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CAS No. : | 1633-84-7 | MDL No. : | MFCD09952390 |
Formula : | C4H8Cl2O2S | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | YDSCNYYRPIFOJD-UHFFFAOYSA-N |
M.W : | 191.08 | Pubchem ID : | 74212 |
Synonyms : |
|
Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P261-P280-P305+P351+P338-P310 | UN#: | 1760 |
Hazard Statements: | H302-H314 | Packing Group: | Ⅲ |
GHS Pictogram: |
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* 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 |
---|---|---|
With triethylamine; In tetrahydrofuran; at 20℃; for 1h; | TP28. To 50 mg of (R)-6-(4-aminophenyl)-5-methyl-4,5-dihydropyridazin-3(2H)- one (50 mg, 0.25 mmol) dissolved in 2 mL of THF was added 51 mu^ triethylamine (0.37 mmol) and 4-chlorobutane-l-sulfonyl chloride (39 L, 0.27 mmol). The reaction was stirred at room temperature for 1 h before filtering over Celite and concentration. The crude material was dissolved in 4 mL of DMF, 102 mg of K2CO3 (0.74 mmol) was added before heating at 60 C overnight. After cooling, the solvent was thoroughly removed by rotary evaporation followed by azeotroping with toluene. Water was added and was rinsed with EtOAc and CH2CI2, the organic layers were dried, concentrated and chromatographed with 0-50% EtOAc to isolate 68 mg of product as an off-white solid (86%). NMR (300 MHz, CDCI3) delta 8.57 (s, 1H), 7.75 (d, J= 8.8, 2H), 7.39 (d, J= 8.8, 2H), 3.86 - 3.67 (m, 2H), 3.42 - 3.27 (m, 1H), 3.27 - 3.14 (m, 2H), 2.71 (dd, J= 6.8, 16.9, 1H), 2.48 (d, J = 16.0, 1H), 2.42 - 2.27 (m, 2H), 1.93 (dt, J= 5.9, 11.6, 2H), 1.25 (d, J= 7.4, 3H). 13C MR (75 MHz, CDC13) delta 166.41, 153.14, 141.83, 133.17, 126.71, 126.67, 77.42, 77.00, 76.58, 53.26, 50.75, 33.87, 28.08, 24.52, 24.21, 16.21. 322 (M + 1). |
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