33224-18-9Relevant articles and documents
Corresponding amine nitrile and method of manufacturing thereof
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, (2018/05/24)
The present invention relates to a nitrile manufacturing method, which has characteristics of significantly-reduced ammonia source consumption, low environmental pressure, low energy consumption, low production cost, high nitrile purity, high nitrile yield and the like compared with the method in the prior art, wherein nitrile having a complicated structure can be obtained through the method. The present invention further relates to a method for producing a corresponding amine from the nitrile.
Corresponding amine nitrile and method of manufacturing thereof (by machine translation)
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Paragraph 0134; 0137-0139, (2017/10/22)
The invention relates to a method of manufacturing one kind of nitrile, compared with the prior art, has significantly reduced the amount of ammonia, the environmental pressure of the small, low energy consumption, low production cost, nitrile product purity and yield and the like, and can obtain more complex structure of the nitriles. The invention also relates to the corresponding amine by the nitrile manufacture method. (by machine translation)
Synthesis and photophysical properties of 2,6-dicyano-p-phenylenediamine
Zahid, Muhammad,Rosspeintner, Arnulf,Angulo, Gonzalo,Grampp, Günter,Jacques, Patrice,Mansha, Asim
, p. 54 - 63 (2012/02/01)
The photophysical and electrochemical properties of p-phenylenediamine (PPD) are strongly affected by the addition of cyano groups to the aromatic ring. In 2,3,5,6-tetracyano-p-phenylenediamine (TCPPD) the photophysics is governed mostly by the solvent basicity (β) whereas in 2,6-dicyano-N,N, N′,N′-tetramethyl-p-phenylenediamine (DCTMPPD) by the solvent polarity/polarizability (π*). In order to study the interactions of cyano-substituted PPDs with the solvent molecules in more detail as well as to clarify the role and origin of hydrogen bonding differences for TCPPD and DCTMPPD, another cyano substituted PPD, 2,6-dicyano-p-phenylenediamine (DCPPD) has been synthesized. The photophysical properties have been measured in a wide range of solvents. The fluorescence lifetimes (from 14 ns to 20 ns) and quantum yields (from 0.7 to 0.85) are not very sensitive to the environment. The solvatochromism is analyzed by a linear solvation energy relationship (LSER) using parameters developed by Kamlet, Taft and co-workers. It has been found that both absorption and emission of DCPPD depend on specific as well as non-specific interactions of the solute with the solvent molecules. The ground and excited state pKa values for DCPPD have also been determined.