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Chemical Structure| 53174-98-4 Chemical Structure| 53174-98-4
Chemical Structure| 53174-98-4

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CAS No.: 53174-98-4

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Product Details of [ 53174-98-4 ]

CAS No. :53174-98-4
Formula : C8H5NOS
M.W : 163.20
SMILES Code : O=CC1=CC2=CC=CN=C2S1
MDL No. :MFCD07772791
InChI Key :HGZQKYOLRLVMHZ-UHFFFAOYSA-N
Pubchem ID :289925

Safety of [ 53174-98-4 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H317-H319
Precautionary Statements:P280-P305+P351+P338

Application In Synthesis of [ 53174-98-4 ]

* 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 [ 53174-98-4 ]

[ 53174-98-4 ] Synthesis Path-Downstream   1~27

  • 1
  • [ 272-23-1 ]
  • [ 68-12-2 ]
  • [ 53174-98-4 ]
YieldReaction ConditionsOperation in experiment
66% Thieno[2,3-b]pyridine-2-carbaldehyde: In an atmosphere of argon a mixture of 1.3 mL (2.08 mmol) of 0.8 M n-butyllithium in hexane and 0.3 mL (3.3 mmol) of N,N,N?,N?-tetramethylethylenediamine was stirred magnetically at room temperature for 30 minutes, diluted with 5 mL of hexane, cooled in a bath of dry ice-ethanol, and treated (with vigorous stirring) dropwise (from a syringe with a small needle) with 0.23 g (1.7 mmol) of thieno[2,3-b] pyridine. The mixture was stirred in the bath for 7 h longer and then for 12 h while it warmed to room temperature. It was cooled in ice, treated with 0.15 g (2.1 mmol) of dimethylformamide, stirred for one hour, and then treated successively with 1 mL of ethanol, 3 mL of saturated aqueous ammonium chloride solution, and 4 mL of water. The layers were separated. The organic layer (plus chloroform extracts of the aqueous layer) was dried (magnesium sulfate) and evaporated. The residue was triturated with hexane to give 0.18 g (66%) of brown solid; m.p. 131.5-132.5 C. Recrystallizations from ethanol (once with charcoal) gave white needles. 1H NMR (300 MHz, CDCl3) ppm 7.41 (dd, J = 4.5 Hz, 8.1 Hz, 1 H), 7.99 (s, 1 H), 8.24 (dd, J = 1.8 Hz, 8.1 Hz, 1 H), 8.73 (dd, J = 1.8 Hz, 4.5 Hz, 1 H), 10.12 (s, 1 H). 13C NMR (75 MHz, CDCl3) ppm 120.7, 131.8, 132.3, 134.0, 143.2, 150.5, 163.8, 185.0. IR (CHCl3, cm-1) 1682 (C=O). MS (EI, 70 eV): m/z [%] = 162[M]+ (100), 134[M-CO]+ (26). HRMS (FAB+) calculated for C8H6NOS [M+1] 164.0170, found 164.0167.
  • 2
  • [ 75-52-5 ]
  • [ 53174-98-4 ]
  • [ 53175-07-8 ]
  • 3
  • [ 7306-64-1 ]
  • [ 53174-98-4 ]
  • [ 156736-78-6 ]
  • 4
  • [ 35023-80-4 ]
  • [ 53174-98-4 ]
  • [ 156736-72-0 ]
  • 5
  • [ 53174-98-4 ]
  • [ 131337-81-0 ]
YieldReaction ConditionsOperation in experiment
With sodium borohydrid; In ethanol; EXAMPLE N 2-Chloromethyl-thieno[2,3-b]pyridine Thieno[2,3-b]pyridine-2-carboxaldehyde (1.63 g) prepared according to J. Het. Chem. 355 (1974) was dissolved in ethanol (20 ml) and to the solution was added sodium borohydride (0.19 g). After 30 minutes the solution was evaporated to dryness and the residue extracted with methylene chloride (50 ml). The organic extract was washed with water (2*25 ml), the extract dried and then evaporated to obtain 2-hydroxymethylthieno[2,3-b]pyridine (1.40 g) as an amber oil. 'H-NMR (CDCl3,60 MHz): 4.9 (s, 1H), 6.3 (s, 1H), 6.9 s, 1H), 7.1 (m, 1H), 7.8 (m, 1H), 8.4 (m, 1H).
  • 6
  • [ 53174-98-4 ]
  • [ 14131-84-1 ]
  • C20H24N2O6S [ No CAS ]
  • 7
  • [ 53174-98-4 ]
  • C28H26NO2PS [ No CAS ]
  • 6-carboethoxy-2-methyl-4-(2'-thieno<2,3-b>pyridine)thieno<3,2-c>pyridine [ No CAS ]
  • 8
  • [ 53174-98-4 ]
  • [ 150323-38-9 ]
  • N-(2(R)-hydroxy-1(S)-indanyl)-2(R)-phenylmethyl-4(S)-hydroxy-5-(1-(4-(2-thieno[2,3-b]pyridylmethyl)-2(S)-N'-(tert-butylcarboxamido)piperazinyl))pentanamide [ No CAS ]
  • 9
  • [ 53174-98-4 ]
  • N-((R)-1-Thieno[2,3-b]pyridin-2-yl-ethyl)-hydroxylamine [ No CAS ]
  • 10
  • [ 53174-98-4 ]
