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. : | 24072-75-1 | MDL No. : | MFCD00053558 |
Formula : | C7H4Cl2N2S | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | GHKHTBMTSUEBJD-UHFFFAOYSA-N |
M.W : | 219.09 | Pubchem ID : | 32206 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H317-H319 | 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 |
---|---|---|
19% | at 0 - 15℃; for 16 h; | j00320j To a mixture of 3,4-dichloroaniline (10 g, 62 mmol) and potassium thiocyanate (48 g, 0.49 mol) in acetic acid (160 mL) at 0 °C was added slowly with constant stirring a solution of liquidbromine (31 g, 0.19 mol) in acetic acid (160 mL). The temperature was maintained at 0 °C throughout the addition. The solution was stirred for 2 hours at 0°C and 14 hours at 15 °C, then diluted with water (100 mL), adjusted to pH 78 with ammonium hydroxide and extracted with ethyl acetate (3 x 50 mL). The combined organic layers were washed with brine (3 x 300 mL) and concentrated in vacuo. The residue was purified by prep-HPLC [Instmment: GX-B; Column: GEMNI 250 x 50 mm, particle size: 10 .im; Mobile phase: 25-50percent acetonitrile in H20 (add 0.1percent TFA, v/v)j to give compound B- 24 (2.6 g, 19percent yield) as a white solid. LCMS (J): tR=0.694 mi (ES) m/z (M+H)219.0. ‘H-NMR (CD3OD, 400 MHz): 7.89 (s, 1H), 7.55 (s, 1H). |