9H-Xanthen-9-one, 3-methoxy- → HCID 12320038, compound
Reaction equation
COC1C=CC2C(=O)C3C(OC=2C=1)=CC=CC=3.[CH3:18][O:19][C:20]1[CH:35]=[C:34]([O:36][CH3:37])[C:23]([C:24]([C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=2OC)=[O:25])=[C:22]([OH:38])[CH:21]=1>>[CH3:37][O:36][C:34]1[C:23]2[C:24](=[O:25])[C:26]3[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=3)[O:38][C:22]=2[CH:21]=[C:20]([O:19][CH3:18])[CH:35]=1Participants
3
Procedure
Based on the method of producing 3-methoxyxanthone (5M), 2.20 g (7.75 mmol) of 4 6-dimethoxy-2-hydroxy-2'-methoxybenzophenone (11a) and 2,4,6-trimethoxy-2'-hydroxyphenone (11b) were reacted to give 1.65g (6.45 mmol) of 1,3-dimethoxyxanthone (12M) as colorless powder. The yield was 83%. The physical properties of the compound were measured and are listed below.
Workup
- customwere reacted
Sources & evidence
- ORD record
- ord-5d2d913b106946e4ac189e4e4ccc9903
- Source dataset
- uspto-grants-1996_02
- Patent number
- US05495005
Reaction notes
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