Methanol → (+)-trans-3-Hydroxymethyl-4-phenylcyclopentan-1-one

HRID 993213Notes

Reaction equation

HRID 993213 reaction equation
[OH:1][CH2:2][C@@H:3]1[CH2:7][C:6](=C)[CH2:5][C@H:4]1[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.C[OH:16]>>[OH:1][CH2:2][C@@H:3]1[CH2:7][C:6](=[O:16])[CH2:5][C@H:4]1[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1

Participants

3

Reactant 2

HCID 887MethanolHCID 18686190(+-)-trans-1-Hydroxymethyl-4-methylene-2-phenylcyclopentane

Product 1

HCID 53754795(+)-trans-3-Hydroxymethyl-4-phenylcyclopentan-1-one

Procedure

Into a solution of (+−)-trans-1-hydroxymethyl-4-methylene-2-phenylcyclopentane from Step B (22.7 g, 121 mmol) in methanol (200 mL) cooled in a dry ice/acetone bath was bubbled ozone until the blue color persisted. The excess ozone was removed with a stream of nitrogen and then dimethylsulfide (20 mL) was added. After 10 min, the bath was removed and the reaction was allowed to warm to rt over 16 h. The volatiles were removed in vacuo and the residue was purified by FC (15-30% ethyl acetate in hexanes) to give the title compound (22.1 g).

Workup

  1. customwas bubbled ozone until the blue color
  2. customThe excess ozone was removed with a stream of nitrogen
  3. additiondimethylsulfide (20 mL) was added
  4. customthe bath was removed
  5. customThe volatiles were removed in vacuo
  6. customthe residue was purified by FC (15-30% ethyl acetate in hexanes)

Sources & evidence

ORD record
ord-a171d0b0013846f7b59e999cdcb4a441
Source dataset
uspto-grants-2002_10
Patent number
US06472410B1

Reaction notes

Loading…