Allyl bromide → 4,4,5,5,6,6,7,7,7-Nonafluorohept-1-ene

A mixture of perfluorobutyl iodide (103.8 g, 0.3 mol), copper powder (50 g, 0.79 mol) and dimethyl sulfoxide (150 mL) was stirred at 110°-120° C. for 2 hr, then cooled to room temperature. Allyl bromide (36.3 g, 0.3 mol) was added dropwise and then the mixture was stirred at room temperature for 2 hr and at 50° C. for 1 hr. The reaction mixture was distilled in vacuo and the crude product was collected in a cold trap (-78° C.). Redistillation produced 55.2 g (70% yield) of the desired 4,4,5,5,6,6,7,7,7-nonafluoro-1-heptene, formula above, having a boiling point of 79°-80° C.

1. stirringthe mixture was stirred at room temperature for 2 hr and at 50° C. for 1 hr
2. distillationThe reaction mixture was distilled in vacuo
3. customthe crude product was collected in a cold trap (-78° C.)
4. distillationRedistillation

ORD record

ord-1d1b9226f3454e558aa674478fc26520

Source dataset

uspto-grants-1998_06

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05763552