Tetrahydrofuran → 5-[4-(cyclopropylsulfonyl)phenyl]-1-[5-(1-hydroxy-2-methoxyethyl)-1,3-thiazol-2-yl]-6-(tetrahydro-2H-pyran-4-yl)hexane-1,4-dione

HRID 1881877Notes

Reaction equation

HRID 1881877 reaction equation
[CH:1]1([S:4]([C:7]2[CH:12]=[CH:11][C:10]([CH:13]([CH2:18][CH:19]3[CH2:24][CH2:23][O:22][CH2:21][CH2:20]3)[C:14](=[O:17])[CH:15]=[CH2:16])=[CH:9][CH:8]=2)(=[O:6])=[O:5])[CH2:3][CH2:2]1.[OH:25][CH:26]([C:30]1[S:34][C:33]([CH:35]=[O:36])=[N:32][CH:31]=1)[CH2:27][O:28][CH3:29].C(N(CC)CC)C.O1CCCC1>[Cl-].C([N+]1C(C)=C(CCO)SC=1)C1C=CC=CC=1.C(O)C>[CH:1]1([S:4]([C:7]2[CH:8]=[CH:9][C:10]([CH:13]([CH2:18][CH:19]3[CH2:24][CH2:23][O:22][CH2:21][CH2:20]3)[C:14](=[O:17])[CH2:15][CH2:16][C:35]([C:33]3[S:34][C:30]([CH:26]([OH:25])[CH2:27][O:28][CH3:29])=[CH:31][N:32]=3)=[O:36])=[CH:11][CH:12]=2)(=[O:6])=[O:5])[CH2:3][CH2:2]1

Participants

7

Reactant 4

HCID 8028TetrahydrofuranHCID 8471TriethylamineHCID 593312584-[4-(cyclopropylsulfonyl)phenyl]-5-(tetrahydro-2H-pyran-4-yl)pent-1-en-3-oneHCID 593316105-(1-Hydroxy-2-methoxyethyl)-1,3-thiazole-2-carbaldehyde

Product 1

HCID 593314835-[4-(cyclopropylsulfonyl)phenyl]-1-[5-(1-hydroxy-2-methoxyethyl)-1,3-thiazol-2-yl]-6-(tetrahydro-2H-pyran-4-yl)hexane-1,4-dioneYield 95%

Reagents, catalysts & solvents 2

HCID 28333523-Benzyl-5-(2-hydroxyethyl)-4-methylthiazolium chlorideCatalystHCID 702EthanolSolvent

Procedure

A mixture of 4-[4-(cyclopropylsulfonyl)phenyl]-5-(tetrahydro-2H-pyran-4-yl)pent-1-en-3-one (1.00 g), 5-(1-hydroxy-2-methoxyethyl)-1,3-thiazole-2-carbaldehyde (0.56 g), 3-benzyl-5-(2-hydroxyethyl)-4-methyl-1,3-thiazol-3-ium chloride (77 mg), triethylamine (0.16 mL), tetrahydrofuran (6 mL) and ethanol (6 mL) was stirred with heating under reflux for 2 hr. The reaction mixture was concentrated, the residue was subjected to basic silica gel column chromatography, and eluted with ethyl acetate, and the fraction was concentrated. The residue was subjected to silica gel column chromatography, and the title compound (1.46 g, yield 95%) was obtained as a colorless oil from a fraction eluted with ethyl acetate-hexane (9:1, volume ratio). MS: 536 (MH+).

Workup

  1. temperaturewith heating
  2. temperatureunder reflux for 2 hr
  3. concentrationThe reaction mixture was concentrated
  4. washeluted with ethyl acetate
  5. concentrationthe fraction was concentrated

Sources & evidence

ORD record
ord-0784138339054f078248840c08bd8b1b
Source dataset
uspto-grants-2012_11
Patent number
US08318746B2

Reaction notes

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