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CAS No. : | 6952-59-6 | MDL No. : | MFCD00001796 |
Formula : | C7H4BrN | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | STXAVEHFKAXGOX-UHFFFAOYSA-N |
M.W : | 182.02 | Pubchem ID : | 23381 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312-P304+P340+P312-P305+P351+P338-P332+P313-P337+P313-P403+P233-P405-P501 | UN#: | N/A |
Hazard Statements: | H302+H312+H332-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 |
---|---|---|
60% | With 1H-imidazole; palladium diacetate; triethylamine; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; magnesium chloride In tetrahydrofuran at 90℃; for 0.5 h; Microwave irradiation | To a stirred mixture of aryl or heteroaryl halide(Br, I) (0.5 mmol), potassium mono ethyl malonate (0.75 mmol) in THF (10 mL) taken in a 30 mL microwave vial, was added Pd(OAc)2(5 molpercent), Xantphos (5 mol percent), MgCl2 (0.75), Et3N ( 0.75mmol), imidazole (1 mmol) followed by Co2(CO)8 (0.15mmol). The vial was sealed immediately and microwave irradiated at 90°C for 30min. The reaction mixture was concentrated and diluted with ethyl acetate and water. The ethyl acetate layer was separated, dried over sodium sulphate and concentrated. The crude product obtained was purified by column chromatography to get the pure compound. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
55% | With (1,2-dimethoxyethane)dichloronickel(II); N,N,N,N,-tetramethylethylenediamine; (4,4'-di-tert-butyl-2,2'-dipyridyl)-bis-(2-phenylpyridine(-1H))-iridium(III) hexafluorophosphate; water; N-ethyl-N,N-diisopropylamine In dimethyl sulfoxide at 80℃; for 24 h; Schlenk technique; Sealed tube; Irradiation | General procedure: Aryl-halide (0.2 mmol, 1 equiv.), Ir(dtbbpy)(ppy)2PF6 (1.8 mg, 0.002 mmol, 1 mol percent), NiCl2.glyme (4.4mg, 0.02 mmol, 10 mol percent), DMSO (2.0 mL) was added to a 10 mL schlenk flask equipped with a magnetic stirrer bar. This resulting mixture was sealed and degassed via vacuum evacuation and subsequent backfill with ethylene for three times. Then, N,N,N’,N’-tetramethylethylenediamine, TMEDA(60 μL, 2 equiv.), N,N-diisopropylethylamine, DIPEA (70 μL, 2 equiv.) and H2O (7.2 μL, 2 equiv.) were subsequently added in this order. The mixture was then irradiated with blue LED (2 meter strip, 18 W)with ethylene balloon for 24 hours at 80oC (Figure S1). The reaction was added water (30 mL) and extracted with ethyl acetate (10 mL) three times. Combined organic layer was successively washed with brine three times and dried over Na2SO4 and concentrated under reduced pressure. The residue was then subjected to flash column chromatography (hexane or hexane/ethyl acetate) to yield theproduct |