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Chemical Structure| 7311-77-5 Chemical Structure| 7311-77-5

Structure of 7311-77-5

Chemical Structure| 7311-77-5

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Product Details of [ 7311-77-5 ]

CAS No. :7311-77-5
Formula : C13H13NO3S
M.W : 263.31
SMILES Code : O=C(C1=C(NC(C)=O)SC2=CC=CC=C12)OCC

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Application In Synthesis of [ 7311-77-5 ]

* 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 [ 7311-77-5 ]

[ 7311-77-5 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 7311-77-5 ]
  • [ 7311-95-7 ]
YieldReaction ConditionsOperation in experiment
85% With pyrrolidine; In toluene; at 100℃; for 8.0h; To a solution of lb (1.06 g, 4.03 mmol) in toluene (100 mL) was added pyrrolidine (5 mL). The resultant mixture was heated at [100 C] for 8 h, diluted with brine solution (200 mL) and extracted with ethyl ether (300 mL, 3x). The combined organic phases were dried over [MGS04,] filtered, and concentrated. Flash chromatography (hexanes/ethyl acetate, 4: 1) then afforded the title compound (0.76 g, 85%) as a yellow solid: MS [(ES) M/Z] 222 [(M+H) + ; LH] NMR (400 MHz, [CDC13)] 88. 14 (d, J= 8.0 Hz, 1 H), 7.53 (d, J= 7.2 Hz, 1H), 7.28 (m, 1 H), 7.04 [(M,] 1 H), 6.51 (brs, 2 H), 4.45 (q, [J= 7. 2 HZ, 2 H),] 1.50 (t, [J= 7. 2 HZ, 3 H).]
55% With pyrrolidine; In toluene; at 100℃; for 23.0h; To a stirred suspension of 2-acetylamino-benzo [b] thiophene-3-carboxylic acid ethyl ester (Compound No. 516 of Table 134, prepared as described in Example 27; 85mg, 0.323 mmol) in toluene (15ml) was added pyrrolidine (400u. l). The reaction mixture was heated at 100C for 6 hours, then further pyrrolidine (400u. l) was added and heating continued at 100C for 17 hours. The mixture was allowed to cool to room temperature, quenched with brine and extracted with ether. The combined organic extracts were dried over magnesium sulphate and evaporated to dryness under reduced pressure to give an off- white solid (104mg). Chromatography of the crude material, using 20% ether in hexane (by volume) as eluant, gave the desired product as a white solid (39mg, 55%). 'H NMR 8H (400MHz, CDC13) : 8.10 (1H, d), 7.50 (1H, d), 7.30 (1H, t), 7.10 (1H, t), 6.50 (2H, br s), 4.40 (2H, q) and 1.45 (3H, t) ppm.
 

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