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- 10) Synthesis: Make the following products from a suitable cyclic alkene starting material. Look at the functional group PATTERN present in the molecule, including stereochemistry. ♡ Br Br1. List the following alcohols in order of increasing reactivity (least reactive first) toward dehydration with concentrated sulfuric acid. a) CH,CHOHCHз b) (CH3CH2)3COH c) CH3CH2OH 2. Complete the following equations for dehydration reactions. List all the alkenes that could be formed. OH OH H* H* a) (CH;CH2),CCH3- b) ningla s bru10) For the reaction between isopropyl 1-propyl (or 'n-propyl') ether and HBr, which type of reaction best matches the expected products? A) Acid-catalyzed dehydration B) Nucleophilic substitution reaction C) Ether cleavage reaction D) Nucleophilic addition-elimination reaction
- Which alkene is required to complete the reaction in Figure 10? * A B C D All of these alkenes will form this alcohol.in the electrophilic addition reactions exemplified in Scheme 1, Br2 is the a) nucleophile b) electrophile c) acid d) base e) arenePlease draw out all missing parts of the reaction like as in reagents, products starting materials) H3C CH3 H30", A H,CH,Co OCH,CH;
- [10] 10] Q1. Do the following conversions as directed. Write the complete reaction equation. (a) Benzaldehyde to Benzoic Acid. (b) Propanal to 1-propanal (c) Cyclohexanone to Cyclohexanol (d) Acetaldehyde to Ethyl alcohol (e) Acetone to Iso-propyl alcoholDraw a structural formula for the alkene you would use to prepare the alcohol shown by hydroboration/oxidation. CH3 HO CH3 •You do not have to consider stereochemistry. •You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. H3C-CH3 n [ ?organic chemistry
- 4. A student was asked to prepare an alkene X in high yield using any alcohol as starting material CH3 CH,-C -CH=CH, CH3 X He chose 3, 3-dimethylbutan-2-ol (XI) and carried out a dehydration reaction. He was however horrified to note that the only alkene obtained was XII. CH3 OH CH3 CH;-C=C-CH3 conc. H,SO4 CH-CH3 heat CH3 CH3 XI XII i) Explain what went wrong here, and why X could not be formed from 3, 3-dimethylbutan-2-ol. Use structures to help support your answer. ii) Give an equation to show a much better method for preparing X in high yield. 5. Analyze the following structure and write one combination for Grignard reagent and a carbonyl that would give rise to it. CH,-CH,-OHAlcohols undergo an oxidation reaction to yield carbonyl compounds on treatment with CrO3. For example, 2-tert-butylcyclohexanol gives 2-tert-butylcyclohexanone. If axial OH groups are generally more reactive than their equatorial isomers, which do you think reacts faster, the cis isomer of 2-tert-butylcyclohexanol or the trans isomer? Explain.Draw a structural formula for the missing organic product in the reaction below. H₂SO4 + + CH3CH2OH ? H₂O H OH • You do not have to consider stereochemistry. •You do not have to explicitly draw H atoms. CHA ?
