Synthesis of the isomeric dinitro-p-phenylenediamines by nitration of NN′-bis(phenylsulphonyl)-p-phenylenediamine

The anti-cancer, anti-inflammatory and tuberculostatic activities of a series of 6,7-substituted-5,8-quinolinequinones

“…The specificity of the aminolysis reaction, in that Michael addition takes place when ammonia is used as the nucleophile but not the thiolate, follows literature precedent 34 whereby hard nucleophiles, such as amines and alkoxides, predominantly result in displacement of the amine substituent. The large excess of ammonia also ensures complete aminolysis of the alkylamine.…”

Prediction of λmax of 1,4-naphthoquinone derivatives using ant colony optimization

“…Experimental max values of these compounds in ethanol solvent were assembled from previous publications [11,12,25]. The data set was randomly divided in two groups, a calibration set and a prediction set consisting of 30 and 13 compounds, respectively ( Table 1).…”

“…For instance they make the core of K vitamin derivatives, of some antibacterial compounds, and of anti-malarial molecules as well. While natural NQ often present hydroxy or alkoxy substituents [1], many NQ dyes have been synthesized using amino side groups [11][12][13].…”

Chemical Sensing and Detection in Forensic Science

“…Lawsone is a naphthoquinone, which is a class of compounds that are well known for reactivity with amino groups [89][90][91][92][93][94][95][96][97][98][99][100][101]. 1,2-Naphthoquinone-4-sulfonate has been used to determine amino acids through the formation of highly colored compounds [102][103][104][105][106].…”