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CAS No. : | 1378390-29-4 | MDL No. : | MFCD30187855 |
Formula : | C19H15BrO3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | NEADWTKOYDYIHL-UHFFFAOYSA-N |
M.W : | 371.22 | Pubchem ID : | 86688342 |
Synonyms : |
|
Chemical Name : | 3-(2-Bromoacetyl)-10,11-dihydro-5H-dibenzo[c,g]chromen-8(9H)-one |
Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P501-P260-P234-P264-P280-P390-P303+P361+P353-P301+P330+P331-P363-P304+P340+P310-P305+P351+P338-P310-P406-P405 | UN#: | 3261 |
Hazard Statements: | H314-H290 | Packing Group: | Ⅱ |
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 |
---|---|---|
69% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 60℃; for 3h; | 2S,4S)-l-teri-butyl 2-(2-oxo-2-(8-oxo-8,9,l 0,11 -tetrahydro-5H-dibenzo [c,g] chromen-3-yl)ethyl) 4-methylpyrrolidine-l,2-dicarboxylate To a solution of 3-(2-bromoacetyl)-10,l l-dihydro-5H-dibenzo[c,g]chromen-8(9H)-one (647 mg, 1.74 mmol) in MeCN (20 mL) was added ((2S,4S)-l -(tert-butoxycarbonyl)-4-methylpyrrolidine- 2-carboxylic acid (559 mg, 2.44 mmol) and DIPEA (0.36 mL, 2.09 mmol) and the solution was heated to 60 °C. After stirring for 3 h, the solution was cooled to rt, and diluted with EtOAc and washed successively with saturated aqueous NaHCC>3 and brine. The organics were dried over MgS04, filtered and concentrated under reduced pressure. The crude residue was purified by silica column chromatography (20percent to 50percent EtOAc/hexanes) to afford (2S,4S)-1 -tert-butyl 2-(2-oxo-2-(8- oxo-8,9, 10,11 -tetrahydro-5H-dibenzo [c,g]chromen-3-yl)ethyl) 4-methylpyrrolidine- 1 ,2-dicarboxylate (621 mg, 69percent). |
69% | With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 60℃; for 3h; | To a solution of 3-(2-bromoacetyl)-10,11-dihydro-5H-dibenzo[c,g]chromen-8(9H)-one (647 mg, 1.74 mmol) in MeCN (20 mL) was added ( <strong>[364750-81-2](2S,4S)-1-(tert-butoxycarbonyl)-4-methylpyrrolidine-2-carboxylic acid</strong> (559 mg, 2.44 mmol) and DIPEA (0.36 mL, 2.09 mmol) and the solution was heated to 60° C. After stirring for 3 h, the solution was cooled to rt, and diluted with EtOAc and washed successively with saturated aqueous NaHCO3 and brine. The organics were dried over MgSO4, filtered and concentrated under reduced pressure. The crude residue was purified by silica column chromatography (20percent to 50percent EtOAc/hexanes) to afford (2S,4S)-1-tert-butyl 2-(2-oxo-2-(8-oxo-8,9,10,11-tetrahydro-5H-dibenzo[c,g]chromen-3-yl)ethyl) 4-methylpyrrolidine-1,2-dicarboxylate (621 mg, 69percent). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65% | With triethylamine; In acetonitrile; at 50℃; for 15h; | To a solution of 3-(2-bromoacetyl)-10,l l -dihydro-5H-dibenzo[c,g]chromen-8(9H)-one in MeCN (30 mL) was added (2S,5S)-l -(tert-butoxycarbonyl)-5-methylpyrrolidine-2-carboxylic acid (1.2 g, 3.23 mmol) and triethyl amine (0.48 mL, 3.55 mmol) and the solution was heated to 50 °C. After stirring for 15 h, the solution was cooled to rt, and diluted with EtOAc and washed successively with saturated aqueous NaHCC>3 and brine. The organics were dried over MgSO i, filtered and concentrated under reduced pressure. The crude residue was purified by silica column chromatography (20percent to 50percent> EtOAc/hexanes) to afford (2S,5S)-1 -tert-butyl 2-(2-oxo-2-(8-oxo- 8,9,10, 11 -tetrahydro-5H-dibenzo[c,g] chromen-3 -yl)ethyl) 5-methylpyrrolidine-l ,2-dicarboxylate (1.09 g, 65percent). |
65% | With triethylamine; In acetonitrile; at 50℃; for 15h; | To a solution of 3-(2-bromoacetyl)-10,11-dihydro-5H-dibenzo[c,g]chromen-8(9H)-one in MeCN (30 mL) was added <strong>[334769-80-1](2S,5S)-1-(tert-butoxycarbonyl)-5-methylpyrrolidine-2-carboxylic acid</strong> (1.2 g, 3.23 mmol) and triethyl amine (0.48 mL, 3.55 mmol) and the solution was heated to 50° C. After stirring for 15 h, the solution was cooled to rt, and diluted with EtOAc and washed successively with saturated aqueous NaHCO3 and brine. The organics were dried over MgSO4, filtered and concentrated under reduced pressure. The crude residue was purified by silica column chromatography (20percent to 50percent EtOAc/hexanes) to afford (2S,5S)-1-tert-butyl 2-(2-oxo-2-(8-oxo-8,9,10,11-tetrahydro-5H-dibenzo[c,g]chromen-3-yl)ethyl) 5-methylpyrrolidine-1,2-dicarboxylate (1.09 g, 65percent). |
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