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. : | 17518-98-8 | MDL No. : | MFCD10000555 |
Formula : | C8H4BrClN2O | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | RFCXXKWROOFQSI-UHFFFAOYSA-N |
M.W : | 259.49 | Pubchem ID : | 135711216 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H332-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 |
---|---|---|
100% | In ethanol; for 16h;Reflux; | To a solution of <strong>[150812-32-1]2-amino-4-bromo-5-chlorobenzoic acid</strong> (500 mg,2mmol) in EtOH (20 mL) at RT, formamidine acetate (620 mg, 6 mmol) was added. The mixture was reflux for 16 hour. The mixture was concentrated in vacuo, and the residue was washed by saturated NaHCO3 aqueous solution, and a mixture of ethylacetate/petroleum ether = 1:2. The solid was dried in vacuo to get the product (520 mg, 100% yield) which was used directly in next step without further purification. ESI-MSm/z: 259.0 [M+H]. |
In ethanol; for 16h;Reflux; | 7-Bromo-6-chloroquinazolin-4-ol To a solution of <strong>[150812-32-1]2-amino-4-bromo-5-chlorobenzoic acid</strong> (500 mg, 2mmol) in EtOH (20 mL) at RT, formamidine acetate (620 mg, 6 mmol) was added. The mixture was reflux for 16 hour. The mixture was concentrated in vacuo, and the residue was washed by saturated NaHCO3 aqueous solution, and a mixture of ethyl acetate/petroleum ether = 1:2. The solid was dried in vacuo to get the product (520 mg, 100% yield) which was used directly in next step without further purification. ESI-MS m/z: 259.0 [M+H]+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | at 150 - 170℃; for 5h; | To a mixture of 3-chlorotoluene (200 g, 1.58 mol), FeCl3 (9.4 g, 0.06 mol) and CH2Cl2 (1000 mL)stirred at 0~10 C, Br2 (500 g, 3.12 mol) was added slowly, during which the produced gas wasabsorbed by 15% NaOH aqueous solution (2000 mL). After 1 h of continued vigorous stirring, water(100 mL) was added and the mixture was adjusted to pH 8.0~10.0 with 10% aqueous NaOH (200 mL).The organic layer was separated and concentrated to dryness under vacuum to give a solid (95.7%, m.p.95~96 C), 426 g of which was added to a mixture of water (2000 mL), pyridine (200 mL) and KOH(112 g, 2.0 mol) and heated. When the interior temperature reached 80 C, KMnO4 (800 g, 5.0 mol) wasadded in portions, and the mixture was refluxed until complete consumption of the KMnO4. Then thesolution was filtered, the precipitate was washed with 10% KOH a.q. (1000 mL). The filtrates werecombined, and then vacuum evaporated to remove the pyridine and form a turbid solution, whichneeded to be filtered again. The fresh filtrate was acidified with concentrated HCl (360 mL) to pH 3~4.Then the precipitate was filtered, dried and crushed (80%, m.p. 170~171 C). A portion (340 g) wasdissolved in 25% NH3-H2O (1700 mL). To the solution, Cu2O was added in batches at 30~40 C. Afterabout 5 h of stirring, the solution without NH3 gas was diluted and acidified. Then the solid was filtered, washed, dried (yield 96%, m.p. 248~249 C) and 250 g was dissolved in 1500 mL of formamide,maintained at 150~170 C for 5 h. The solution was allowed to cool to R.T., and the precipitate wasfiltered and washed to give a white solid (92%, m.p. 306~307 C). Thus, 2 was succesfully obtained inan overall yield of 67%. IR (KBr), (cm1): 3188.6, 1643.4 (NH), 1680.3 (C=O); ESI-MS (m/z): 256.9[M - H]-, 258.9 [M + 2 - H]; 1H-NMR (300 MHz, DMSO-d6), delta (ppm): 12.50 (br, 1H), 8.15 (s, 1H),8.14 (s, 1H), 8.05 (s, 1H). |
[ 215115-09-6 ]
8-Bromo-6-methylquinazolin-4(3H)-one
Similarity: 0.80
[ 403850-89-5 ]
7-Bromo-2-methylquinazolin-4(3H)-one
Similarity: 0.79
[ 1204101-90-5 ]
8-Bromo-6-fluoroquinazolin-4(3H)-one
Similarity: 0.72
[ 130148-53-7 ]
2-Amino-6-bromoquinazolin-4-ol
Similarity: 0.70
[ 6958-39-0 ]
6,7-Dichloroquinazolin-4(3H)-one
Similarity: 0.82
[ 35982-55-9 ]
6-Chloro-2-(trifluoromethyl)quinazolin-4(3H)-one
Similarity: 0.73
[ 858238-17-2 ]
7-Chloro-6-methoxyquinazolin-4(3H)-one
Similarity: 0.70
[ 53449-14-2 ]
7-Chloro-6-nitroquinazolin-4(3H)-one
Similarity: 0.69
[ 192799-05-6 ]
6-Bromo-5-chloroindoline-2,3-dione
Similarity: 0.67
[ 6958-39-0 ]
6,7-Dichloroquinazolin-4(3H)-one
Similarity: 0.82
[ 215115-09-6 ]
8-Bromo-6-methylquinazolin-4(3H)-one
Similarity: 0.80
[ 403850-89-5 ]
7-Bromo-2-methylquinazolin-4(3H)-one
Similarity: 0.79
[ 35982-55-9 ]
6-Chloro-2-(trifluoromethyl)quinazolin-4(3H)-one
Similarity: 0.73
[ 6958-39-0 ]
6,7-Dichloroquinazolin-4(3H)-one
Similarity: 0.82
[ 215115-09-6 ]
8-Bromo-6-methylquinazolin-4(3H)-one
Similarity: 0.80
[ 403850-89-5 ]
7-Bromo-2-methylquinazolin-4(3H)-one
Similarity: 0.79
[ 35982-55-9 ]
6-Chloro-2-(trifluoromethyl)quinazolin-4(3H)-one
Similarity: 0.73