Boron trifluoride etherate → HCID 15056951, compound
Reaction equation
[CH3:1][C:2]1([CH3:20])[CH2:7][CH2:6][CH:5]=[C:4]([C:8]2[CH:13]=[CH:12][C:11]([F:14])=[C:10]([CH3:15])[CH:9]=2)[CH:3]1[C:16]([O:18][CH3:19])=[O:17].[CH2:21]([SH:25])[CH2:22][CH2:23][SH:24].B(F)(F)F.CCOCC>C(O)(=O)C.CCOCC>[F:14][C:11]1[CH:12]=[CH:13][C:8]([C:4]2[CH:3]([C:16]([O:18][CH3:19])=[O:17])[C:2]([CH3:20])([CH3:1])[CH2:7][C:6]3([S:25][CH2:21][CH2:22][CH2:23][S:24]3)[CH:5]=2)=[CH:9][C:10]=1[CH3:15]Participants
6
Reactant 3
Product 1
Reagents, catalysts & solvents 2
Procedure
To a solution of 4a (7.75 g, 26.7 mmol) and 1,3-propanedithiol (3.03g, 28.1 mmol) in 50 mL acetic acid was added boron trifluoride etherate (7.98g, 56.2 mmol). The solution was stirred overnight, diluted with ether, washed with H2O saturated NaHCO3, and brine and dried (MgSO4). Removal of the volatile in vacuo provided a residue which was crystallized from hexane, wt 8.0 g, mp 100°-01° C. Anal. C20H25OF2S2 : Theory C: 63.12; H:6.62; S:16.85. Found C: 63.45; H:6.58; S: 16.44.
Workup
- washwashed with H2O saturated NaHCO3, and brine
- dry with materialdried (MgSO4)
- customRemoval of the volatile in vacuo
- customprovided a residue which
- customwas crystallized from hexane, wt 8.0 g, mp 100°-01° C
Sources & evidence
- ORD record
- ord-679d669a6e954a15b25c0fdb8348ade2
- Source dataset
- uspto-grants-1991_03
- Patent number
- US05001144
Reaction notes
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