CHEM235%20Spr%202004%20Exam%202

CHEM235%20Spr%202004%20Exam%202 - Name: CHEM 235 Organic...

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Name: CHEM 235 – Organic Chemistry Mid-Term Examination 2 This Examination is worth 100 points of your final score of 800. Question 1 (12 points) Of the two types of carbonyl compounds, aldehydes are more reactive towards nucleophiles than ketones. Explain why this is so. You may use diagrams and structures as part of this explanation.
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Name: Question 2 (6 points) Whereas tetrahydrofuran may be cleaved under acidic conditions to yield 1,4-butanediol, 2,3-epoxybutane may be cleaved to yield butane-2,3-diol under acidic and basic conditions. Explain the source of greater reactivity in the epoxide. Question 3 (12 points) Select 4 of the following 6 names or structures. Where a structure is given, provide the name of the compound. Where a name is given, draw the structure. Indicate clearly the responses you wish to have graded. O Br O O H O O O O 2,3-epoxy-5-oxo-heptanal 3,4-dichloro-2-methylacetophenone 2,2-dimethyl-1,3-dioxane
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Name: Question 4 (10 points). Identify the class of compound to which each of the following five compounds belong.
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CHEM235%20Spr%202004%20Exam%202 - Name: CHEM 235 Organic...

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