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CAS No. : | 95-14-7 | MDL No. : | MFCD00005699 |
Formula : | C6H5N3 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | QRUDEWIWKLJBPS-UHFFFAOYSA-N |
M.W : | 119.12 | Pubchem ID : | 7220 |
Synonyms : |
|
Chemical Name : | 1H-Benzo[d][1,2,3]triazole |
Signal Word: | Danger | Class: | 9 |
Precautionary Statements: | P264-P270-P280-P301+P312-P305+P351+P338-P330-P337+P313-P403-P501 | UN#: | 3077 |
Hazard Statements: | H302-H318-H411 | Packing Group: | Ⅲ |
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 |
---|---|---|
70% | Thionyl chloride (1.5 mL, 20 mmol) was added to a solution of benzotriazole (9.6 g, 80 mmol) in THF (100 mL) and the solution was stirred at room temperature for 30 min. Dicarboxylic acids lg-i (10 mmol) in THF (50 mL) were added to the mixture which was stirred at room temperature for 24-48 hours. The precipitate was filtered and washed with THF (50 mL). The solvent was removed under vacuum from the combined filtrate. To the residue, CHC13 (150 mL) was added; the mixture was washed with water (30 ml) and saturated Na2C03 (3 x 30 mL). The organic layer was dried over anhydrous Na2S04, then it was filtered and the solvent was evaporated under vacuum to obtain a solid, which was recrystallized from an appropriate solvent or solvent mixture to obtain the pure compounds 2g-i. (5-Methylbenzene-l,3-diyl)bis(lH-benzotriazol-l-ylmethanone) (2g) White microcrystals; yield: 70percent; mp 183-185 °C. *H NMR (300 MHz, CDC13): delta = 8.82 (br s, 1 H), 8.38 (d, / = 8.4 Hz, 2 H), 8.31 (br s, 2 H), 8.14 (d, / = 8.4 Hz, 2 H), 7.71 (t, J = 7.7 Hz, 2 H), 7.54 (t, / = 7.8 Hz, 2 H), 2.60 (s, 3 H). 13C NMR (75 MHz, CDC13): delta = 165.9, 146.0, 139.2, 136.9, 32.5, 132.4, 132.1, 130.8, 126.8, 120.5, 115.0, 21.7. Anal. Calcd for 21H14N602: C, 65.96; H, 3.69; N, 21.98. Found: C, 65.64; H, 3.66; N, 21.96. |
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