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[ CAS No. 2510-37-4 ]

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Chemical Structure| 2510-37-4
Chemical Structure| 2510-37-4
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CAS No. :2510-37-4 MDL No. :MFCD06011090
Formula : C6H7NO3 Boiling Point : 378°C at 760 mmHg
Linear Structure Formula :- InChI Key :N/A
M.W :141.12 g/mol Pubchem ID :1132979
Synonyms :

Safety of [ 2510-37-4 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P261-P305+P351+P338 UN#:N/A
Hazard Statements:H302-H315-H319-H335 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 2510-37-4 ]

  • Upstream synthesis route of [ 2510-37-4 ]
  • Downstream synthetic route of [ 2510-37-4 ]

[ 2510-37-4 ] Synthesis Path-Upstream   1~4

  • 1
  • [ 23012-30-8 ]
  • [ 2510-37-4 ]
YieldReaction ConditionsOperation in experiment
45%
Stage #1: With methanol; lithium hydroxide; water In tetrahydrofuran at 0 - 20℃;
Stage #2: With hydrogenchloride In tetrahydrofuran; water at 0 - 20℃;
To a solution of 2,4-dimethyl-oxazole-5-carboxylic acid ethyl ester (1.8 g, 10.6 mmol) in THF (20 mL) cooled in an ice bath was added a solution of LiOH.H2O (0.98 g, 23 mmol) in H2O (20 mL), followed by MeOH (10 mL). The reaction was stirred in the ice bath and allowed to come to rt overnight. The solution was concentrated in vacuuo. The aqueous solution was cooled in an ice bath and brought to pH 3 with the addition of 2 N HCl. The white precipitate was collected by filtration and dried in vacuuo to afford the acid as a white powder (0.67 g, 45percent). MS (ESI-POS): [M+H]+=142. The crude acid (49 mg, 0.35 mmol) was combined with the piperazinylbenzimidazole (101 mg, 0.30 mmol), HATU (133 mg, 0.35 mmol), and DIEA (60 μL, 0.36 mmol) in NMP (6 mL) and the solution was stirred at rt for 48 h. To the solution was added EtOAc (50 mL) and H2O (15 mL) and the layers were separated. The organic layer was washed with H2O (8.x.15 mL) and brine (20 mL), dried (Na2SO4), filtered, and concentrated. The residue was purified using silica gel chromatography, eluting with a gradient of 2percent MeOH/CH2Cl2 to 3percent MeOH/CH2Cl2 to afford the amide (90 mg, 65percent) as a white powder. 1H NMR 300 MHz (CDCl3): δ=9.38 (s, 1 H), 7.97 (d, J=8.4 Hz, 2H), 7.52 (d, J=8.4 Hz, 2H), 7.17 (t, J=7.8 Hz, 1H), 7.11 (d, J=7.9 Hz, 1H), 6.65 (d, J=7.8 Hz, 1H), 4.01 (bs, 4H), 3.67 (bs, 4H), 2.49 (s, 3H), 2.39 (s, 3H), 1.37 (s, 9H). MS (ESI-POS): [M+H]+=4.59. Anal. Calc. for C27H31N5O2 0.2 CH2Cl2: C, 68.84; H, 6.67; N, 14.67. Found: C, 68.99; H, 6.87; N, 14.56.
Reference: [1] Patent: US2006/19965, 2006, A1, . Location in patent: Page/Page column 22-23
[2] Patent: US2006/19965, 2006, A1, . Location in patent: Page/Page column 77-80
  • 2
  • [ 55-21-0 ]
  • [ 18632-42-3 ]
  • [ 2510-37-4 ]
  • [ 91137-55-2 ]
Reference: [1] Yakugaku Zasshi, 1956, vol. 76, p. 307[2] Chem.Abstr., 1956, p. 13874
  • 3
  • [ 103-81-1 ]
  • [ 18632-42-3 ]
  • [ 2510-37-4 ]
Reference: [1] Yakugaku Zasshi, 1956, vol. 76, p. 307[2] Chem.Abstr., 1956, p. 13874
  • 4
  • [ 23000-15-9 ]
  • [ 2510-37-4 ]
Reference: [1] Journal of the Chemical Society, 1953, p. 93,95
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