Thiophenyl acetate → HCID 86722000, compound

HRID 1398030Notes

Reaction equation

HRID 1398030 reaction equation
N1([C:10]([CH:12]2[CH2:17][C:16]([CH3:19])([CH3:18])[O:15][C:14]([CH3:21])([CH3:20])[CH2:13]2)=[O:11])C2C=CC=CC=2N=N1.CCOCC.[Mg+2].[Br-].[Br-].[C:30]([S:33][C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)(=[O:32])[CH3:31].CCN(C(C)C)C(C)C>C(Cl)Cl>[C:34]1([S:33][C:30](=[O:32])[CH2:31][C:10](=[O:11])[CH:12]2[CH2:13][C:14]([CH3:20])([CH3:21])[O:15][C:16]([CH3:18])([CH3:19])[CH2:17]2)[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1

Participants

6

Reactant 4

HCID 13630Thiophenyl acetateHCID 81531DiisopropylethylamineHCID 9903262Magnesium bromide diethyl etherateHCID 86721999Benzotriazol-1-yl-(2,2,6,6-tetramethyl-tetrahydro-pyran-4-yl)-methanone

Product 1

HCID 86722000HCID 86722000, compoundYield 70%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a mixture of benzotriazol-1-yl-(2,2,6,6-tetramethyl-tetrahydro-pyran-4-yl)-methanone (1.70 g, 5.62 mmol), magnesium bromide diethyl etherate (4.14 g, 16.06 mmol), and S-phenyl thioacetate (0.76 mL, 5.35 mmol) in 21 mL of DCM at RT was added dropwise DIEA (3.95 mL, 21.41 mmol). The mixture was stirred overnight and then diluted with 50 mL of DCM and washed with 1N HCl (100 mL) and brine (100 mL). The organic layer was dried over Na2SO4, concentrated, and the residue purified by flash chromatography on silica gel to give 1.2 g (70%) of a colorless oil. Mass spectrum (ESI, m/z): Calculated for C18H24O3S, 321.1 (M+H), found 321.1.

Workup

  1. washwashed with 1N HCl (100 mL) and brine (100 mL)
  2. dry with materialThe organic layer was dried over Na2SO4
  3. concentrationconcentrated
  4. customthe residue purified by flash chromatography on silica gel

Sources & evidence

ORD record
ord-6e58a00dde9744429f0684c3aa76e09d
Source dataset
uspto-grants-2014_12
Patent number
US08901314B2

Reaction notes

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