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Chemical Structure| 28970-91-4 Chemical Structure| 28970-91-4

Structure of 28970-91-4

Chemical Structure| 28970-91-4

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Product Details of [ 28970-91-4 ]

CAS No. :28970-91-4
Formula : C9H8BrNO
M.W : 226.07
SMILES Code : N#CC1=CC=C(OC)C=C1CBr
MDL No. :MFCD18392038

Safety of [ 28970-91-4 ]

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H302-H318
Precautionary Statements:P280-P305+P351+P338
Class:8
UN#:3261
Packing Group:

Application In Synthesis of [ 28970-91-4 ]

* 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 [ 28970-91-4 ]

[ 28970-91-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 21883-13-6 ]
  • [ 28970-91-4 ]
YieldReaction ConditionsOperation in experiment
81% With N-Bromosuccinimide; dibenzoyl peroxide; In tetrachloromethane; at 80℃; for 16h; 2-(bromomethyl)-4-methoxybenzonitrileInto a 50-mL round-bottom flask, was placed a mixture of <strong>[21883-13-6]4-methoxy-2-methylbenzonitrile</strong> (2 g, 13.59 mmol, 1.00 equiv), CCl4 (30 mL), NBS (2.67 g, 15.00 mmol, 1.10 equiv) and BPO (100 mg, 0.39 mmol, 0.03 equiv). The resulted solution was stirred for 16 h at 80 C. After the reaction, it cooled to rt. The reaction mixture was washed with 3×20 mL of water. The organic phase was dried over anhydrous sodium sulfate and concentrated under vacuum. This resulted in 2.50 g (81%) of 2-(bromomethyl)-4-methoxybenzonitrile as a yellow solid. LC-MS (ESI) m/z: calculated for C9H8BrNO: 224. found: 395 [M+H]+. Rt: 1.44 min.
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); In tetrachloromethane;Heating / reflux; Compound 235 Isomers; N-(3, 4-difluorophenyl)-3-methyl-L-valyl-(4R)-N-((1R,2S)-1-((cyclopropylsulfonyl)carbamoyl)-2-vinylcyclopropyl)-4-((9-methoxy-4-methyl-3,4-dihydro-2H-[1,4]oxazino[3,2-c]isoquinolin-6-yl)oxy)-L-prolinamide andN-(3, 4-difluorophenyl)-3-methyl-D-valyl-(4R)-N-((1R,2S)-1-((cyclopropylsulfonyl)carbamoyl)-2-vinylcyclopropyl)-4-((9-methoxy-4-methyl-3,4-dihydro-2H-[1,4]oxazino[3,2-c]isoquinolin-6-yl)oxy)-L-prolinamide; Example 235; Preparation of Compounds 235A and 235B; Step 1; <strong>[21883-13-6]4-methoxy-2-methylbenzonitrile</strong> (50 g, 340 mmole) and NBS (62 g, 350 mmole) were suspended in CCl4 (500 ml) and AIBN (5 g, 10% wt) was added. The mixture was heated at flux overnight. Filtered off precipitate and removed the solvent. The brown oil was purified by flash column (2-5% acetone:hexanes). White crystal (36 g) were obtained.
 

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