4-Hydroxy- and 5-hydroxyaldehydes exist primarily as cyclic hemiacetals. Draw the structure of the cyclic hemiacetal formed by each of the following: a. 4-hydroxybutanal b. 4-hydroxypentanal c. 5-hydroxypentanal d. 4-hydroxyheptanal

4-Hydroxy- and 5-hydroxyaldehydes exist primarily as cyclic hemiacetals. Draw the structure of the cyclic hemiacetal formed by each of the following: a. 4-hydroxybutanal b. 4-hydroxypentanal c. 5-hydroxypentanal d. 4-hydroxyheptanal

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter14: Aldehydes And Ketones

Section: Chapter Questions

Problem 14.27E: Label each of the following structures as a cyclic hemiacetal, hemiketal, acetal, ketal, or none of...

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Diol

In chemistry there are so many chemical compounds that have a hydroxyl group but a chemical compound having two hydroxyl groups (-OH) is termed as a diol. It also implies the presence of two alcohols whereas polyols contain two or more than two hydroxyl groups (-OH). Glycol or 1,2-diol is an aliphatic diol that has two alcohol groups on adjacent carbon atoms. In industries, the most commonly used diol is ethylene glycol.

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