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Chemical Structure| 951380-42-0 Chemical Structure| 951380-42-0

Structure of 951380-42-0

Chemical Structure| 951380-42-0

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Product Details of [ 951380-42-0 ]

CAS No. :951380-42-0
Formula : C18H18FNO2S
M.W : 331.40
SMILES Code : O=C(S1)CC2=C1CCN(C(C3=CC=CC=C3F)C(C4CC4)=O)C2
MDL No. :MFCD13185970

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Application In Synthesis of [ 951380-42-0 ]

* 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.

  • Downstream synthetic route of [ 951380-42-0 ]

[ 951380-42-0 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 204205-33-4 ]
  • [ 178688-49-8 ]
  • [ 951380-42-0 ]
YieldReaction ConditionsOperation in experiment
With tetrabutylammomium bromide; sodium hydrogencarbonate; sodium bromide; In N,N-dimethyl-formamide; at 40 - 55℃; for 0.75h;Inert atmosphere;Product distribution / selectivity; 25.7g alpha-cyclopropylcarbonyl-2-fluorobenzyl bromide prepared in Example 1, 37.6g 2-oxo-4,5,6,7-tetrahydrothieno[3,2-c]pyridine p-toluenesulfonate, 33.6g sodium bicarbonate, 1.0g sodium bromide, 3.2g tetrabutylammonium bromide and 150ml DMF were added to a 1000ml four-neck flask equipped with a mechanical stirring device, a thermometer, a reflux condenser and a constant-pressure dropping funnel. The mixture was stirred for 45 minutes under nitrogen atmosphere at 40C?55C and cooled. 200ml ethyl acetate and 300ml water were added thereto, and the system was allowed to seperation. The organic layer was washed with 300ml water and 100ml saturated brine successively, and then dried over anhydrous magnesium sulfate. The resulting mixture was decolored with silica gel bed and filtered. The filtrate was distillated under reduced pressure and concentrated to give 26.75g brown gum. The yield was 94.5% and the purity was 87.46%.
With sodium hydrogencarbonate;tetrabutylammomium bromide; sodium bromide; In N,N-dimethyl-formamide; at 40 - 55℃; for 0.75h;Inert atmosphere;Product distribution / selectivity; 25.7 g alpha-cyclopropylcarbonyl-2-fluorobenzyl bromide prepared in Example 1, 37.6 g 2-oxo-4,5,6,7-tetrahydrothieno [3,2-c]pyridine p-toluenesulfonate, 33.6 g sodium bicarbonate, 1.0 g sodium bromide, 3.2 g tetrabutylammonium bromide and 150 ml DMF were added to a 1000 ml four-neck flask equipped with a mechanical stirring device, a thermometer, a reflux condenser and a constant-pressure dropping funnel. The mixture was stirred for 45 minutes under nitrogen atmosphere at 40 C.-55 C. and cooled. 200 ml ethyl acetate and 300 ml water were added thereto, and the system was allowed to seperation. The organic layer was washed with 300 ml water and 100 ml saturated brine successively, and then dried over anhydrous magnesium sulfate. The resulting mixture was decolored with silica gel bed and filtered. The filtrate was distillated under reduced pressure and concentrated to give 26.75 g brown gum. The yield was 94.5% and the purity was 87.46%.
With potassium hydrogencarbonate; In acetonitrile; at 10 - 15℃; Example-9; Preparation of 5-(alpha-cycloprpylcarbonyl-2-fluorobenzyl)-2-oxo-4,5,6,7- tetrahydrothieno[3,2-c] pyridine of formula (II); To a solution of 2-bromo-l-cyclopropyl-2-(2 -fluorophenyl) ethanone (20 gm) in acetonitrile (90 ml) was cooled to 10C-15C and was added with potassium bicarbonate (19.3 gm). The reaction mass was added with 4,5,6,7-tetrahydrothieno[3,2-C] pyridine-2-one.PTSA (20.62 gm) in step wise manner over period of two hours and stirred for 2-3 hours at 10C-15C. The reaction mixture was added with 180 ml of pre-chilled water and 90 ml of ethyl acetate at the room temperature and stirred for 10-15 minutes and separated the layers. The organic <n="36"/>layer was washed with 10% aqueous solution of sodium chloride solution (90 ml) and charged with activated charcoal and stirred for 15 minutes at room temperature. Filtered the through hyflow bed and washed with 2><18 ml. of ethyl acetate, then filtrate was dried over anhydrous sodium sulfate and evaporated under reduced pressure to obtain the titled compound as an oil (20 gm).
 

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