OVVLv2 | Online teaching and Luis ? ??Owestcengagenow.com irnflakeAssignment/tak

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OVVLv2 | Online teaching and Luis ? ??Owestcengagenow.com irnflakeAssignment/takeCovalentActivity do?locator=assignment take&takeAssignmentSessionLocator;=assignment take :::Apps Apple Bing G Google D Yahoo G Google?Apple D Bing Imported From Safari Chapter 17: Mastery f pts Specify the reagent you would use in each step of the following synthesis; CH step 1 step 2 OH Reagents Available k. CH3CH2MgBr a, LiAlH4 f.PBr3 b. H2S04 g. Dess-Martin periodinane (DMP) I C&H5MgB; c. HCI d. HBr e. SOCl2 CH3MgBr m bromide) 8. Syntheses Involving Alcohols 1 pts 2reo h. NaH m. (CH3)2CHMgBr n. Cro3 i. NaOH Question Write the letters of the reagents in the boxes below. Reagent for step l Reagent for step 2 Submit Answer Retry Entire Group 7 more group attempts remaining Progress 6r8 groups Due Apr 22 at 11:55 PM Next Finish Assignment Email Instructor Save and Exit Cengage Learning

Explanation / Answer

The answer to first and second questions is given below:-

1. For the transformation in question, one needs to add a methyl group to the molecule, the strategy will be to convert the primary alcohol to an aldehyde using DMP and then react the aldehyde with a Grignard reagent (CH3MgBr, J).

Reagent for step 1 - G

Reagent fro step 2 - J

2. One can follow strategy, similar to the above question to synthesize the given compound. Use ethanol as the starting reagent, and oxidize the primary alcohol to the aldehyde using DMP. One can then use Grignard reagent ((CH3)2CHMgBr then H3O+, M) as the source of the remaining hydrocarbon chain to get the desired molecule.

Starting material = 2. Ethanol

Reagent 1 - N - DMP for the oxidation of primary alcohol to aldehyde

Reagent 2 - M - (CH3)2CHMgBr then H3O+ for the alkyl group addition to the aldehyde

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