Water → HCID 67313359, compound

HRID 1391497Notes

Reaction equation

HRID 1391497 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]#[CH:9].C([Li])CCC.[N:15]1[CH:20]=[CH:19][CH:18]=[C:17]([CH:21]=[O:22])[CH:16]=1.O>O1CCCC1.CCCCCC>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]#[C:9][CH:21]([C:17]1[CH:16]=[N:15][CH:20]=[CH:19][CH:18]=1)[OH:22]

Participants

7

Reactant 4

HCID 962WaterHCID 103713-PyridinecarboxaldehydeHCID 5859951-Chloro-2-ethynylbenzeneHCID 178418339Butyllithium

Product 1

HCID 67313359HCID 67313359, compound

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolvent2×HCID 8058HexaneSolvent

Conditions

Temperature
-78 °C

Procedure

To a solution of 655 mg (4.8 mmol) of 2-chlorophenylacetylene in 10 mL of tetrahydrofuran (THF) cooled to −78° C. under a nitrogen atmosphere was added 3.0 mL (4.8 mmol) of 1.6M n-butyllithium in hexane. The solution was stirred at −78° C. for 2 hrs, and then a solution of 514 mg (4.8 mmol) of 3-pyridinecarboxaldehyde in 2.5 mL of tetrahydrofuran (THF) was added. After 3.5 hrs, the reaction mixture was poured into water. The organic product was extracted with ether several times. Combined ether extracts were washed with saturated sodium bicarbonate and dried over magnesium sulfate. The drying agent was filtered off, and the ether was removed by rotoevaporation to give the oily 3-(2-chlorophenyl)-1-(3-pyridyl)-2-propyn-1-ol.

Workup

  1. waitAfter 3.5 hrs
  2. extractionThe organic product was extracted with ether several times
  3. washCombined ether extracts were washed with saturated sodium bicarbonate
  4. dry with materialdried over magnesium sulfate
  5. filtrationThe drying agent was filtered off
  6. customthe ether was removed by rotoevaporation

Sources & evidence

ORD record
ord-821d31fadc094951b0796da93ad32506
Source dataset
uspto-grants-2008_03
Patent number
US07338967B2

Reaction notes

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