Name | 4-(trifluoromethyl)benzenecarboximidamide hydrochloride (1:1) |
Synonyms | 4-TrifluoroMethyl-benzanidibe HCL 4-TRIFLUOROMETHYL-BENZAMIDINE HCL 2,6-dichlorobenzenecarboximidamide 4-Trifluoromethylbenzamidinehydrochloridel 4-TRIFLUOROMETHYL-BENZAMIDINE HYDROCHLORIDE 4-(Trifluoromethyl)Benzamidine Hydrochloride 4-(Trifluoromethyl)benzenecarboximidamide hydrochloride 4-(Trifluoromethyl)benzene-1-carboximidamide hydrochloride |
CAS | 38980-96-0 |
InChI | InChI=1/C7H6Cl2N2/c8-4-2-1-3-5(9)6(4)7(10)11/h1-3H,(H3,10,11) |
Molecular Formula | C8H8ClF3N2 |
Molar Mass | 224.61 |
Density | 1.46g/cm3 |
Melting Point | 158-161℃ |
Boling Point | 287.5°C at 760 mmHg |
Flash Point | 127.7°C |
Vapor Presure | 0.00247mmHg at 25°C |
Appearance | powder to crystal |
Color | White to Almost white |
Storage Condition | Inert atmosphere,Room Temperature |
Refractive Index | 1.62 |
Hazard Symbols | Xi - Irritant |
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R43 - May cause sensitization by skin contact |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S36/37 - Wear suitable protective clothing and gloves. |
Uses | 4-trifluoromethylbenzamidine hydrochloride is used as an intermediate in pharmaceutical synthesis. |
preparation | the preparation of 4-trifluoromethylbenzamidine hydrochloride is as follows: weigh 85.5g(0.5mol) of 4-trifluoromethylbenzonitrile into a 250mL round bottom flask, add 200mL of methanol to dissolve it, add 5.6g(0.052mol) of methanol solution of sodium methoxide with a mass percentage of 50%, and react by magnetic stirring for 3h at room temperature. After 27.5g(0.515mol) of ammonium chloride was put into the above system, the reaction continued at room temperature for 48h. TLC tracks the end point of the reaction, evaporates the solvent after the reaction is over, the remaining solid is washed with ether, filtered, and repeated three times, the filter cake is in turn with hot water (about 60 ℃), and ethanol is recrystallized to obtain white needle-like crystal 4-trifluoromethylbenzamidine hydrochloride 97g, the yield is 86.4%. |