Major product: The product that is produced in the greatest amount in a chemical reaction.
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2-Bromo-2-methylpropane 99% of product Major product | | 1-Bromo-2-methylpropane 1% of product Minor product |
When HBr is added to isobutylene, the product mixture consists mostly of 2-bromo-2-methylpropane (the major product),plus a small amount of 2-bromo-2-methylpropane (a minor product). This reaction obeys Markovnikov's rule.