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Chemical Structure| 486422-11-1 Chemical Structure| 486422-11-1

Structure of 486422-11-1

Chemical Structure| 486422-11-1

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Product Details of [ 486422-11-1 ]

CAS No. :486422-11-1
Formula : C11H17BN2O4S
M.W : 284.14
SMILES Code : OB(C1=CC=C(S(=O)(N2CCN(C)CC2)=O)C=C1)O
MDL No. :MFCD12031677

Safety of [ 486422-11-1 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H312-H332
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P330-P363-P501

Application In Synthesis of [ 486422-11-1 ]

* 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 [ 486422-11-1 ]

[ 486422-11-1 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 837-12-7 ]
  • [ 486422-11-1 ]
YieldReaction ConditionsOperation in experiment
61% 4-(4-Methylpiperazin-l-ylsulfonyl)phenylboronic acidA solution of the starting bromide (1.00 g, 3.13 mmol) in dry tetrahydrofuran (10 mL) was cooled to -78C, followed by the dropwise addition of nBuLi (1.6 M in hexane , 9.78 mL, 15.66 mmol), whilst maintaining the temperature below -78C. The resulting reaction mixture was allowed to stir at -78C for 1 h. Triisopropyl borate (3.60 mL, 15.66 mmol) was added dropwise at -78C and stirred further for 45 min at -78C. The reaction mixture was allowed to warm to room temperature and stirred for an additional 12 h. A solution of NaOH (0.19 g, 4.70 mmol) in water (10 mL) was added and the reaction was then stirred for a further 12 h, at which time tetrahydrofuran was removed under reduced pressure. The pH was adjusted to 1 1 with HCl solution (1M) and the resulting solution extracted with ethyl acetate (3 x 5 mL) to recover the starting material. Then the pH was adjusted to 7 with HCl solution (1M) and the product extracted with ethyl acetate (3 x 5 mL), dried (MgS04) and concentrated under reduced pressure to give a colourless solid which was used without further purification (0.54 g, 61%); 1H NMR (400 MHz, DMSO-d6): δ 8.36 (bs, 2H), 8.02 (d, 2H, J = 8.0Hz), 7.69 (d, 2H, J = 8.0Hz), 2.94 (bs, 4H), 2.57 (bs, 4H) and 2.24 (s, 3H); 13C NMR (400 MHz, DMSO-d6): δ 136.0, 134.9, 134.7, 126.3, 53.1, 45.2 and 44.7. LC-MS APCI: Calculated for C11H17BN2O4S, 284; Observed m/z 284 [M]+.
58% Triisopropyl borate (0.64 ML, 2.8 mmol) was added to a solution of 1- [ (4- bromophenyl) sulfonyl] -4-methylpiperazine (0.602 g, 1.9 mmol; described: in Keasling, H. H. et el. J. Med. Chez. 1965, 8, 548-550) in anhydrous tetrahydrofuran (7 mL) at-78 C under a nitrogen atmosphere followed by dropwise addition of n-butyllithium (1.4 mL, 2.2 mmol). The resulting mixture was stirred at-78 C for 2 h and at room temperature for another 16 h. Water (2.0 mL) was added and the mixture stirred for 30 min and evaporated to dryness. The residue was pre-adsorbed onto silica and purified by column chromatography using methylene chloride/methanol, (9: 1 to 1: 9), as the eluent. The product was re-crystallized from water to give 311 mg (58% yield) of the title compound as white crystals: mp 215-218 C ; 1H NMR (DMSO-d6,400 MHz) 8 10.89 (br s, 1 H), 8.47 (BR S, 2 H), 8.05 (d, J = 8 HZ, 2 H), 7.73 (d, J = 8 HZ, 2 IT), 3.77 (m, 2 H), 3.40 (m, 2 H), 3.13 (m, 2 H), 2.71 (s, 3 H), 2.65 (m, 2 H); 13C NMR (DMSO-d6,100 MHz) 8 133. 7, 133.3, 124.7, 49.8, 41.6, 41.4 ; MS (TSP) m/z 285 (M++1).
58% With n-butyllithium; Triisopropyl borate; In tetrahydrofuran; at -78 - 20℃; for 18h; Triisopropyl borate (0.64 ML, 2.8 mmol) was added to a solution of 1- [ (4- bromophenyl) sulfonyl] -4-methylpiperazine (0.602 g, 1.9 mmol; described: in Keasling, H. H. et el. J. Med. Chem. 1965, 8, 548-550) in anhydrous tetrahydrofuran (7 mL) at-78 C under a nitrogen atmosphere followed by dropwise addition of n-butyllithium (1.4 mL, 2.2 mmol). The resulting mixture was stirred at-78 C for 2 h and at room temperature for another 16 h. Water (2.0 mL) was added and the mixture stirred for 30 min and evaporated to dryness. The residue was pre-adsorbed onto silica and purified by column chromatography on silica using methylene CHLORIDE/METHANOL, (9: 1 to 1: 9), as the eluent. The product was re-crystallized from water to give 311 mg (58% yield) of the title compound as white crystals: mp 215-218 C ; 1H NMR (DMSO-d6,400 MHz) 8 8.47 (br s, 2 H), 8.05 (d, J = 8 Hz, 2 H), 7.73 (d, J = 8 HZ, 2 H), 3.77 (m, 2 H), 3.40 (m, 2 H), 3.13 (m, 2 H), 2.71 (s, 3 H), 2.65 (m, 2 H) ; 13C NMR (DMSO-d6,100 MHz) 8 133.7, 133.3, 124.7, 49.8, 41.6, 41.4 ; MS (TSP) M/Z 285 (M++1).
 

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