Tetrabutylammonium Fluoride → HCID 12019520, compound

HRID 2268293Notes

Reaction equation

HRID 2268293 reaction equation
[Si]([O:8][C@@H:9]1[C@@:42]2([CH3:43])[C:13](=[CH:14][CH:15]=[C:16]3[C@@H:41]2[CH2:40][CH2:39][C@@:38]2([CH3:44])[C@H:17]3[CH2:18][CH:19]=[C:20]2[C@@H:21]([S:23][CH2:24][CH2:25][CH2:26][C:27]([CH3:37])([O:29][Si](CC)(CC)CC)[CH3:28])[CH3:22])[CH2:12][C@@H:11]([OH:45])[CH2:10]1)(C(C)(C)C)(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1>[OH:8][C@@H:9]1[C@@:42]2([CH3:43])[C:13](=[CH:14][CH:15]=[C:16]3[C@@H:41]2[CH2:40][CH2:39][C@@:38]2([CH3:44])[C@H:17]3[CH2:18][CH:19]=[C:20]2[C@@H:21]([S:23][CH2:24][CH2:25][CH2:26][C:27]([OH:29])([CH3:28])[CH3:37])[CH3:22])[CH2:12][C@@H:11]([OH:45])[CH2:10]1

Participants

4

Reactant 2

HCID 2724141Tetrabutylammonium FluorideHCID 12019514HCID 12019514, compound

Product 1

HCID 12019520HCID 12019520, compoundYield 92.5%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

Under the same conditions as in Example 9, 1α-(tert-butyldimethylsilyloxy)-3β-hydroxy-20(S)-(4-methyl-4-triethylsilyloxypentylthio)pregna-5,7,16-triene (55.7 mg, 0.0825 mmol), tetrahydrofuran (2 ml) and 1M tetra-n-butylammonium fluoride solution in tetrahydrofuran (2 ml) were reacted and worked up, and then the residue was purified by preparative thin layer chromatography (0.5 mm×2, dichloromethane:ethanol=7:1, developed once) to give the title compound as a colorless oil (34.1 mg, 92%).

Workup

  1. customthe residue was purified by preparative thin layer chromatography (0.5 mm×2, dichloromethane

Sources & evidence

ORD record
ord-147232b2fb914fbd953a13d93c1d3714
Source dataset
uspto-grants-2001_12
Patent number
US06326503B1

Reaction notes

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