C2H5NH2 + COCl2 (phosgene) Reaction:

The reaction between ethylamine (C2H5NH2) and phosgene (COCl2) results in the formation of a product. Let's explore the details of this reaction:

1. Reaction Overview:
- Ethylamine (C2H5NH2) is a primary amine that contains an amino group (NH2) attached to an ethyl group (C2H5).
- Phosgene (COCl2) is a highly toxic and reactive compound used in various chemical processes.
- When ethylamine reacts with phosgene, a substitution reaction occurs, resulting in the formation of an amide compound.

2. Reaction Mechanism:
- The reaction starts with the nucleophilic attack of the lone pair on the nitrogen atom of ethylamine (C2H5NH2) on the carbon atom of phosgene (COCl2).
- This leads to the formation of a tetrahedral intermediate with the displacement of chloride ions.
- The intermediate then rearranges, forming an isocyanate intermediate.
- Finally, the isocyanate reacts with another ethylamine molecule, resulting in the formation of an amide compound.

3. Product Formation:
- The product formed in this reaction is an amide compound.
- The specific amide formed depends on the substitution pattern of the ethylamine molecule.
- For example, if the reaction occurs with primary ethylamine (C2H5NH2), the product will be N-ethylformamide.
- The amide compound contains a carbonyl group (C=O) attached to a nitrogen atom.

In summary, when ethylamine (C2H5NH2) reacts with phosgene (COCl2), a substitution reaction takes place, resulting in the formation of an amide compound. The specific amide formed depends on the substitution pattern of the ethylamine molecule. It is important to note that phosgene is a highly toxic compound and should be handled with extreme care.