Trichloromethanesulfonyl chloride

Trichloromethanesulfonyl chloride Property

Melting point:

137-140 °C(lit.)

Boiling point:

170°C

Density 

1.8252 (estimate)

solubility 

soluble in Toluene

form 

solid

color 

White to Almost white

CAS DataBase Reference

2547-61-7(CAS DataBase Reference)

NIST Chemistry Reference

Methanesulfonyl chloride, trichloro-(2547-61-7)

EPA Substance Registry System

Methanesulfonyl chloride, trichloro- (2547-61-7)

Safety

Hazard Codes 

C

Risk Statements 

34-36/37

Safety Statements 

26-27-28-36/37/39-45

RIDADR 

UN 3261 8/PG 2

WGK Germany 

3

HS Code 

2904.10.5000

HazardClass 

8

PackingGroup 

III

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

H335May cause respiratory irritation

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Trichloromethanesulfonyl chloride Chemical Properties,Usage,Production

Application

Trichloromethanesulfonyl chloride can be used as a pharmaceutical synthesis intermediate. Perfluoroiodoalkanes and bromoalkanes undergo sulfinization-deiodination and debromination reactions with sodium dithionite under appropriate conditions, while perfluorochloroalkanes do not react under similar conditions. However, carbon tetrachloride and 1,1,1-trichloropolyfluoroalkanes can undergo sulfinization-dechlorination reactions with sodium dithionite. Trichlorobromomethane and trichloroiodomethane react under similar conditions to yield sulfinized debromination and deiodination products, respectively.

General Description

Trichloromethanesulfonyl chloride is an efficient free radical chlorinating agent. It reacts with pent-4-enylcobaloximes in inert solvent under tugsten lamp irradiation to yield 2-(β,β,β- trichloroethyl)sulfolanes. It also reacts with trimethylsilyl enol ethers of acetophenones in the presence of a ruthenium (II) phosphine complex to yield 1-aryl-3,3-dichloropropen-1-one and α-chloroacetophenones.