5. Chirality
R and S Configuration
9PRACTICE PROBLEM
The structure of 3,4,4-trimethylpent-1-yne is given below. When pure (S)-3,4,4-trimethylpent-1-yne is reacted with two equivalents of hydrogen over a platinum catalyst then (R)-2,2,3-trimethylpentane is produced. The reactant is named 'S' while the product is named 'R'. Explain if this change of configuration in the product is due to inversion or something else.
![](https://lightcat-files.s3.amazonaws.com/problem_images/85ca246bc24d94cb-1666879335771.jpg)
The structure of 3,4,4-trimethylpent-1-yne is given below. When pure (S)-3,4,4-trimethylpent-1-yne is reacted with two equivalents of hydrogen over a platinum catalyst then (R)-2,2,3-trimethylpentane is produced. The reactant is named 'S' while the product is named 'R'. Explain if this change of configuration in the product is due to inversion or something else.