5. Propose a reaction scheme to synthesize trans-3-octene (shown below) using only 1-butene as a source of C in the final structure. (Hint: You will need two equivalents of 1-butene.) You may use other reagents and solvents as needed. Show the product of each synthetic step. The expected yield of the product of a step that is used for subsequent steps should be > 75%. You do not need to show the mechanism. (Hint: Look to PS#1 if you get stuck!)

a) Propose a synthesis route to prepare 3-methylhexan-3-ol from pentan-2-one. Note that more than one step reaction is required and you must show all the reaction steps including preparation of the intermediates.

Draw visual representations of the steps below... 38. Follow the following reaction steps. Step 1: Identify the functional groups in the molecule below. Step 2: React the molecule above with NaBH4. Step 3: React the product in Step 2 with an acid catalyst (protonation) of the remaining carbonyl group. Step 4: Show intramolecular ring closure, followed by methoxy group leaving. regeneration of the carbonyl group, and loss of proton to methoxy group to make metha...

МЕСНANISMS 1,2-epoxy-1-methylcyclopentane undergoes both acid-catalyzed and base-catalyzed opening of the epoxide ring to form two different products. > Using ethanol as the solvent and an appropriate acid, show the steps in the acid catalyzed mechanism, writing structures for all products of the steps. Circle the major product(s). > Using ethanol as the solvent and an appropriate base, show the steps in the base- catalyzed mechanism, writing structures for all products of the steps. Circle the major product(s). 1,2-epoxy-1-methylcyclopentane CH3

MN.18.

Draw the structure of the product of each step in the three-step synthesis. Show the formal charges, if applicable. As a start, the benzene ring is drawn for you in each product. Although the first step produces a mixture of isomers, the para isomer is isolated as the sole product of interest and used in the second step. Give only the major product for the second and third steps. Br₂ FeBr HNO3 H2SO4 Br₂. FeBra Product 1 Product 2 Product 3 (para isomer) Draw product 1. Select Draw Templates More с H Br Draw product 2. Erase Select Draw Templates More c Q2Q Draw product 3. Select Draw Templates More с H N о Br Erase c Q2 Q + CH N о Br Erase QQQ

Hi, it's one question please show all the work clearly

Synthesis: Synthesize the following compounds using the starting material shown a reagents you may need. Show the product after each step. You do not need to shc and I will assume standard work up unless you indicate otherwise. HO, ÕH

Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration and without rearrangement give 1-methylcyclohexanol as the major product. • You do not have to consider stereochemistry. • You do not have to explicitly draw Hatoms. • If more than one structure fits the description, draw them all. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate structures with + signs from the drop-down menu. ● 8) *9.8 MUIT / ? ChemDoodle [ ] remove

ACHN a) Show the product in the provided small box. b) Draw a detailed step-by-step MECHANISM. In the mechanism show all relevant lone-pairs, charges and mechanistic arrows. Show all structures of formed intermediates, organic or inorganic. NHR OH 1. Dess-Martin-Periodinane (DMP), CH₂Cl2, room temp. 2. NEt3 product (precursor of Oseltamivir)