Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | ||||||
{[ item.p_purity ]} | {[ item.pr_size ]} | Inquiry |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,1,item.pr_is_large_size_no_price) ]} |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} | Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate,item.pr_is_large_size_no_price) ]} | {[ item.pr_usastock ]} | in stock Inquiry - | {[ item.pr_chinastock ]} | {[ item.pr_remark ]} in stock Inquiry - | Login | Inquiry |
Please Login or Create an Account to: See VIP prices and availability
CAS No. : | 127-68-4 | MDL No. : | MFCD00007490 |
Formula : | C6H4NNaO5S | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | LJRGBERXYNQPJI-UHFFFAOYSA-M |
M.W : | 225.15 | Pubchem ID : | 31389 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P501-P261-P272-P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P333+P313 | UN#: | |
Hazard Statements: | H319-H317 | 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 |
---|---|---|
25.9% | With ferrous(II) sulfate heptahydrate; sulfuric acid; boric acid; In water; glycerol; at 0 - 135℃; for 4h; | Sodium-3-nitrobenzenesulfonate (17.5 g, 77.7 mmol), boric acid (2.4 g, 38.8 mmol), and ferrous sulfate heptahydrate (1.4 g, 0.5 mmol) were added to 23.1 mL of 98percent sulfuric acid. After cooling to 0 °C, glycerol (12.5 mL), 2-amino-6-methylpyridine (4.3 g, 40.0 mmol), and hot water (50 °C, 22.5 mL) were slowly added to above mixture. The reaction solution was refluxed for 4 h at 135 °C and cooled to room temperature. 40percent water solution of NaOH was used to mediate pH to 7 and chloroform was used to extract the product. The organic phase was concentrated in vacuum to give the crude product and the final product was obtained by column chromatography (200-300 mesh, 3/1 ethyl acetate/petroleum ether) (3.0 g, 25.9percent yield). Characterization of 2-methyl-1,8-naphthyridine: HRMS (EI) m/z: calcd for C9H9N2 [M+H]+, 145.0766; found, 145.0768. 1H NMR (400 MHz; CDCl3; TMS) 9.08 (d, 1H), 8.13-8.16 (m, 1H), 8.08 (d, 1H), 7.43-7.45 (m, 1H), 7.28 (d, H), 2.82 (s, 3H). 13C NMR: deltaC (100 MHz, CDCl3): 163.1, 160.0, 153.3, 136.9, 136.7, 123.0, 121.4, 120.8, 25.7. |