N,N,N',N'-Tetramethylazodicarboxamide → HCID 68617793, compound

HRID 394372Notes

Reaction equation

HRID 394372 reaction equation
[CH2:1]([O:3][C:4](=[O:18])[CH:5]([O:15][CH2:16][CH3:17])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([OH:13])=[CH:9][C:8]=1[CH3:14])[CH3:2].[CH3:19][C:20]1[N:21]=[C:22]([C:28]2[CH:33]=[CH:32][C:31]([C:34]([F:37])([F:36])[F:35])=[CH:30][CH:29]=2)[S:23][C:24]=1[CH:25](O)[CH3:26].C(P(CCCC)CCCC)CCC.CN(C)C(N=NC(N(C)C)=O)=O>>[CH2:1]([O:3][C:4](=[O:18])[CH:5]([O:15][CH2:16][CH3:17])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([O:13][CH:25]([C:24]2[S:23][C:22]([C:28]3[CH:29]=[CH:30][C:31]([C:34]([F:36])([F:37])[F:35])=[CH:32][CH:33]=3)=[N:21][C:20]=2[CH3:19])[CH3:26])=[CH:9][C:8]=1[CH3:14])[CH3:2]

Participants

5

Reactant 4

HCID 4278N,N,N',N'-TetramethylazodicarboxamideHCID 13831TributylphosphineHCID 226476311-[4-Methyl-2-(4-trifluoromethylphenyl)thiazol-5-yl]ethanolHCID 57792490[Rac]-2-ethoxy-3-(4-hydroxy-2-methyl-phenyl)-propionic acid ethyl ester

Product 1

HCID 68617793HCID 68617793, compound

Procedure

In analogy to the procedure described in example 10 c], [rac]-2-ethoxy-3-(4-hydroxy-2-methyl-phenyl)-propionic acid ethyl ester (example 10 b]) was reacted with [rac]-1-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-ethanol [PCT Int. Appl. (2002), WO 02/062774 A1] in the presence of tributylphosphine and N,N,N′,N′-tetramethyl azodicarboxamide to yield 2-ethoxy-3-(2-methyl-4-{1-[4-methyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-ethoxy}-phenyl)-propionic acid ethyl ester as a mixture of two diastereomeric racemates as colorless liquid.

Sources & evidence

ORD record
ord-1f203d1f1c39427da142e43d6d0ae337
Source dataset
uspto-grants-2004_10
Patent number
US06809110B2

Reaction notes

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