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,item.mem_rate,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. : | 362527-61-5 | MDL No. : | MFCD13184275 |
Formula : | C10H8BrNO2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | SVBBQSMUEOIQDZ-UHFFFAOYSA-N |
M.W : | 254.08 | Pubchem ID : | 18374323 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-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 |
---|---|---|
76% | Stage #1: With tert.-butylnitrite; boron trifluoride diethyl etherate In dichloromethane at -10 - 20℃; for 4 h; Stage #2: With sodium cyanide; copper(I) cyanide In toluene at 0 - 60℃; for 1.5 h; |
EXAMPLE 2; Preparation of 3-Bromo-4-cyanobenzoic acid; A solution of ethyl 4-amino-3-bromobenzoate (23.5 g, 96.3 mmol) in methylene chloride at -10° C. is treated dropwise with tert-butyl nitrite (14.0 mL, 118.4 mmol), followed by boron trifluoride diethyl etherate (18.4 mL, 146.5 mmol). The reaction mixture is allowed to come to room temperature, stirred for 4 h, diluted with ethyl ether and filtered. The filtercake is dried, dispersed in toluene, cooled to 0° C., treated with a solution of copper (I) cyanide (11.5 g, 129.2 mmol) and sodium cyanide (15.8 g, 323.1 mmol) in water, stirred at 0° C. for 30 min., warmed to 60° C., stirred for 1 h, cooled to room temperature and diluted with EtOAc and water. The organic phase is separated, dried over MgSO4 and concentrated in vacuo. The resultant residue is crystallized from ethyl ether/hexanes to give the ethyl ester of the title compound as an off-white solid, 18.6 g (76percent yield). A solution of this ester (8.5 g, 33.6 mmol) in THF is treated with a solution of NaOH (30 mL, 2.5 N) and ethanol, stirred for 20 h, acidified with 2N HCl and extracted with ethyl ether. The ether extracts are combined, dried over MgSO4 and concentrated in vacuo. The resultant residue is crystallized from ethyl ether/hexanes to afford the title compound as a beige solid, 6.81 g (90percent yield), identified by HNMR and mass spectral analyses. MS m/e 223 (M-H)+; 1H NMR (400 MHz, DMSO-d6) δ 8.05 (dd, J=9.76, 1.37 Hz 1 H), 8.09 (d, J=8.08 Hz, 1H), 8.29 (d, J=1.37 Hz, 1H). |
[ 714237-95-3 ]
Methyl 5-bromo-2-cyanobenzoate
Similarity: 0.90
[ 453566-15-9 ]
Methyl 3-bromo-5-cyanobenzoate
Similarity: 0.90
[ 1031927-03-3 ]
Methyl 2-bromo-5-cyanobenzoate
Similarity: 0.86
[ 147962-81-0 ]
Ethyl 3-bromo-4-methylbenzoate
Similarity: 0.85
[ 714237-95-3 ]
Methyl 5-bromo-2-cyanobenzoate
Similarity: 0.90
[ 453566-15-9 ]
Methyl 3-bromo-5-cyanobenzoate
Similarity: 0.90
[ 1031927-03-3 ]
Methyl 2-bromo-5-cyanobenzoate
Similarity: 0.86
[ 147962-81-0 ]
Ethyl 3-bromo-4-methylbenzoate
Similarity: 0.85
[ 714237-95-3 ]
Methyl 5-bromo-2-cyanobenzoate
Similarity: 0.90
[ 453566-15-9 ]
Methyl 3-bromo-5-cyanobenzoate
Similarity: 0.90
[ 1031927-03-3 ]
Methyl 2-bromo-5-cyanobenzoate
Similarity: 0.86
[ 147962-81-0 ]
Ethyl 3-bromo-4-methylbenzoate
Similarity: 0.85
[ 1223434-15-8 ]
Methyl 4-bromo-2-cyanobenzoate
Similarity: 0.83
[ 714237-95-3 ]
Methyl 5-bromo-2-cyanobenzoate
Similarity: 0.90
[ 453566-15-9 ]
Methyl 3-bromo-5-cyanobenzoate
Similarity: 0.90
[ 1031927-03-3 ]
Methyl 2-bromo-5-cyanobenzoate
Similarity: 0.86
[ 1223434-15-8 ]
Methyl 4-bromo-2-cyanobenzoate
Similarity: 0.83