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Chemical Structure| 274682-80-3

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Product Details of [ 274682-80-3 ]

CAS No. :274682-80-3
Formula : C11H20N2O2S
M.W : 244.35
SMILES Code : O=C(N1CC(C(N)=S)CCC1)OC(C)(C)C
MDL No. :MFCD10700060

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Application In Synthesis of [ 274682-80-3 ]

* 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 [ 274682-80-3 ]

[ 274682-80-3 ] Synthesis Path-Downstream   1~4

  • 1
  • [ 91419-49-7 ]
  • [ 274682-80-3 ]
YieldReaction ConditionsOperation in experiment
80% With tetraphosphorus decasulfide; sodium carbonate; In tetrahydrofuran; at 20℃; for 1.5h;Inert atmosphere; To a flask under nitrogen was added P4Si0 (4.4 g, 1 mmol), THF (100 mL) and Na2C03 (1.06 g, 1 mmol). The mixture was vigorously stirred for 15 min after which time a solution of compound 15.2 (2.28 g, 1 mmol) in THF (200 mL) was added. The resulting mixture was stirred at RT for 1.5 h and then diluted with 10% Na3PC>4 (100 mL) and extracted with EtOAc (2 x 200 mL). The combined organic phases were washed with water, brine, dried (MgSC^), filtrated and concentrated in vacuo to afford compound 15.3 as a white solid (1.90 g, 80%).
With Lawessons reagent; In toluene; at 62℃; for 4h; tert-Butyl 3-carbamothioyIpiperidine-l-carboxylate (92):Amide 91 (2.0 g, 8.76 mmol) and Lawesson's reagent (1.79 g, 4.42 mmol) were stirred in toluene (45 niL) and the mixture heated to 62 C for 4 hours. The mixture was treated with 5 g of silica gel and 15 mL of methanol, and evaporated to dryness. The solid residue was chromatographed over 30 g of silica gel, eluting with CH2Cl2IMeOH (96:4). The product was chromatographed again, eluting with CH2CbMeOH (97:3) and dried to 1.33 g of 92 as a white foam. MS (ESI) m/z 283 [M+K]+. 1H NMR (CDCl3) delta 1.30-1.50 (m, 10 H), 1.55-1.65 (bs, IH), 1.9-2.0 (m, IH), 2.0-2.2 (m, IH), 2.60-2.75 (bs, IH), 3.0-3.2 (bs, IH), 3.3-3.45 (bs, IH), 3.6-3.95 (m, 2H), 7.43 (bs, 2H).
With Lawessons reagent; In toluene; at 62℃; for 4h; tert-Butyl 3-carbamothioylpiperidine-l-carboxylate (9AA):Amide 8AA (2.0 g, 8.76 mmol) and Lawesson's reagent (1.79 g, 4.42 mmol) were stirred in toluene (45 mL) and the mixture heated to 62 C for 4 hours. The mixture was treated with 5 g of silica gel and 15 mL of methanol, and evaporated to dryness. The solid residue was chromatographed over 30 g of silica gel, eluting with CH2Cl2:MeOH (96:4). The product was chromatographed again, eluting with CH2Cl2:MeOH (97:3) and dried to 1.33 g of 2 as a white foam. MS (ESI) m/z 283 [M+K]+. NMR (CDC13) delta 1 .30-1.50 (m, 10 H), 1.55-1.65 (bs, 1H), 1.9-2.0 (m, 1H), 2.0-2.2 (m, 1H), 2.60-2.75 (bs, 1H), 3.0-3.2 (bs, 1H), 3.3-3.45 (bs, 1H), 3.6-3.95 (m, 2H), 7.43 (bs, 2H).
With Lawessons reagent; In toluene; at 62℃; for 4h; Amide 8AA (2.0 g, 8.7 mmol) and Lawessoa's reagent (1 .79 g, 4.42 mmol) were stirred -in toluene (45 ml) and the mixture heated to 62 C for 4 hours. The mixture was treated with 5 g of silica gel and 15 mL of methanol, and e v aporated to dryness. The .solid residue, was The product was cbromatographed again, elating with?¾¾:Muepsilon (97:3) and dried to 1.33 g of 2 as a white foam. MS (ESI) m z 283 M-f l NMR (CDC¾) delta 1.30-1.50 (m, 10 II). 1.55-1.65 (bs, 1H), 1.9-2.0 ( , I B), 2.0-2.2 (m, IH), 2.60-2.75 (bs, IH), 3.0-3.2 (bs, ,1 H), 3.3-3.45 (bs, 1 H), 3.6- 3.95 (m, 2H), 7.43 (bs/2H).

  • 2
  • [ 274682-80-3 ]
  • [ 162167-97-7 ]
  • 4
  • [ 1001-26-9 ]
  • [ 274682-80-3 ]
  • [ 1271809-10-9 ]
YieldReaction ConditionsOperation in experiment
To a solution of the unsaturated ester (1.44 g) in water and dioxane(1 : 1 , 10 mL) was added NBS (1.95 g) at 0 °C. After stirring at RT for 1 h, the thioamide (1.22 g) was added, and the mixture was heated at 100 °C for 1 h. The solution was concentrated in vacuo, and the residue purified by reverse phase column chromatography (50percent EtOAc) to give thiazole 18.1.
 

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