Draw the structures of the following compounds: (d) 2-methylaziridine (e) N-ethyl-N-methylhexan-3-amine (f) m-chloroaniline

Verified step by step guidance

1. Step 1: For 2-methylaziridine, start by drawing the basic structure of aziridine, which is a three-membered ring with one nitrogen and two carbon atoms. The nitrogen atom is at one corner of the ring.
2. Step 2: Then, add a methyl group (CH3) to the second carbon in the ring. Remember that the numbering of the ring starts from the nitrogen atom.
3. Step 3: For N-ethyl-N-methylhexan-3-amine, start by drawing the basic structure of hexan-3-amine, which is a six-carbon chain with an amine group (NH2) on the third carbon.
4. Step 4: Then, add an ethyl group (CH2CH3) and a methyl group (CH3) to the nitrogen atom. The 'N-' before 'ethyl' and 'methyl' indicates that these groups are attached to the nitrogen atom.
5. Step 5: For m-chloroaniline, start by drawing the basic structure of aniline, which is a benzene ring with an amine group (NH2). The 'm-' before 'chloro' indicates that the chlorine atom is attached to the third carbon atom in the ring, counting from the carbon attached to the amine group.

Key Concepts

Aziridine Structure

Aziridine is a three-membered cyclic amine with one nitrogen atom and two carbon atoms. The '2-methyl' designation indicates a methyl group attached to the second carbon of the aziridine ring. Understanding the geometry and bonding in small rings is crucial for accurately drawing aziridine derivatives.

Amine Nomenclature

Amines are organic compounds derived from ammonia by replacing one or more hydrogen atoms with alkyl or aryl groups. The naming convention for amines includes identifying the longest carbon chain and the substituents, as seen in 'N-ethyl-N-methylhexan-3-amine,' which indicates a hexane backbone with ethyl and methyl groups attached to the nitrogen.

Substituent Positioning

In organic chemistry, the position of substituents on a carbon chain is critical for understanding the compound's structure and reactivity. For example, 'm-chloroaniline' refers to a chloro group positioned meta to the amino group on a benzene ring. Recognizing how to interpret and depict these positions is essential for accurate structural representation.