6-Chloro-2-(4-chlorophenyl)-2,3-dihydro-4H-1-benzopyran-4-one → HCID 54133109, compound
Reaction equation
ClC1C=CC(C2CC(=[S:16])C3C(=CC=C(Cl)C=3)O2)=CC=1.[Cl:20][C:21]1[CH:38]=[CH:37][C:24]([CH:25]2[CH2:34][C:33](=O)[C:32]3[C:27](=[CH:28][CH:29]=[C:30]([Cl:36])[CH:31]=3)O2)=[CH:23][CH:22]=1>>[Cl:20][C:21]1[CH:38]=[CH:37][C:24]([CH:25]2[CH2:34][CH2:33][C:32]3[C:27](=[CH:28][CH:29]=[C:30]([Cl:36])[CH:31]=3)[S:16]2)=[CH:23][CH:22]=1Participants
3
Procedure
4',6-dichlorothioflavanone, (m.pt. 125°-127°), was prepared from 4',6-dichloroflavanone by a method exactly analogous to that used in Example 1(c).
Sources & evidence
- ORD record
- ord-9d76e4a62291444583bd059291673734
- Source dataset
- uspto-grants-1989_01
- Patent number
- US04801593
Reaction notes
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