N,N'-BIS(SALICYLIDENE)-1,6-HEXANEDIAMINE synthesis
- Product Name:N,N'-BIS(SALICYLIDENE)-1,6-HEXANEDIAMINE
- CAS Number:4081-35-0
- Molecular formula:C20H24N2O2
- Molecular Weight:324.42
Yield: 97%
Reaction Conditions:
in N,N-dimethyl-formamide at 20; for 6 h;
Steps:
7.I
Example 7; Three-Stage Synthesis of the Compound P-C6-Bz; Three-stage synthesis of P-C6-B: Stage (I) Synthesis of the intermediate product C6-HB; Stage (II) Synthesis of the intermediate product P-C6-HB; Stage (III) Synthesis of the monomer P-C6-Bz. The reaction is as follows: Stage (I) Synthesis of the intermediate product C6-HB. 2-HB 20.32 g (2×83.25 mmol) and 1,6-hexanediamine 5 g (83.25 mmol) are dissolved in 50 ml DMF within a three-neck flask and stirred under nitrogen with yellow precipitates and slightly exothermic. Under room temperature, the mixture keeps stirring for 6 hours and is then poured into de-ionized water for precipitates. After filtration, vacuum evaporation and vacuum oven at 100° C., 13.5465 g yellow powder C6-HB is obtained with a yield rate of 97%. Melting point 74.33° C. The results are shown in FIG. 5A. FIG. 5A is 1H-NMR spectrum of the intermediate product C6-HB. The structure of the synthesized C6-HB can be verified by the figure.
References:
CHANG CHUN PLASTICS CO., LTD.;NATIONAL CHUNG HSING UNIVERSITY US2009/171120, 2009, A1 Location in patent:Page/Page column 19; 20
