Water → 2-(4-Bromophenyl)oxirane

Temperature

55 °C

A mixture of 4-bromobenzaldehyde (intermediate 29, 25.25 g, 136 mmol), trimethylsulfonium iodide (28.71 g, 141 mmol), water (6.5 ml, 361 mmol) and potassium hydroxide (15.56 g, 277 mmol) in acetonitrile (140 ml) was warmed to 55° C. for 2.5 hours. The resulting solution was partitioned between water and diethyl ether, and the organic layer was washed with water, diluted hydrochloric acid, and brine, and dried over sodium sulfate. Crude product of 2-(4-bromo-phenyl)-oxirane (intermediate 30) was obtained by removal of organic solvent under reduced pressure, which was used for next reaction without purification.

1. customThe resulting solution was partitioned between water and diethyl ether
2. washthe organic layer was washed with water, diluted hydrochloric acid, and brine
3. dry with materialdried over sodium sulfate

ORD record

ord-7a80e117d0854487bca9ef48047048b7

Source dataset

uspto-grants-2012_06

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08198437B2