2-trifluoromethyl-4,6-dinitro-phenol and derivatives thereof, process
申请人:Budapesti Vegyimuvek
公开号:US04596893A1
公开(公告)日:1986-06-24
The present invention relates to 2-trifluoro-methyl-4,6-dinitro-phenol and derivatives thereof prepared by hydrolyzing 2-chloro-3,5-dinitrobenzotrifluoride with an alkali hydroxide or alkaline earth metal hydroxide at elevated temperature in an aqueous medium without catalyst, 2-trifluoro-methyl-4,6-dinitro-phenol show herbicidal, acaricidal and crop regulating properties.
o-Nitroaniline Derivatives - 13 reactions of N-(o-nitroaryl)sarcosine esters with bases
作者:Pamela A. Collins、Michael D. McFarlane、Raymond K. Mackie、David M. Smith
DOI:10.1016/s0040-4020(01)80466-x
日期:1992.1
The title reactions give 1-hydroxy-4-methylquinoxaline-2,3-diones (4) together with a variety of mono- and bi-cyclic by-products All of these may result from a common intermediate, viz. a 1-hydroxy-4-methyl-3,4-dihydro-1H-2,1,4-benzoxadiazine-3-carboxylate ester (18).
Multi-element Standard for Nuclear Magnetic Resonance Spectroscopy
申请人:Diehl Bernd Willi Karl-Heinz
公开号:US20150077104A1
公开(公告)日:2015-03-19
Organic compounds which contain nitrogen, fluorine, and phosphorus atoms together with carbon atoms and hydrogen atoms and which can be used as a multi-element standard for
1
H—,
13
C—,
15
N—,
19
F—, and
31
P nuclear magnetic resonance spectroscopy. Also, a nuclear magnetic resonance spectroscopy method, preferably a quantitative nuclear magnetic resonance spectroscopy method, using said compounds and a method for qualitatively and/or quantitatively determining an analyte using such a nuclear magnetic resonance spectroscopy method.