Furan → 5-Chloro-1-(2-furyl)-1-pentanol

HRID 1389629

Reaction equation

HRID 1389629 reaction equation
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[Li].C([Li])CCC.O1C=CC=C1.[Cl:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][OH:23].[Cl-].[NH4+]>CCOCC.C(Cl)Cl.CCCCCC>[Cl:17][CH2:18][CH2:19][CH2:20][CH2:21][CH:22]([C:2]1[O:1][CH:5]=[CH:4][CH:3]=1)[OH:23]

Participants

9

Reactant 5

HCID 8029FuranHCID 25517Ammonium ChlorideHCID 789155-Chloro-1-pentanolHCID 178418296HCID 178418296, compoundHCID 178418339Butyllithium

Product 1

HCID 202925795-Chloro-1-(2-furyl)-1-pentanol

Reagents, catalysts & solvents 3

HCID 3283Diethyl EtherSolvent2×HCID 6344DichloromethaneSolventHCID 8058HexaneSolvent

Procedure

To a stirred suspension of 2-furyllithium (prepared from 0.53 moles of n-butyllithium and 39.5 g of furan by the procedure of J. Org. Chem., 27, 1216 (1962)) in 350 ml of ether and ca. 200 ml of hexane at -78° is added a solution of 57.9 g of 5-chloropentanol (Chem. Abstr., 59, 7579F (1963)) in 80 ml of ether during 25 minutes. The mixture is warmed to 0° during 20 minutes, stirred at 0° for 15 minutes, and treated with 140 ml of saturated ammonium chloride. The ether phase is washed with water and brine, dried over magnesium sulfate and potassium carbonate mixture, and concentrated to give a liquid, pmr spectrum (CDCl3): δ3.59 (triplet, CH2Cl2) and 4.70 (triplet, CH2CHOH).

Workup

  1. temperatureThe mixture is warmed to 0° during 20 minutes
  2. washThe ether phase is washed with water and brine
  3. dry with materialdried over magnesium sulfate and potassium carbonate mixture
  4. concentrationconcentrated
  5. customto give a liquid, pmr spectrum (CDCl3)

Sources & evidence

ORD record
ord-fb32fe539e074f17aad79b901dd3649c
Source dataset
uspto-grants-1981_01
Patent number
US04245121

Linked notes

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