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Chemical Structure| 40316-60-7 Chemical Structure| 40316-60-7

Structure of 40316-60-7

Chemical Structure| 40316-60-7

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Product Details of [ 40316-60-7 ]

CAS No. :40316-60-7
Formula : C9H10OS
M.W : 166.24
SMILES Code : OC1CCSC2=C1C=CC=C2
MDL No. :MFCD00006883

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Application In Synthesis of [ 40316-60-7 ]

* 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 [ 40316-60-7 ]

[ 40316-60-7 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 3528-17-4 ]
  • [ 40316-60-7 ]
YieldReaction ConditionsOperation in experiment
Example 31 N- [ (l S, 1 aR, 7bR) or (1R, 1aS. 7bS)-1. 1a. 2, 7b-tetrahvdrocvclopronafc1- [1]benzothiopyran-1-yl]-N'-(5-cyano-2-pyridinyl) urea a) 3, 4-dihydro-2H-1-benzothiopyran-4-ol A solution of thiochroman-4-one (9g) in ether (27 ml) was added slowly to a mixture of lithium aluminium hydride (0.53 g) in ether (54 ml). After the end of the addition, the mixture was refluxed for 2 hours. The reaction mixture was cooled and ice was added, followed by water and by a solution of 20% H2SO4. The water phase was washed twice with ether. The ether phase was washed twice with NaOH 2N, and once with water, dried over MgSO4 and evaporated. The clear oil (8.9 g) crystallised after few hours. Rdt = 97%
To a solution of thiochroman-4-one (9.95 g, 60.6 mmol) in anhydrous ethanol (73 mL) was added sodium borohydride (2.29 g) in small portions. The reaction mixture was stirred at room temperature for 1 h, evaporated to dryness, and treated with ice-water. The aqueous layer was acidified (pH ~2), and extracted into ethyl acetate (3 x 100 mL). The combined organic layers were washed with water (1 x 50 ml) and brine (1 x 50 mL), dried (MgSO4), and concentrated to give 9.32 g of compound aa;1H-NMR (DMSO-d6) δ 7.35 - 6.83 (m, 4H), 5.32 (br s, 1H), 4.59 (m, 1H), 3.32 - 3.13 (m, 1H), 2.95 - 2.89 (m, 1H), 2.12 - 2.05 (m, 1H), 1.99-1.92 (m, 1H). Compound aa was converted to compound cc via compound bb following the same procedure in Example 20.
With sulfuric acid; In water monomer; a 3,4-dihydro-2H-1-benzothiopyran-4-ol A solution of thiochroman-4-one (9 g) in ether (27 ml) was added slowly to a mixture of lithium aluminium hydride (0.53 g) in ether (54 ml). After the end of the addition, the mixture was refluxed for 2 hours. The reaction mixture was cooled and ice was added, followed by water and by a solution of 20% H2SO4. The water phase was washed twice with ether. The ether phase was washed twice with NaOH 2N, and once with water, dried over MgSO4 and evaporated. The clear oil (8.9 g) crystallized after few hours. Rdt=97%
 

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