3062-48-4Relevant articles and documents
Synthesis of new dibenzo-diaza-crown ethers
Gersch, Bernd,Lehn, Jean-Marie,Grell, Ernst
, p. 2213 - 2216 (2007/10/03)
A new method for the synthesis of dibenzo-diaza-crown ethers involving the 1:1-cyclocondensation of α,ω-contrafunctional amines is reported.
Process for making N-(N'-methylenepyrrolidonyl)-2-substituted anilines
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, (2008/06/13)
This invention relates to a process for making N-(N'-methylenepyrrolidonyl)-2-substituted anilines in high yield. The products are useful intermediates in the synthesis of herbicides. The process comprises reacting substantially equivalent molar concentrations of a 2-substituted aniline, as defined herein, with N-methylolpyrrolidone in an aromatic hydrocarbon solvent in the absence of an acid or base catalyst at a reflux temperature of 80°-140° C. while simultaneously and continuously distilling out from the reaction mixture an azeotrope consisting essentially of water and solvent until substantially all the water produced during the reaction has been removed thereby, and, thereafter, crystallizing the product from the remaining solution.
Herbicidal n-(haloacetyl)-n-(n-methylene pyrrolidonyl)-2-oxyalkyleneoxyalkylanilines
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, (2008/06/13)
Herbicidal compounds having the formula: STR1 where n is 1-3, R is alkyl of 1-3 carbon atoms, R' is hydrogen or alkyl of 1-3 carbon atoms, and x is chloro or bromo, are disclosed herein. The compounds of the invention show good herbicidal activity, especi