Month: July 2024

Stereospecific addition of H to fumaric acid in irradiated single crystals of succinic acid was written by Miyagawa, Ichiro;Itoh, Koichi. And the article was included in Nature (London, United Kingdom) in 1966.Quality Control of 4-(Benzylamino)benzonitrile This article mentions the following:

Mixtures of succinic acid and fumaric acid grown in both aqueous solution and in heavy H₂O were irradiated. In crystals grown from aqueous solution, only the primary species (DO₂CCH_{灏?/sub>H灏?.CH浼?/sub>CO2D) was detected. In the D-substituted crystal, which contained more than 0.0001 mole fraction of fumaric acid, the the DO2CCD灏?/sub>H灏?CHCO2D species was detected in addition to the primary species. When 2,3-dideuterofumaric acid was used, the absorption from DO2CCD2CDCO2D replaced this absorption. Thus, it was concluded that the radical DO2CCD灏?/sub>H灏?CHCO2D was formed by the addition of H (deuterium) to fumaric acid. The concentration of DO2CCD灏?/sub>H灏?CHCO2D increased with increasing concentration of fumaric acid in the crystal until the latter concentration became about 0.01 mole fraction. For the crystal in which the concentration of fumaric acid was higher than 0.01, the ratio [DO2CCD灏?/sub>H灏?CHCO2D]/[DO2CCH2CHCO2D] was found to be about 0.65. From the signal-to-noise ratio of the absorption pattern of the crystal, the ratio [DO2CCH灏?/sub>D灏?CHCO2D)]/[DO2CCD灏?/sub>H灏?CHCO2D] was found to be less than 1:300. Fumaric acid was the only compound from which a radical was formed with the use of an irradiated crystal of succinic acid. The other compounds examined (inactive compounds), which are more or less similar to fumaric acid in structure, were maleic acid, oxalic acid, crotonic acid, acrylic acid, tartaric acid and (鍗?-aspartic acid. In the experiment, the researchers used many compounds, for example, 4-(Benzylamino)benzonitrile (cas: 10282-32-3Quality Control of 4-(Benzylamino)benzonitrile).}

4-(Benzylamino)benzonitrile (cas: 10282-32-3) belongs to nitriles. Nitrile carbon shifts are in the range of 115閳?25 ppm whereas in isonitriles the shifts are around 155閳?65 ppm. In conventional organic reductions, nitrile is reduced by treatment with lithium aluminium hydride to the amine. Reduction to the imine followed by hydrolysis to the aldehyde takes place in the Stephen aldehyde synthesis, which uses stannous chloride in acid.Quality Control of 4-(Benzylamino)benzonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Studying of porous polymer surface properties changes by energetic heterogeneity function was written by Guskov, V. Yu.;Ganieva, A. G.;Kudasheva, F. Kh.. And the article was included in Sorbtsionnye i Khromatograficheskie Protsessy in 2014.Computed Properties of C9H12N4 This article mentions the following:

In present work we try to detect changes on styrene-divinylbenzene microporous polymer surface by adsorption energy distribution function (heterogeneity function, 锠?. Polymer surface was modified by 0.1-10⁴ ppm of polyethylene glycol, polyethylene glycol adipate and tripropionitrilamine. Heterogeneity function was calculated from the inverse gas chromatog. data. It was determined that function 锠?was capable to detect surface properties variations only at 10³ ppm and above modifier impregnation. If one use the first derivative of 锠? it allows detecting surface properties changes after 0.1-1 ppm modifier impregnation. In the experiment, the researchers used many compounds, for example, 3,3′,3”-Nitrilotripropanenitrile (cas: 7528-78-1Computed Properties of C9H12N4).

3,3′,3”-Nitrilotripropanenitrile (cas: 7528-78-1) belongs to nitriles. Nitrile compounds can be prepared by the incorporation of a cyanide source through C閳ユ弲 bond formation or by dehydration of primary carboxamides. Nitriles are susceptible to hydrogenation over diverse metal catalysts. The reaction can afford either the primary amine (RCH2NH2) or the tertiary amine ((RCH2)3N), depending on conditions.Computed Properties of C9H12N4

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts