Study Guide Test 1

Study Guide Test 1 - Grignard reagents with. -formaldehydes...

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Grignard reagents with… -formaldehydes give primary alcohols -aldehydes give secondary alcohols -ketones give tertiary alcohols Protic solvents add hydrogen p.8 C14 R-OH: hydrogen bonding, possible acidic H, lone pair accepts p + s R-SH: no hydrogen bonding, more acidic H, lone pair will accept p + s Sorbitol (sugarless gum) -hydrocarbon chain with –OH attached to every carbon -polyol Preparation of alcohols -from alkenes (add H 2 O and H+ OR B 2 H 6 /H 2 O 2 ) -from alkyl halides (SN2 1 o with NaOH or SN1 3 o with H 2 O) -from carbonyl compounds (Add RLi or RMgX and H+/H 2 O) -ring opening of epoxides -reduction of aldehydes and ketones (only 1 o and 2 o alcohols) by hydrogenation -Use of LiAlH 4 and NaBH 4 Ring opening of epoxides -CH 3 X + epoxide followed by H+/H 2 O -NaBH 4 + epoxide in methanol / H 2 O LiAlH 4 reduces everything: replaces esters, -OH’s, and C=O bonds with hydrogens NaBH 4 will not reduce esters Interesting Alcohols in C15 notes 26.11-26.15, p.1087 – 1093 Essays on 1091 and 1094
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This test prep was uploaded on 04/09/2008 for the course CHEM 242 taught by Professor Burnett during the Spring '08 term at UVA.

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Study Guide Test 1 - Grignard reagents with. -formaldehydes...

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