Triethylamine → HCID 22619447, compound

HRID 1275502Notes

Reaction equation

HRID 1275502 reaction equation
[C:1]([CH:3]([C:5]1[CH:14]=[CH:13][C:12]2[C:11]([CH3:16])([CH3:15])[CH2:10][CH2:9][C:8]([CH3:18])([CH3:17])[C:7]=2[CH:6]=1)[OH:4])#[CH:2].Br[C:20]1[CH:27]=[CH:26][C:23]([CH:24]=[O:25])=[CH:22][CH:21]=1.C(N(CC)CC)C.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>O.C(OCC)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[OH:4][CH:3]([C:5]1[CH:14]=[CH:13][C:12]2[C:11]([CH3:16])([CH3:15])[CH2:10][CH2:9][C:8]([CH3:18])([CH3:17])[C:7]=2[CH:6]=1)[C:1]#[C:2][C:20]1[CH:27]=[CH:26][C:23]([CH:24]=[O:25])=[CH:22][CH:21]=1

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 11776TriphenylphosphineHCID 707414-BromobenzaldehydeHCID 11817362alpha-Ethynyl-5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenemethanol

Product 1

HCID 22619447HCID 22619447, compound

Reagents, catalysts & solvents 3

HCID 167845palladium(II) acetateCatalystHCID 962WaterSolventHCID 3283Diethyl EtherSolvent

Procedure

2.42 g (10 mmol) of α-ethynyl-5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenemethanol, 2 g (11 mmol) of 4-bromobenzaldehyde and 50 ml of triethylamine were introduced into a three-necked flask. The reaction mixture was degassed with nitrogen for 30 min. and then 169 mg (0.75 mmol) of palladium(II) acetate and 393 mg (1.5 mmol) of triphenylphosphine were successively added. Heating was carried out at 60° C. for one hour, the reaction mixture was evaporated to dryness and the residue obtained was taken up in water and ethyl ether. The organic phase was separated by settling, dried over magnesium sulfate and evaporated. The residue obtained was purified by chromatography on a silica column eluted with a mixture of dichloromethane and heptane (70/30). 1.23 g (35.5%) of 4-(3-hydroxy-3-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-1-propynyl]benzaldehyde, with a melting point of 104°-105° C., was recovered.

Workup

  1. customThe reaction mixture was degassed with nitrogen for 30 min.
  2. temperatureHeating
  3. customthe reaction mixture was evaporated to dryness
  4. customthe residue obtained
  5. customThe organic phase was separated
  6. dry with materialdried over magnesium sulfate
  7. customevaporated
  8. customThe residue obtained
  9. customwas purified by chromatography on a silica column
  10. washeluted with a mixture of dichloromethane and heptane (70/30)
  11. custom1.23 g (35.5%) of 4-(3-hydroxy-3-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-1-propynyl]benzaldehyde, with a melting point of 104°-105° C., was recovered

Sources & evidence

ORD record
ord-eea60e5044e748fea89f6a2cd9fcd777
Source dataset
uspto-grants-2000_12
Patent number
US06162445

Reaction notes

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