Round 5: Tossup 16

One of these compounds was reacted with amines to form amides in a two-phase system of water and an organic solvent by Schotten and Baumann. One of these compounds is dissolved in cyclohexane and reacts with hexa·methylene·diamine in the nylon rope trick. A palladium catalyst turns these compounds into aldehydes in the Rosenmund reduction. These compounds are converted into Weinreb (15[1])amides and treated with Gilman reagents to synthesize ketones. Adding (*) magnesium to these compounds in di·ethyl ether produces Grignard reagents. The most reactive carboxylic acid derivatives are a type (10[1])of these compounds, which react with a Lewis acid in the first step of a Friedel-Crafts reaction. For 10 points, name these compounds that contain a C-X bond and are named for containing a group 17 element. ■END■ (10[1]0[1])

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