Benzyl Alcohol → 1-Benzyloxy-3-chloro-2-propanol

HRID 1632289Notes

Reaction equation

HRID 1632289 reaction equation
[CH2:1]([OH:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.B(F)(F)F.[CH2:13]([CH:15]1[O:17][CH2:16]1)[Cl:14]>CCOCC>[CH2:1]([O:8][CH2:16][CH:15]([OH:17])[CH2:13][Cl:14])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Conditions

Temperature
80 °C

Procedure

A 1,000 mL, 3-necked flask equipped with a mechanical stirrer, condenser, thermometer and 500 mL addition funnel was charged with benzyl alcohol (324 g, 3.0 mol) and 5% BF3 -etherate in ether (10 mL). This mixture was stirred and heated to 80° C. Epichlorohydrin (278 g, 3.0 mol) was added dropwise over 6 hours, and the reaction mixture was stirred an additional 24 hours at 80° C. The crude product was distilled from NaHCO3 (1 g) using a 25 cm Vigreux column. The fractions boiling from 95° C. (0.05 mm) to 120° C. (0.03 mm) were collected and combined to yield 353 g (58%) of pure 3-benzyloxy-2-hydroxypropyl chloride.

Workup

  1. customA 1,000 mL, 3-necked flask equipped with a mechanical stirrer, condenser
  2. additionthermometer and 500 mL addition funnel
  3. stirringthe reaction mixture was stirred an additional 24 hours at 80° C
  4. distillationThe crude product was distilled from NaHCO3 (1 g)
  5. customboiling from 95° C.
  6. customto 120° C.
  7. customwere collected

Sources & evidence

ORD record
ord-bb4e2b52092e4673916faf04a426723f
Source dataset
uspto-grants-1984_10
Patent number
US04474963

Reaction notes

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