Soluções Sugeridas Capítulo 2

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Chapter 2 Suggested solutions for Chapter 2 7 by a CC bond. The last is straightforward except for the dots used to separate the substituents in the answer to Problem 6). 0 0 H 0 N Me 0 N 0 0 N 0 0 0 Problem 10 the oxidation level of each of the carbon atoms in these structures with some sort of stification. CI CI 0 MeN 0 CI CI Purpose of the problem This important exercise is one you will get used to very quickly and, before long, do without thinking. If you do, it will save you from many trivial errors. Remember that the oxidation state of bon is +4, or C(IV), in all these compounds. The oxidation level of a functional group tells you which oxygen-based functional group it is interchangeable without oxidation or reduction. Suggested solution count the number of bonds to heteroatoms. These can range from none to four. The only tricky are alkenes and alkynes, which have no heteroatoms but are formed by dehydration of cohols, aldehydes, or ketones. There is a summary chart on p. 36 of the textbook, but briefly: to heteroatoms Oxidation level Type structure Examples 0 0 hydrocarbon R-CH₃ CH₃ OH Me Me N H 0 1 alcohol R OH CH₃ OH Me Me N H 0 0 0 0 RO OR 0 2 aldehyde or ketone Me R H R² Me 0 H 0 0 0 0 3 carboxylic acid Me Me R Ho Me 0 Me N H 0 0 0 4 carbon dioxide 0 0 Me Me Me N 0 RO N H H In these cases we have examples of all oxidation levels. Check the answer against yours and the In the case of the alkene, formally a dehydration product from an alcohol, either but not both the C atoms is at the alcohol oxidation level.