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CAS No. : | 57381-44-9 | MDL No. : | MFCD00672948 |
Formula : | C7H3BrClN | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | NKDMQBUJOXQVEA-UHFFFAOYSA-N |
M.W : | 216.46 | Pubchem ID : | 21525431 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium t-butanolate;tris-(dibenzylideneacetone)dipalladium(0); rac-BINAP; In toluene; at 80℃;Inert atmosphere; | 3.1.1 2-chloro-5-piperazin-1-yl-benzonitrile (V-1) 0.200 g tert-butyl piperazine-1-carbamidate, 0.235 g <strong>[57381-44-9]5-bromo-2-chlorbenzonitrile</strong>, 0.013 g tris(dibenzylideneacetone)dipalladium(0), 0.018 g rac-BINAP and 0.145 g sodium-tert-butoxide are suspended in 5 ml anhydrous, degassed toluene and heated under argon at 80 C until no further reaction takes place. The reaction mixture is filtered through Celite and mixed with a saturated sodium chloride solution. The product is extracted with ethyl acetate, dried and evaporated to dryness. 0.450 g tert-butyl 4-(4-chloro-3-cyanophenyl)-piperazine-1-carbamidate are obtained as an oil. The product obtained and 2 ml trifluoroacetic acid are suspended in 3 ml dichloromethane. The reaction mixture is stirred at ambient temperature until no further reaction takes place and then evaporated to dryness. The residue is suspended in diethyl ether and the solid is suction filtered. 0.300 g (V-1) are obtained as the trifluoroacetate. Analytical HPLC-MS (method B): RT=1.02 min |