Question

Convert the following Newman projections to skeletal structures and name them.

Short answer

1. 3-ethyl-pentan-2-ol

b. 2,2 dimethyl-pentanamine

Step-by-step solution

Definition of skeletal structure and the concept of IUPAC naming

Skeletal structures are only the lines where all the atoms are represented other than carbon in a ring, branch, or chain.

We canwrite the IUPACname of the compound by using the following rules andtheseare as follows.

There are some rules to be followed for the naming of a structure and these are given as follows,

1. Finding the longest chain.
2. Numbering the chain according to the priority order of double bond, triple bond, and functional group.

Functionalgroupsshould be written in alphabeticalorder, meaningif there is a methyl and ethyl group,put the ethylgroup at 1st as e comes earlier than m in Alphabets

Subpart (a) Estimation of the first skeletal structure and its naming

The step-by-step conversion from Newman projection to skeletal projection is

The name of the structure is 3-ethyl-pentan-2-ol.

Subpart (b) Estimation of the second skeletal structure and its naming

Here, the step-by-step conversion from Newman projection to skeletal projection is

The name of the compound is 2,2 dimethyl-pentanamine.