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CAS No. : | 1235442-60-0 | MDL No. : | N/A |
Formula : | C8H6Br2N2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | ZKLQMVKUUYNYSW-UHFFFAOYSA-N |
M.W : | 289.95 | Pubchem ID : | 68632242 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501 | UN#: | |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | |
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 |
---|---|---|
79% | With potassium carbonate; for 1h;Reflux; | 4,7-dibromo- lH-benzo[d]imidazole ( lc) (300 mg, 1.08 mmol) was dissolved in dry ethanol ( 10 ml) under stirring. K2CO3 (414 mg, 3.24 mmol) was added to the resulting solution. The reaction mixture was heated at reflux to which iodomethane (0. 13 ml, 2.17 mmol) was added dropwise and the mixture was maintained at reflux for 1 hour. The reaction mixture was cooled at room temperature to which water (20 ml) was added. From the said mixture ethanol was evaporated and the so formed precipitate was collected by filtration. The resulting solid cake was washed with water, hexane/ diethyl ether ( 1 / 1), and dried to afford (250 mg, 79% yield) 4,7- dibromo- l-methyl- lH-benzo[d]imidazole (2a) as a solid. MS (EI) m/z: 290.9 (M+l). Ή NMR (400 MHz, DMSG-d6): 8 8.32 (s, 1H), 7.34 (s, 2H), 4.05 (s, 3H). |