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Chemical Structure| 291535-21-2 Chemical Structure| 291535-21-2

Structure of 291535-21-2

Chemical Structure| 291535-21-2

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Product Details of [ 291535-21-2 ]

CAS No. :291535-21-2
Formula : C11H15BrOS
M.W : 275.21
SMILES Code : O=CC1=CC(CCCCCC)=C(Br)S1
MDL No. :MFCD31630733
InChI Key :KIIPXASZHQGYPN-UHFFFAOYSA-N
Pubchem ID :85776358

Safety of [ 291535-21-2 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P280-P301+P312-P302+P352-P305+P351+P338

Application In Synthesis of [ 291535-21-2 ]

* 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 [ 291535-21-2 ]

[ 291535-21-2 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 291535-21-2 ]
  • [ 15666-97-4 ]
  • 5-(2-cyano-3-octyloxy-3-oxo-1-propenyl)-2-bromo-3-hexylthiophene [ No CAS ]
YieldReaction ConditionsOperation in experiment
95% With piperidine; In chloroform; at 60℃; for 24h;Inert atmosphere; Octyl cyanoacetate (745 mg, 3.78 mmol) was added to a solution of CHO-1T-Br (400 mg, 1.45 mmol) and piperidine (0.2 mL) in dry CHCl3 (120 mL) and then the solution was stirred for 24 h under N2 at 60 C. Water was added and the reaction mixture was extracted with CHCl3, the combined extracts were washed three times with water and then dried (Na2SO4). The solvent was evaporated under reduced pressure and the crude product was further purified through column chromatography (SiO2, n-hexane: CHCl3 = 1:1) to afford a dark powder (625 mg, 95% yield). 1H NMR (CDCl3, 400 MHz) delta ppm: 8.15 (s, 1H), 7.44 (s, 1H), 4.28 (t, J = 6.8 Hz, 2H), 2.59 (t, J = 7.6 Hz, 2H), 1.77-1.70 (m, 2H), 1.62-1.55 (m, 2H), 1.40-1.28 (m, 16H), 0.91-0.87 (m, 6H). 13C NMR (100 MHz, CDCl3) delta ppm: 162.68, 145.78, 144.11, 137.89, 135.48, 121.76, 115.66, 98.92, 66.70, 31.74, 31.94, 29.43, 29.21, 29.14, 29.11, 28.77, 28.49, 25.76, 22.61, 22.53. HRMS (ESI) calcd. For C22H32BrNO2S + Na+ [M + Na+] 476.1235, found 476.1232.
87% With piperidine; In chloroform; at 65℃; for 12h; Compound 13 (1.00 g, 3.63 mmol) was added to a 50 mL vial,Octyl cyanoacetate (1.07 g, 5.45 mmol),Three drops of piperidine,20 mL of CHCl3,Heated to 65 C,The reaction was stirred for 12 hours.The reaction mixture was cooled to room temperature,The solvent was removed by evaporation.The crude product was isolated by silica gel column chromatography,With n-hexane / trichloromethane = 3/1 to do eluent,To give 1.44 g of a yellow solid in 87% yield.
 

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