organic-2-organic-chemistry-brown-351-ch-17-carboxylic-acids-3595.pdf

O o oh o ho organic brown 8e ch 17 carboxylic acids

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O O OH O HO ORGANIC - BROWN 8E CH. 17 - CARBOXYLIC ACIDS Page 6
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CONCEPT: REDUCTION Reducing agents are used to reduce molecules These reagents add hydrogens across π -bonds. Unsaturated hydrocarbons and carbonyls can be reduced. General Mechanism: Nucleophilic addition of hydrogen Reducing agents add to ALL π -bonds present. Multiple equivalents of hydrogen will react if possible. LiAlH 4 is a strong reducing agent. It is able to reduce ANY carbonyl compound into alcohol EXAMPLE: Draw the products of the following molecules reacted with LiAlH 4 NaBH 4 is a weak reducing agent. It can only add ____ equivalent of oxygen and can only reduce CHO and ketones EXAMPLE: Draw the products of the following molecules reacted with NaBH 4 ORGANIC - BROWN 8E CH. 17 - CARBOXYLIC ACIDS Page 7
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PRACTICE: Predict the product of the following reactions a. b. c. ORGANIC - BROWN 8E CH. 17 - CARBOXYLIC ACIDS Page 8
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CONCEPT: FISCHER ESTERIFICATION MECHANISM Also known as acid-catalyzed esterification , this is one of the more important mechanisms in this course.
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