0201-Ch18-1a - Chapter 18 Functional Derivatives of...

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Unformatted text preview: Chapter 18 Functional Derivatives of Carboxylic Acids Carboxyl Derivatives This chapter refers to five classes of organic compounds. Under the structural formula of each is a drawing to help to see its formal relationship to the carboxyl group (= C with three bonds to hetero atom/s). Ch-18 2 H-NH 2 H-Cl H-OR' RC- OH O H-OCR' O RC=N HO H RC- OH O RC- OH O RC- OH O- H 2 O- H 2 O- H 2 O- H 2 O- H 2 O RC N RCNH 2 O RCCl O RCOR' O RCOCR' O O The enol of an amide An acid chloride An ester An acid anhydride An amide A nitrile Ch-18 3 The functional group of an acid halide is an acyl group bonded to a halogen. The most common are the acid chlorides . To name, change the suffix -ic acid to -yl halide . Structure: Acid Chlorides CH 3 CCl O O RC- Cl O Cl O Cl O Benzoyl chloride Ethanoyl chloride (Acetyl chloride) An acyl group Hexanedioyl chloride (Adipoyl chloride) Sulfonyl Chlorides Replacement of -OH in a sulfonic acid by -Cl gives a sulfonyl chloride....
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0201-Ch18-1a - Chapter 18 Functional Derivatives of...

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