ethyl 2,2-bisfluoromethyl-6-iodo-2H-1-benzopyran-4-carboxylate → 2,2-bisfluoromethyl-6-heptafluoropropyl-2H-1-benzopyran-4-carboxylic acid ethyl ester
Reaction equation
[CH2:1]([O:3][C:4]([C:6]1[C:11]2[CH:12]=[C:13](I)[CH:14]=[CH:15][C:10]=2[O:9][C:8]([CH2:19][F:20])([CH2:17][F:18])[CH:7]=1)=[O:5])[CH3:2].[F:21][C:22]([F:33])([F:32])[C:23]([F:31])([F:30])[C:24]([F:29])([F:28])C([O-])=O.[K+]>>[CH2:1]([O:3][C:4]([C:6]1[C:11]2[CH:12]=[C:13]([C:24]([F:29])([F:28])[C:23]([F:31])([F:30])[C:22]([F:33])([F:32])[F:21])[CH:14]=[CH:15][C:10]=2[O:9][C:8]([CH2:19][F:20])([CH2:17][F:18])[CH:7]=1)=[O:5])[CH3:2].[CH2:1]([O:3][C:4]([C:6]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[O:9][C:8]([CH2:19][F:20])([CH2:17][F:18])[CH:7]=1)=[O:5])[CH3:2]Participants
4
Procedure
Using 2,2-bis(fluoromethyl)-6-iodo-2H-1-benzopyran-4-carboxylic acid ethyl ester and potassium heptafluorobutyrate, an oily product of 2,2-bis(fluoromethyl)-6-heptafluoropropyl-2H-1-benzopyran-4-carboxylic acid ethyl ester and an oily product of 2,2-bis(fluoromethyl)-2H-1-benzopyran-4-carboxylic acid ethyl ester were obtained according to the same method as in Example 23 (4). 2,2-Bis(fluoromethyl)-6-heptafluoropropyl-2H-1-benzopyran-4-carboxylic acid ethyl ester:
Sources & evidence
- ORD record
- ord-38e73e45db9f480fb46ed85065fa4825
- Source dataset
- uspto-grants-1997_07
- Patent number
- US05646308
Reaction notes
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