Antimony trifluoride → HCID 57370488, compound

Temperature

30 °C

A glass reactor equipped with a thermometer, a stirrer, and a condenser was charged with 76.8 g (0.43 mol) of antimony trifluoride, and, while cooling with water to 0° to 10° C., 76.8 g (0.3 mol) of 2-bis(dichloromethylsilyl)ethane was added thereto dropwise. The 2-bis(dichloromethylsilyl)ethane used here had a purity of 99.5% and contained 0.1% of 1,1-bis(difluoromethylfluorosilyl)ethane. After the dropwise addition, the mixture was stirred at 30° C. for 2 hours to complete the reaction. The reaction solution was distilled twice to yield 40.2 g of 1,2-bis(difluoromethylsilyl)ethane (designated compound A1) free from 1,1-bis(difluoromethylsilyl)ethane. The 1,2-bis(difluoromethylsilyl)ethane thus obtained is a compound of general formula (1) in which R1 and R2 are both methyl.

1. customA glass reactor equipped with a thermometer, a stirrer, and a condenser
2. additionAfter the dropwise addition
3. customthe reaction
4. distillationThe reaction solution was distilled twice

ORD record

ord-1ef65359b7834515b8fb66c8e873ace6

Source dataset

uspto-grants-2016_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09419306B2