4-Chlororesorcinol → HCID 58913563, compound
Reaction equation
[O:1]1[C:6]2[CH:7]=[CH:8][C:9]([CH2:11][C:12]([OH:14])=O)=[CH:10][C:5]=2[O:4][CH2:3][CH2:2]1.[Cl:15][C:16]1[CH:22]=[CH:21][C:19]([OH:20])=[CH:18][C:17]=1[OH:23].B(F)(F)F.CCOCC>>[Cl:15][C:16]1[C:17]([OH:23])=[CH:18][C:19]([OH:20])=[C:21]([C:12](=[O:14])[CH2:11][C:9]2[CH:8]=[CH:7][C:6]3[O:1][CH2:2][CH2:3][O:4][C:5]=3[CH:10]=2)[CH:22]=1Participants
4
Procedure
This compounds was synthesised in the same manner as described above. (2,3-Dihydro-benzo[1,4]dioxin-6-yl)-acetic acid (0.3 g, 1.55 mmol), 4-chlororesorcinol (0.22 g, 1.55 mmol), boron trifloride etherate (3 ml). After standing for two hours a precipitate formed which was filtered, washed (water), and dried to give 1-(5-Chloro-2,4-dihydroxy-phenyl)-2-(2,3-dihydro-benzo[1,4]dioxin-6-yl)-ethanone as a white solid (0.34 g, 68.3%); Rf 0.9 hexane/ethyl acetate (20/80).
Workup
- customThis compounds was synthesised in the same manner
- customa precipitate formed which
- filtrationwas filtered
- washwashed (water)
- customdried
Sources & evidence
- ORD record
- ord-853c2456ac4445c7b732eda64aebf476
- Source dataset
- uspto-grants-2007_07
- Patent number
- US07247734B2
Reaction notes
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