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CAS No. : | 33763-36-9 | MDL No. : | |
Formula : | C14H6N2O | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | - |
M.W : | 218.21 | Pubchem ID : | - |
Synonyms : |
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Signal Word: | Class: | ||
Precautionary Statements: | UN#: | ||
Hazard Statements: | Packing Group: |
* 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 |
---|---|---|
97.43% | In N,N-dimethyl-formamide for 6h; Heating; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
97.43% | With ethylenediamine In ethanol; water; N,N-dimethyl-formamide | Results and Discussion 3,7-Dicyano-dibenzofuran 19. A suspension of 3,7-dibromo-dibenzofuran (18, 10.27 g, 31.51 mmol) and copper(I) cyanide (8.23 g, 94.5 mmol) in DMF (80 mL) was refluxed under N2 for 6 h. The reaction mixture was poured into ice-water (300 mL). The precipitated solid was collected and stirred for 5 h in a solution of ethylenediamine (50 mL) in water (300 mL). The solid was filtered off, washed with water, then stirred in 10% sodium cyanide solution (100 mL) for 4 h. The solid was further purified by suspension in hot ethanol (100 mL) to give a pale yellow powder (6.69 g, 97.43%): mp 322-325° C. (dec.); HPLC method 3 tR=16.56 min (96.6 area %); 1H NMR (300 MHz, DMSO-d6) δ 8.51 (d, J=8.3 Hz, 2 H), 8.48 (s, 2 H), 7.95 (dd, J1=8.3 Hz, J2=1.0 Hz, 2 H); EI-MS m/z 218 (M+). Anal. (C14H6N2.0.23H2O) C, H, N. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
39% | Stage #1: 3,7-dibromodibenzo[b,d]furan; copper(l) cyanide In N,N-dimethyl-formamide at 150℃; for 48h; Inert atmosphere; Stage #2: With hydrogenchloride; iron(III) chloride In water; N,N-dimethyl-formamide for 2h; Inert atmosphere; |