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Chemistry LibreTexts

Hofmann Rule

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Hofmann rule is an empirical rule used to predict regioselectivity of 1,2-elimination reactions occurring via E1cB mechanism. It states that, in a regioselective E1cB reaction, the major product is the less stable alkene, i.e., the alkene with the less highly substituted double bond. For example see Hofmann elimination.

see also Zaitsev’s Rule


This page titled Hofmann Rule is shared under a All Rights Reserved (used with permission) license and was authored, remixed, and/or curated by Gamini Gunawardena via source content that was edited to the style and standards of the LibreTexts platform.

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