2-Mercaptoethanol → 2'-(2-Hydroxy-ethylsulfanylmethyl)-biphenyl-4-carboxylic acid ethyl ester
Reaction equation
C(OC(C1C=C(C2C=CC(C[S:19][CH2:20][CH2:21][OH:22])=CC=2)C=CC=1)=O)C.[CH2:23]([O:25][C:26]([C:28]1[CH:33]=[CH:32][C:31]([C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][C:35]=2[CH2:40]Br)=[CH:30][CH:29]=1)=[O:27])[CH3:24].SCCO.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[CH2:23]([O:25][C:26]([C:28]1[CH:33]=[CH:32][C:31]([C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][C:35]=2[CH2:40][S:19][CH2:20][CH2:21][OH:22])=[CH:30][CH:29]=1)=[O:27])[CH3:24]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
2′-(2-Hydroxy-ethylsulfanylmethyl)-biphenyl-4-carboxylic acid ethyl ester was synthesized as described for 4′-(2-hydroxy-ethylsulfanylmethyl)-biphenyl-3-carboxylic acid ethyl ester. 2′-Bromomethyl-biphenyl-4-carboxylic acid ethyl ester (5.77 g, 18.1 mmol, 1 eq.) in anhydrous DMF was treated with 2-mercaptoethanol (2.83 g, 36.2 mmol, 2 eq.) and potassium carbonate (7.50 g, 54.3 mmol, 3 eq.). When complete, the reaction was worked up as described leaving a yellow oil
Workup
- customas described leaving a yellow oil
Sources & evidence
- ORD record
- ord-836ce7965f97453dab1c2432155f6a44
- Source dataset
- uspto-grants-2006_11
- Patent number
- US07132456B2
Reaction notes
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