Reaction of 1,2-dibromoethane with Mg in presence of dry ether

1. Introduction
The reaction of 1,2-dibromoethane with Mg in presence of dry ether is a type of Grignard reaction.

2. Grignard reagent
Grignard reagents are organometallic compounds that are formed by the reaction of an alkyl, aryl, or vinyl halide with magnesium metal in the presence of a dry ether.

3. Mechanism of the reaction
The reaction of 1,2-dibromoethane with Mg in presence of dry ether proceeds through the following steps:
- Formation of MgBr2 and Mg(C2H4Br)2
- Formation of the Grignard reagent Mg(C2H4Br)2
- Reaction of the Grignard reagent with various electrophiles to yield a range of organic compounds

4. Use of the reaction
This reaction is used in the synthesis of various organic compounds, such as alcohols, aldehydes, ketones, and carboxylic acids.

5. Limitations of the reaction
The reaction has some limitations, such as sensitivity to air and moisture, and the requirement for dry ether.

In conclusion, the reaction of 1,2-dibromoethane with Mg in presence of dry ether is a useful synthetic tool for the formation of Grignard reagents, which can be used in the synthesis of a range of organic compounds. However, the reaction has certain limitations that must be taken into account during its use.