70385-91-0Relevant academic research and scientific papers
Cyclic acyl amidines as unexpected C4-donors for fully substituted pyridine ring formation in the base mediated reaction with malononitrile
Tkachuk, Volodymyr,Merkulova, Vladyslava,Omelchenko,Arrault, Axelle,Hordiyenko, Olga
supporting information, p. 1959 - 1963 (2019/06/27)
A new one-step, pseudo four-component approach for the synthesis of fully substituted pyridines via ring-opening of the cyclic acyl amidine of 3-amino-1H-isoindol-1-one and its aza-analogues during the reaction with malononitrile in the presence of sodium methoxide, followed by pyridine ring closure is reported. This method allows the one-step preparation of previously unknown 2-(pyridin-4-yl)(hetero)aryl carboxamides in good yields under mild reaction conditions.
Use of diiminoisoindoline derivatives or 3-aminoisoindolone derivatives for dyeing keratin fibers, and dye compositions containing them
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, (2008/06/13)
Diiminoisoindoline derivatives or 3-aminoisoindolone derivatives, or tautomeric forms thereof, used as oxidizing-agent-free dye precursors in dyeing keratin fibers, in particular human keratin fibers such as the hair, without an oxidizing agent, in the presence of compounds containing a primary or secondary amine function; dye compositions containing these compounds and to the dyeing devices and processes used.
