Cyclopropylboronic acid → HCID 178498917, compound
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][CH:11]=[C:10](Br)[CH:9]=2)=[O:4].[CH:18]1(B(O)O)[CH2:20][CH2:19]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][CH:11]=[C:10]([CH:18]1[CH2:20][CH2:19]1)[CH:9]=2)=[O:4]Participants
3
Procedure
7-Cyclopropyl-4-hydroxy-2-oxo-2H-thiochromene-3-carboxylic acid methyl ester was prepared from 7-bromo-4-hydroxy-2-oxo-2H-thiochromene-3-carboxylic acid methyl ester under conditions analogous to Example 7(a) using cyclopropylboronic acid. The crude material was used in the next step without purification.
Workup
- customThe crude material was used in the next step without purification
Sources & evidence
- ORD record
- ord-f8aafeb5033346889a6e5670ea55cf38
- Source dataset
- uspto-grants-2015_10
- Patent number
- US09149476B2
Reaction notes
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