3,5-Bis(trifluoromethyl)benzyl bromide Chemical Properties

Melting point:

18°C

Boiling point:

136-140°C 14mm

Density 

1.675 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.445(lit.)

Flash point:

79 °F

storage temp. 

Inert atmosphere,2-8°C

solubility 

Difficult to mix.

form 

Liquid

Specific Gravity

1.675

color 

Clear colorless to yellow-brown

Sensitive 

Lachrymatory

BRN 

656506

CAS DataBase Reference

32247-96-4(CAS DataBase Reference)

NIST Chemistry Reference

3,5-Bis(trifluoromethyl)benzyl bromide(32247-96-4)

Safety Information

Hazard Codes 

C,F

Risk Statements 

10-34

Safety Statements 

26-36/37/39-45-25-16

RIDADR 

UN 2920 8/PG 2

WGK Germany 

3

Hazard Note 

Corrosive/Lachrymatory

HazardClass 

8

PackingGroup 

III

HS Code 

29039990

MSDS

• Language:English Provider:3,5-Bis(trifluoromethyl)benzyl bromide
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

3,5-Bis(trifluoromethyl)benzyl bromide Usage And Synthesis

Chemical Properties

White or Colorles to Yellow to Orange powder to lump to clear liquid

Uses

3,5-Bis(trifluoromethyl)benzyl bromide is used as derivatization reagent in detection of uracil in DNA by GC and negative chemical ionization mass spectrometry in enantioselective synthesis of non-peptidic neurokinin NK1 receptor antagonist.

Synthesis

Synthesis of 3, 5-bis (trifluoromethyl)-benzyl bromide:
In a 4-neck flask with capacity 1000 ml equipped with mechanical agitator, thermometer, bubble condenser and 100 ml loading funnel, 262.2 g of the product of Example 1 (ii) at 92. 8% (0. 988 moles), 550,2 g HBr 48% (3.2645 moles) are loaded; this is heated at 50°C so as to melt the alcohol, then one starts to dose 113 g of concentrated His04 (1.153 moles). Pouring is accomplished in 30 minutes, noting an increase of the internal temperature. This is heated to 100-105°C and left to react for 8 hours. The reaction is completed by reflux heating for per 1.5 hours. the mixture is left to settle and the phases are separated; the solvents are removed from the organic phase and the product in the title is obtained with a yield of 99.1 %.

3,5-Bis(trifluoromethyl)benzyl bromide(32247-96-4)Related Product Information

• Benzyl alcohol
• 4-Bromomethylbenzoic acid
• Ethyl bromodifluoroacetate
• Benzyl benzoate
• Benzyl bromide
• Sodium bromate
• Bromotrimethylsilane
• Ethidium bromide
• Allyl bromide
• 3,5-Bis(trifluoromethyl)bromobenzene
• Rocuronium bromide
• 2,4-BIS(TRIFLUOROMETHYL)BENZYL BROMIDE,2,4-Bis(trifluoromethyl)benzyl bromide, 97+%,2,4-Bis(trifluoromethyl)benzyl bromide 98%
• Methyl bromide
• 3-Methylbenzyl bromide
• 3,5-Dimethylbenzyl bromide
• 1,3-Bis(trifluoromethyl)-benzene
• 2,5-BIS(TRIFLUOROMETHYL)BENZYL BROMIDE
• Phenylacetone