4-(Trifluoromethoxy)phenylboronic acid → HCID 178498911, compound

HRID 1423948Notes

Reaction equation

HRID 1423948 reaction equation
[CH3:1][O:2][C:3]([C:5]1[C:6](=[O:17])[S:7][C:8]2[C:13]([C:14]=1[OH:15])=[CH:12][C:11](Br)=[CH:10][CH:9]=2)=[O:4].F[C:19](F)(F)[O:20][C:21]1[CH:26]=[CH:25][C:24](B(O)O)=[CH:23][CH:22]=1>>[CH3:1][O:2][C:3]([C:5]1[C:6](=[O:17])[S:7][C:8]2[C:13]([C:14]=1[OH:15])=[CH:12][C:11]([C:22]1[CH:23]=[CH:24][CH:25]=[CH:26][C:21]=1[O:20][CH3:19])=[CH:10][CH:9]=2)=[O:4]

Participants

3

Reactant 2

HCID 27343864-(Trifluoromethoxy)phenylboronic acidHCID 178498908HCID 178498908, compound

Product 1

HCID 178498911HCID 178498911, compound

Procedure

4-Hydroxy-6-(2-methoxy-phenyl)-2-oxo-2H-thiochromene-3-carboxylic acid methyl ester was prepared from 6-bromo-4-hydroxy-2-oxo-2H-thiochromene-3-carboxylic acid methyl ester under conditions analogous to Example 7(a) using 4-trifluoromethoxy-phenylboronic acid. 1H NMR (200 MHz, CDCl3): δ (ppm)=8.534 (s, 1H), 7.782 (d, 1H), 7.639 (d, 2H), 7.444 (d, 1H), 7.320 (d, 2H), 4.026 (s, 3H).

Sources & evidence

ORD record
ord-bbc544b149f04fdbbca90916c793a884
Source dataset
uspto-grants-2015_01
Patent number
US08927591B2

Reaction notes

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