Trifluoroacetic acid → HCID 10038141, compound
Reaction equation
[CH:1]1([CH3:20])[CH2:6][CH2:5][CH:4]([CH:7]([CH3:9])[CH3:8])[CH:3]([C:10]([O:12][CH:13]2[CH2:17][O:16]C(C)(C)O2)=[O:11])[CH2:2]1.[C:21](O)(C(F)(F)F)=[O:22]>>[CH:1]1([CH3:20])[CH2:6][CH2:5][CH:4]([CH:7]([CH3:8])[CH3:9])[CH:3]([C:10]([O:12][CH2:13][CH:17]([CH2:21][OH:22])[OH:16])=[O:11])[CH2:2]1Participants
3
Procedure
4-(p-Menth-3-oyloxy)-2,2-dimethyl-1,3-dioxolan (3 g.) was stirred for 5 minutes at room temperature with 90% CF3COOH (15 ml.), and the CF3COOH removed in vacuo. The residual oil was stirred for 4 hours at room temperature with a solution of K2CO3 (7%) in water:methanol (2:5) (50 ml.). The methanol was removed on a rotary evaporator, water (30 ml.) added and the mixture extracted four times with ether. The combined extracts were dried (MgSO4). Removal of the ether left an oil which was distilled to yield 1-(p-menth-3-oyl)glycerol as a colourless liquid b.p. 135° /0.1 mm.
Workup
- customthe CF3COOH removed in vacuo
- customThe methanol was removed on a rotary evaporator, water (30 ml.)
- additionadded
- extractionthe mixture extracted four times with ether
- dry with materialThe combined extracts were dried (MgSO4)
- customRemoval of the ether
- waitleft an oil which
- distillationwas distilled
Sources & evidence
- ORD record
- ord-0cc8497c214546c5ba4ab2c0f6e4ea9a
- Source dataset
- uspto-grants-1977_07
- Patent number
- US04033994
Reaction notes
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