Di-n-butylmagnesium Property

Melting point:

-71 °C

Density 

0.749 g/mL at 20 °C

Flash point:

21 °F

storage temp. 

2-8°C

BRN 

3535184

InChIKey

ODHFJIDDBSDWNU-UHFFFAOYSA-N

CAS DataBase Reference

1191-47-5

EPA Substance Registry System

Magnesium, dibutyl- (1191-47-5)

Safety

Hazard Codes 

F+,C,T,F,N

Risk Statements 

12-14/15-22-34-66-67-48/20/22-40-39/23/24/25-23/24/25-11-10-65-50/53-17-19-62-52/53-48/20

Safety Statements 

16-26-36/37/39-43-45-7/8-62-61-60

RIDADR 

UN 3399 4.3/PG 1

WGK Germany 

1

F 

1-3-10

HS Code 

29310099

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H224Extremely flammable liquid and vapour

H225Highly Flammable liquid and vapour

H250Catches fire spontaneously if exposed to air

H260In contact with water releases flammable gases which may ignite spontaneously

H302Harmful if swallowed

H304May be fatal if swallowed and enters airways

H314Causes severe skin burns and eye damage

H336May cause drowsiness or dizziness

H373May cause damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P231+P232Handle under inert gas. Protect from moisture.

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

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P302+P334IF ON SKIN: Immerse in cool water/wrap in wet bandages.

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.

P331Do NOT induce vomiting.

P370+P378In case of fire: Use … for extinction.

P403+P235Store in a well-ventilated place. Keep cool.

P422Store contents under …

Di-n-butylmagnesium Chemical Properties,Usage,Production

Chemical Properties

The pure substance is a waxy solid. Commercially, it is marketed as solution in?heptane. Di-n-butylmagnesium solution is a useful reagent for the synthesis of organomagnesium compounds.

Uses

Electrochemically inactive [Mg₂(μ-Cl)₃.6THF][C₂H₅AlCl₃] crystal may be obtained from an electrolyte composed of Di-n-butylmagnesium and ethylaluminum dichloride. Di-n-butylmagnesium may be used in the carbon metallation of α-olefins. A study reports the possible use of the organometallic compound in the intercalation of magnesium and zinc into the layers of TiS₂ or WO₂Cl₂. Interaction of lithium alkoxide with di-n-butylmagnesium was investigated.

Application

Di-n-butylmagnesium solution can be used as a reagent for the deprotection of aromatic and aliphatic benzyl thioethers to synthesize corresponding benzylthiols in the presence of titanocene dichloride. It can also be used as a catalyst to synthesize enantioenriched nitrogen-containing heterocyclic derivatives by the asymmetric ring-opening reaction of aziridines with substituted tetrazoles in the presence of chiral ligand.

General Description

Contains up to 1 wt. % Triethylaluminum as a viscosity reducer. stable under normal temperature and pressure, sensitive to light. contact with water releases flammable gas.