116407-32-0Relevant articles and documents
Preparation method and application of trans-cyclohexanediamine tartrate
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Paragraph 0020-0030, (2019/02/26)
The invention provides a preparation method of trans-cyclohexanediamine tartrate. The preparation method comprises the steps of charging, dropwise adding of trans-cyclohexanediamine, dropwise adding of glacial acetic acid, heat-insulation reaction and cooling. The invention further provides application of the trans-cyclohexanediamine tartrate in preparation of a schiff base metallic cobalt complex. The specific rotation of the prepared trans-cyclohexanediamine tartrate is minus 11 degrees to minus 13 degrees, the content is greater than or equal to 98.0%, and the appearance of the trans-cyclohexanediamine tartrate is off-white or light yellow crystal. The yield of the prepared trans-cyclohexanediamine tartrate is 55.8-56%; and reaction conditions are mild, and the preparation method is simple to operate, is carried out under normal pressure, and is high in safety.
Instantaneous low temperature gelation by a multicomponent organogelator liquid system based on ammonium salts
Velázquez, Daniel García,Díaz, David Díaz,Ravelo, ángel Gutiérrez,Tellado, José Juan Marrero
supporting information; experimental part, p. 7967 - 7973 (2009/02/02)
A new synergistic multicomponent organogelator liquid system (MOGLS) was discovered during the standard protocol of tartaric acid-mediated racemic resolution of (±)-trans-1,2-diaminocyclohexane. The MOGLS is formed by a 0.126 M methanolic solution of (1R,2R)-(+)-1,2-diaminocyclohexane L-tartrate and 1 equiv of concentrated hydrochloric acid. Nonreversible gelation of oxygenated and nitrogenated solvents occurs efficiently at low temperature. Several features make this system unique: (1) it is a multicomponent solution where each of the five components is required for the organogelation property; (2) the multicomponent organogelator liquid system (MOGLS) is formed by simple, small, and commercially available chiral building blocks dissolved in a well-defined solvent system (MeOH/HCl/H2O); (3) the chiral building blocks are easily amenable for further modifications in structure-property relationship studies; (4) the gelation phenomenon takes place efficiently at low temperature upon warming up the isotropic solution, conversely to the typical gel preparation protocol (gel formation upon cooling down the isotropic solution); (5) the formed organic gels are not thermoreversible in spite of the noncovalent interactions that hold the 3D-fibrillar network together.