4-Chlorophenylboronic acid → HCID 86679884, compound

HRID 1519394Notes

Reaction equation

HRID 1519394 reaction equation
C[O:2][C:3](=[O:24])[C:4]1[CH:9]=[C:8]([C:10]2[S:11][CH:12]=[C:13]([C:15]3[CH:20]=[CH:19][C:18]([Cl:21])=[C:17]([Cl:22])[CH:16]=3)[N:14]=2)[CH:7]=[CH:6][C:5]=1Br.[Cl:25][C:26]1[CH:31]=[CH:30][C:29](B(O)O)=[CH:28][CH:27]=1>>[Cl:25][C:26]1[CH:31]=[CH:30][C:29]([C:5]2[C:4]([C:3]([OH:2])=[O:24])=[CH:9][C:8]([C:10]3[S:11][CH:12]=[C:13]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[C:17]([Cl:22])[CH:16]=4)[N:14]=3)=[CH:7][CH:6]=2)=[CH:28][CH:27]=1

Participants

3

Reactant 2

HCID 742994-Chlorophenylboronic acidHCID 86679833Methyl 2-bromo-5-(4-(3,4-dichlorophenyl)thiazol-2-yl)benzoate2×

Product 1

HCID 86679884HCID 86679884, compoundYield 29.3%

Procedure

Using the conditions of General Procedure B for Suzuki Coupling and Hydrolysis in Parallel Mode, 2-bromo-5-[4-(3,4-dichloro-phenyl)-thiazol-2-yl]-benzoic acid methyl ester (which may be prepared as described for Intermediate 6; 63 mg, 0.2 mmol) was reacted with 4-chlorophenylboronic acid (available from Combi-Blocks Inc.; 56 mg, 0.4 mmol). The resulting ester was hydrolyzed and the acid was purified to give 4′-chloro-4-[4-(3,4-dichloro-phenyl)-thiazol-2-yl]-biphenyl-2-carboxylic acid (27 mg, 29%). 1H NMR (400 MHz, DMSO-d6) δ 8.47 (s, 1H), 8.37 (s, 1H), 8.33 (s, 1H), 8.22 (d, J=8.0 Hz, 1H), 8.09 (d, J=8.5 Hz, 1H), 7.76 (d, J=8.5 Hz, 1H), 7.56 (d, J=8.0 Hz, 1H), 7.51 (d, J=6.8 Hz, 2H), 7.42 (d, J=6.8 Hz, 2H).

Workup

  1. customthe acid was purified

Sources & evidence

ORD record
ord-2158059ab8694b228192d5bb612ce5c6
Source dataset
uspto-grants-2015_07
Patent number
US09073881B2

Reaction notes

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