Organic Chemistry

Learn the toughest concepts covered in Organic Chemistry with step-by-step video tutorials and practice problems by world-class tutors.

12. Alcohols, Ethers, Epoxides and Thiols

Naming Epoxides

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There are 3 distinct ways to name cyclic ethers. But before we get into them, let’s first specifically define what an epoxide is.  

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concept

Defining what an epoxide (oxirane) is.

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Cycloalkane Convention

Name the ring as a cycloalkane, adding the prefix oxa- and location if necessary.

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concept

How to name cyclic ethers using the cycloalkane convention.

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Epoxy Convention

Name as a typical alkane, and then include epoxy as a di-located substituent. 

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concept

How to name epoxides using the epoxy convention.

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Oxide Convention

Name as an imaginary alkene, then follow with the word oxide

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concept

How to name epoxides using the oxide convention.

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Note: I forgot to address in the videos that both of these would be trans due to the alkyl groups facing opposite sides of the ring.

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Problem

Which of the following is the correct name of the following compound:

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Problem

Which of the following is the correct name of the following compound: