A bis-urea compound of general formula (IV):
The compound is useful as a thermo-thickening agent in a non-polar liquid such as engine lubricating oil or thermosetting varnish. Also, a method for preparing the thermo-thickening compound. Further, a composition comprising the thermo-thickening compound and a non-polar liquid.
N-Phenyl-substituted N-heterocyclic compounds, their preparation and use
申请人:Ciba-Geigy Corporation
公开号:US04208202A1
公开(公告)日:1980-06-17
The present invention relates to novel active compounds having a plant growth-inhibiting and herbicidal action and their preparation and to agents containing these active ingredients, and their use. The novel active compounds are saturated and unsaturated 4-membered to 7-membered ring nitrogen heterocyclic compounds which are substituted on the nitrogen atom by a phenyl radical which itself carries a trifluoromethanesulphonamido group --NH--SO.sub.2 --CF.sub.3 as a substituent. The phenyl radical can also carry other substituents and the heterocyclic structure can also be substituted. Oxo derivatives of the heterocyclic compound, in which the oxo group is preferably adjacent to the nitrogen atom, form a preferred sub-group of compounds.
Novel N-phenyl-substituted N-heterocyclic compounds, their preparation
申请人:Ciba-Geigy Corporation
公开号:US04394156A1
公开(公告)日:1983-07-19
The present invention relates to novel active compounds having a plant growth-inhibiting and herbicidal action and their preparation and to agents containing these active ingredients, and their use. The novel active compounds are saturated and unsaturated 4-membered to 7-membered ring nitrogen heterocyclic compounds which are substituted on the nitrogen atom by a phenyl radical which itself carries a trifluoromethanesulphonamido group -NH-SO.sub.2 -CF.sub.3 as a substituent. The phenyl radical can also carry other substituents and the heterocyclic structure can also be substituted. Oxo derivatives of the heterocyclic compound, in which the oxo group is preferably adjacent to the nitrogen atom, form a preferred sub-group of compounds.
THE PREPARATION OF AMINES AND HYDRAZO COMPOUNDS USING HYDRAZINE AND PALLADIZED CHARCOAL
作者:P. M. G. Bavin
DOI:10.1139/v58-032
日期:1958.1.1
The reduction of nitro compounds to amines by ethanolic hydrazine and palladized charcoal probably proceeds through the nitroso and hydroxylamine derivatives. This reagent is shown to be useful for the reduction of azo to hydrazo compounds.
Design and Synthesis of Urea-Linked Aromatic Oligomers-A Route Towards Convoluted Foldamers
作者:James J. Mousseau、Liyan Xing、Nathalie Tang、Louis A. Cuccia
DOI:10.1002/chem.200901094
日期:2009.10.5
Herein we report the design and synthesis of crescent‐shaped and helical urea‐based foldamers, the curvature of which is controlled by varying the constituent building blocks and their connectivity. These oligomers are comprised of two, three or five alternating aromatic heterocycles (pyridazine, pyrimidine or pyrazine) and methyl‐substituted aromatic carbocycles (tolyl, o‐xylyl or m‐xylyl) connected