Tetrabutylammonium Fluoride → 2-[2-(4-methoxycarbonylmethylphenoxy)-1(R)methylethyl]amino-1(R)-(3-chlorophenyl)ethanol
Reaction equation
[CH3:1][O:2][C:3]([CH2:5][C:6]1[CH:33]=[CH:32][C:9]([O:10][CH2:11][C@H:12]([NH:14][CH2:15][C@H:16]([O:24][Si](C(C)(C)C)(C)C)[C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([Cl:23])[CH:18]=2)[CH3:13])=[CH:8][CH:7]=1)=[O:4].[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1>[CH3:1][O:2][C:3]([CH2:5][C:6]1[CH:33]=[CH:32][C:9]([O:10][CH2:11][C@H:12]([NH:14][CH2:15][C@@H:16]([C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([Cl:23])[CH:18]=2)[OH:24])[CH3:13])=[CH:8][CH:7]=1)=[O:4]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Following a procedure similar to that described in Example 27, but using 3.02 g of N-[2-(4-methoxycarbonylmethylphenoxy)-1(R)-methylethyl]-2(R)-t-butyldimethylsilyloxy-2-(3-chlorophenyl)ethanamine (prepared as described in Preparation 50), 4.81 g of tetrabutylammonium fluoride and 100 ml of tetrahydrofuran, 1.7 g of the title compound were obtained having an Rf=0.39 (thin layer chromatography over silica gel, using ethyl acetate as the developing solvent). [α]D23 -13.2° (c=0.99, methanol).
Sources & evidence
- ORD record
- ord-bd834f8f90f049cd876e56866c0a84f2
- Source dataset
- uspto-grants-1997_06
- Patent number
- US05635534
Reaction notes
Loading…