  • C10H11N3O2S [ No CAS ]
  • 11
  • [ 53174-98-4 ]
  • N-[(3aR,4R,6S,6aR)-6-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-N-((R)-1-thieno[2,3-b]pyridin-2-yl-ethyl)-hydroxylamine [ No CAS ]
  • 12
  • [ 53174-98-4 ]
  • N-[(3aR,4R,6S,6aR)-6-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-N-((S)-1-thieno[2,3-b]pyridin-2-yl-ethyl)-hydroxylamine [ No CAS ]
  • 13
  • [ 53174-98-4 ]
  • [ 156736-77-5 ]
  • 15
  • [ 53174-98-4 ]
  • [ 124168-21-4 ]
  • 16
  • [ 53174-98-4 ]
  • [ 124168-24-7 ]
  • 17
  • [ 6926-58-5 ]
  • [ 53174-98-4 ]
  • [ 1035162-89-0 ]
  • 18
  • [ 79-19-6 ]
  • [ 53174-98-4 ]
  • [ 1035162-87-8 ]
  • 19
  • [ 53174-98-4 ]
  • [ 1402598-26-8 ]
  • 20
  • [ 53174-98-4 ]
  • [ 1402598-27-9 ]
  • 21
  • [ 53174-98-4 ]
  • [ 1402598-28-0 ]
  • 22
  • [ 53174-98-4 ]
  • [ 1402598-29-1 ]
  • 23
  • [ 53174-98-4 ]
  • [ 1402598-30-4 ]
  • 24
  • [ 874842-53-2 ]
  • [ 53174-98-4 ]
  • [ 1402599-37-4 ]
YieldReaction ConditionsOperation in experiment
With Montmorillonite K 10; In toluene; for 5h;Reflux; A 100 mL round-bottomed flask was charged with thieno[2,3-b]pyridine- 2-carbaldehyde (1.0 g, 6.1 mmol, Maybridge, Tintagel, United Kingdom), 3,4- dihydro-2H-l,5-benzodioxepine-7-sulfonamide (1.4 g, 6.1 mmol, Enamine, Kiev, Ukraine), Montmorillonite K 10 (1.4 g, Sigma- Aldrich, St. Louis, MO), and toluene (31 mL), fitted with a Dean-Stark trap and a reflux condenser, and then the reaction mixture was heated at reflux for 5 h. After that time, the reaction mixture was filtered, the filtrate was allowed to cool to room temperature, filtered, and the filter cake was collected to give N-(thieno[2,3-b]pyridin-2- ylmethylidene)-3,4-dihydro-2H-l,5-benzodioxepine-7-sulfonamide (1.1 g) as pale, peach-colored solid.
  • 25
  • [ 1351282-48-8 ]
  • [ 53174-98-4 ]
  • [ 1351929-87-7 ]
YieldReaction ConditionsOperation in experiment
40% With sodium metabisulfite; In water; isopropyl alcohol; at 170.0℃; for 0.166667h;Microwave irradiation; A mixture of 4-(2-(Pyridin-4-yl)-1H-benzo[d]imidazol-5-yl)benzene-1,2-diamine (intermediate A) (50 mg, 0.17 mmol), <strong>[53174-98-4]thieno[2,3-b]pyridine-2-carbaldehyde</strong> (33 mg, 0.20 mmol) and Na2S2O5 (38 mg. 0.20 mmol) in IPA-H2O (3:1, 8 mL) was heated under microwave radiation for 170 C. for 10 min. The mixture was absorbed onto silica and purified by column chromatography eluting with (95:5 EtOAc-MeOH to 85:15 EtOAc-MeOH) afforded the title compound as a yellow solid (30 mg, 0.07mmol, 40%).[0324]LCMS RT=1.38min, MH+ 445.1; 1H NMR (MeOD): 8.74 (2H, dd, J 4.7 and 1.6), 8.58 (1H, dd, J 4.7 and 1.6), 8.31 (1H, dd, J 8.1 and 1.6), 8.10 (2H, dd, J 4.7 and 1.6), 7.78 (1H, s), 7.90-7.62 (6H, m) and 7.48 (1H, dd, J 8.1 and 4.7).
  • 26
  • N-[4-(trans-2-aminocyclopropyl)phenyl]-3-(trifluoromethyl)benzamide hydrochloride [ No CAS ]
  • [ 53174-98-4 ]
  • N-(4-{trans-2-[(thieno[2,3-b]pyridin-2-ylmethyl)amino]cyclopropyl}phenyl)-3-(trifluoromethyl)benzamide hydrochloride [ No CAS ]
YieldReaction ConditionsOperation in experiment
Example 161 N-(4-{trans-2-[(thieno[2,3-b]pyridin-2-ylmethyl)amino]cyclopropyl}phenyl)-3-(trifluoromethyl)benzamide hydrochloride By a method similar to Example 65, the title compound (10 mg) was obtained from N-[4-(trans-2-aminocyclopropyl)phenyl]-3-(trifluoromethyl)benzamide hydrochloride (75 mg) and <strong>[53174-98-4]thieno[2,3-b]pyridine-2-carbaldehyde</strong> (44.6 mg). MS (API+): [M+H]+ 468.0. 1H NMR (300 MHz, CD3OD) delta 1.36-1.57 (2H, m), 2.41 (1H, ddd, J = 10.2, 6.5, 3.7 Hz), 3.01 (1H, dt, J = 7.6, 4.0 Hz), 4.73 (2H, s), 7.07 (2H, d, J = 8.7 Hz), 7.44-7.54 (2H, m), 7.61 (2H, d, J = 8.7 Hz), 7.70-7.79 (1H, m), 7.90 (1H, d, J = 7.9 Hz), 8.15-8.30 (3H, m), 8.58 (1H, dd, J = 4.7, 1.5 Hz).
  • 27
  • [ 53174-98-4 ]
  • [ 1313722-59-6 ]
 

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