฮฑโaminoalkylphosphonates and NโchloroacetylโNโalkyl (or aryl)glycine ethyl esters. The structures of all the compounds prepared were proved by ^1^H NMR, IR, MS, and elemental analyses. The bioassay tests showed tha
Pseudo-first-order rate constants (k obs ) for hydrolysis of a sulfonylurea herbicide, azimsulfuron, AZIM, {N-[[(4,6-dimethoxy-2-pyrimidinyl) ] 2 within the [NaOH] range of 0.1-2.0 M at different temperatures ranging from 40 to 55ะC. The contribution of โฃ 3 [ ฯช OH] 2 term is small compared with โฃ 2