Trifluoroborane-methyl sulfide → HCID 45483012, compound

HRID 2390783Notes

Reaction equation

HRID 2390783 reaction equation
B(F)(F)F.CSC.C[O:9][C:10]1[CH:11]=[C:12]([C:17]2[N:21]([CH2:22][C:23]#[N:24])[N:20]=[CH:19][C:18]=2[C:25]2[CH:30]=[CH:29][N:28]=[C:27]([C:31]3[CH:36]=[CH:35][C:34]([O:37][C:38]4[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=4)=[CH:33][CH:32]=3)[CH:26]=2)[CH:13]=[C:14]([CH3:16])[CH:15]=1>ClCCl>[OH:9][C:10]1[CH:11]=[C:12]([C:17]2[N:21]([CH2:22][C:23]#[N:24])[N:20]=[CH:19][C:18]=2[C:25]2[CH:30]=[CH:29][N:28]=[C:27]([C:31]3[CH:36]=[CH:35][C:34]([O:37][C:38]4[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=4)=[CH:33][CH:32]=3)[CH:26]=2)[CH:13]=[C:14]([CH3:16])[CH:15]=1

Participants

4

Reactant 2

HCID 11137191Trifluoroborane-methyl sulfideHCID 45482636HCID 45482636, compound

Product 1

HCID 45483012HCID 45483012, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Borontrifluoride-dimethylsulfide (0.13 mL, 1.2 mmol) was dropwise added to a solution of the methoxy compound (56.7 mg, 0.12 mmol) prepared in Example 42 in dichloromethane (4 mL) at room temperature under nitrogen atmosphere, and stirred for 24 hours. The reaction mixture was concentrated by vacuum distillation. The residue was treated in ethyl acetate (100 mL) and brine (50 mL) and the organic layer was dried over anhydrous magnesium sulfate and distilled under vacuum. Purification through column chromatography (silica gel, ethyl acetate) afforded pure hydroxy products (34 mg, 61%).

Workup

  1. concentrationThe reaction mixture was concentrated by vacuum distillation
  2. additionThe residue was treated in ethyl acetate (100 mL)
  3. dry with materialbrine (50 mL) and the organic layer was dried over anhydrous magnesium sulfate
  4. distillationdistilled under vacuum
  5. customPurification through column chromatography (silica gel, ethyl acetate)
  6. customafforded pure hydroxy products (34 mg, 61%)

Sources & evidence

ORD record
ord-d08445f464ed4d8c8dc2c3e9ccb1798a
Source dataset
uspto-grants-2012_09
Patent number
US08273880B2

Reaction notes

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