Draw the major product of the reaction below in the most stable chair conformation. 1. NBS, ROOR 2. Br₂, CCl4 Maior product in the most stable chair conformation
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- a. How many s bond orbitals are available for overlap with the vacant p orbital in 1. the isobutyl cation? 2. the n-butyl cation? 3. the sec-butyl cation? b. Which of the carbocations in part a is most stable?Which group in each pair is assigned the higher priority in R,S nomenclature? a.−CD3, −CH3 b.−CH(CH3)2, −CH2OH c.−CH2Cl, −CH2CH2CH2Br d.−CH2NH2, −NHCH3Draw the Newman projection (sighting down this bond) of the conformation that will be capable of an E2 elimination. R/S stereochemistry is graded.
- 1. Which among these would be the most stable carbocation?a. Allylicb. Vinylicc. Primaryd. Secondary2. What is the primary reason for the stability of tertiary carbocations?a. Free rotationb. Resonancec. Hyperconjugationa.Draw three-dimensional representations for all stereoisomers of 2chloro-3-methylpentane, and label pairs of enantiomers. b. Considering dehydrohalogenation across only C2 and C3, draw the E2 product that results from each of these alkyl halides. How many different products have you drawn? c. How are these products related to each other?i. Fill in the missing starting materials, products, or reagents as necessary. ii. Label each transformation as SN1, SN2, or acid/base. iii. Indicate if the product is racemic or a single enantiomer
- The alkene shown undergoes bromination. (a) Draw the product(s) of bromination of this compound, including all expected stereoisomers (if any). Use wedge‑and‑dash bonds to designate the stereochemistry at any chirality centers, and make sure to draw an explicit hydrogen if a chirality center has one. (b) Characterize the starting alkene as having the E or Z configuration. (c) characterize the product(s).1. What are products formed from the below reaction? 2. Draw the stereoisomers and name them. Hint: There are two different constitutional isomers and each constitutional isomer has 2nstereoisomers.a. Draw three-dimensional representations for all stereoisomers of 2-chloro-3- methylpentane, and label pairs of enantiomers.b. Considering dehydrohalogenation across C2 and C3 only, draw the E2 product that results from each of these alkyl halides. How many different products have you drawn?c. How are these products related to each other?