Tetrabutylammonium Fluoride → [5-(4-Fluoro-phenyl)-2-(2-hydroxy-phenyl)-[1,3,4]thiadiazol-3-yl]-(2,4,6-trifluoro-phenyl)-methanone

HRID 1046939Notes

Reaction equation

HRID 1046939 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[S:12][CH:11]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[O:19][Si](C(C)C)(C(C)C)C(C)C)[N:10]([C:30]([C:32]3[C:37]([F:38])=[CH:36][C:35]([F:39])=[CH:34][C:33]=3[F:40])=[O:31])[N:9]=2)=[CH:4][CH:3]=1.FC1C=CC(C2SC(C3C=CC=C(OC)C=3O[Si](C(C)C)(C(C)C)C(C)C)N(C(C3C(F)=CC(F)=CC=3F)=O)N=2)=CC=1.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[S:12][CH:11]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[OH:19])[N:10]([C:30]([C:32]3[C:37]([F:38])=[CH:36][C:35]([F:39])=[CH:34][C:33]=3[F:40])=[O:31])[N:9]=2)=[CH:4][CH:3]=1

Participants

4

Reactant 3

HCID 2724141Tetrabutylammonium FluorideHCID 67279624[5-(4-Fluoro-phenyl)-2-(2-triisopropylsilanyloxy-phenyl)-[1,3,4]thiadiazol-3-yl]-(2,4,6-trifluoro-phenyl)-methanoneHCID 67279689[5-(4-Fluoro-phenyl)-2-(3-methoxy-2-triisopropylsilanyloxy-phenyl)-[1,3,4]thiadiazol-3-yl]-(2,4,6-trifluoro-phenyl)-methanone

Product 1

HCID 67279311[5-(4-Fluoro-phenyl)-2-(2-hydroxy-phenyl)-[1,3,4]thiadiazol-3-yl]-(2,4,6-trifluoro-phenyl)-methanone

Procedure

[5-(4-Fluoro-phenyl)-2-(2-triisopropylsilanyloxy-phenyl)-[1,3,4]thiadiazol-3-yl]-(2,4,6-trifluoro-phenyl)-methanone (41 μmol), prepared in a similar manner as described for [5-(4-fluoro-phenyl)-2-(3-methoxy-2-triisopropylsilanyloxy-phenyl)-[1,3,4]thiadiazol-3-yl]-(2,4,6-trifluoro-phenyl)-methanone in example 3, is treated with tetrabutylammonium fluoride (1.0 M in THF) (48 μmol) at room temperature for 40 minutes. The solvent is removed in vacuo and dried over MgSO4 to yield [5-(4-fluoro-phenyl)-2-(2-hydroxy-phenyl)-[1,3,4]thiadiazol-3-yl]-(2,4,6-trifluoro-phenyl)-methanone to be used without further purification.

Workup

  1. customThe solvent is removed in vacuo
  2. dry with materialdried over MgSO4

Sources & evidence

ORD record
ord-eb873ecad0984bfda99ef020f307186e
Source dataset
uspto-grants-2013_10
Patent number
US08569345B2

Reaction notes

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