Starting from the structure below (sighting down the indicated bond), rotate the back carbon to provide the structure in the conformation that will be capable of an E2 elimination. R/S stereochemistry is graded. H. CI CH3 CH₂CH3 H CH3

Q: Starting from the structure below (sighting down the indicated bond). rotate the back carbon to…

A: For the E2 elimination to occur leaving group and H on beta carbon should be anti-periplanar.

Q: 1. Draw all of the Newman projections for rotations about the C3→ C4 bonds in…

A: Answer: To visualise the organic molecule, there are different projection formula used. Newman…

Q: Н CH3 1. NaBH4 2. HCI (ac) (10%) conformación antimolansu esin

A: NaBH4 act as nucleophile and attack from less hindered side.C=O have two face, nucleophile attack…

Q: Which one of the following dienes is the most stable stereoisomer in its least stable conformation?…

A: A question based on the stability of alkenes. The most appropriate structure representing the…

Q: Shown are both conformers of menthyl chloride, a diastereomer of neomenthyl chloride. CH3 H H3C CH.…

A: Axial hindered substituents have 1,3 di axial interaction .

Q: 7. Write the structure(s) of the major product(s) for each of the following reactions and show any…

A: Step 1:Reaction (a):Reaction Conditions:Reagent: Br2​Conditions: hv (light), in CCl4, room…

Q: Chair conformation time! Consider the following molecule: Et Ph. iPr NH₂ a. Circle the largest…

A: We need to draw the Chair conformations and find the most stable chair conformation. The following…

Q: 6. Write the structure of the MAJOR product for each of the following reactions, and show any…

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Q: Starting from the wedge-and-dash structure below (sighting down the indicated bond), rotate the back…

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Q: 1. Draw the best chair conformation of cis 1-chloro-4-isopropylcyclohexane.

A: for cis isomer, two groups remain in same direction or same side. Here -Cl and -CH(CH3)2 groups…

Q: 5. The most stable chair conformation of trans 1-isopropyl-3- metnylcyclohexane is: CH 6. Which…

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Q: 40. An E2 reaction can occur from which conformer? CH3 OTS H. OTS H. LOCH3 (A) H₂CO (B) H H CH3 CH3…

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Q: Consider a Newman projection of butane shown. from the strain present in this conformation. H. H H H…

A: From the given Newman projection, we have to identify the number of different strains present. Then…

Q: What is the absolute configuration of the two carbons in this compound? H H BrCH, OA. S-left carbon;…

A: -> For configuration give numbering according to preority then rotate 1->2->3 if clockwise…

Q: Draw the least stable chair conformation of 1-ethyl-4- propylcyclohexane. Why is it the least…

A: Cyclohexane has found in chair conformation.When both substituents are on equatorial position then…

Q: The two alkenes below react with HI at different rates. [References] CH3 CH;CH=CHCH3 and CH3Ċ=CHCH3…

A: Addition reactions of alkene follow Markovnikov's rule in most of the cases.

Q: 5. Draw the best conformation for 1-[4-(2-methyl-2-propanyl cyclohexyl] ethanone in both trans and…

A: Cis and trans are the diastereomers which have same molecular formula but different spatial…

Q: Determine the stereochemistry of the numbered carbon. Write R or S 16. 17. 18. 19. 20.

A: R/S nomenclature is based on the CIP rule which states that higher is the atomic number of directly…

Q: HO C6H₁ A) HO C6Hs PCC CH₂Ch B) C6H5 C6H₁ D) C6Hs

A: PCC is an oxidizing agent used in the oxidation of alcohols. After oxidation, alcohol forms…

Q: Which of the following represents trans-1-ethyl-3-methylcyclohexane in its most stable conformation?…

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Q: 2.* ) Use either one of the chair cyclohexane templates I've provided below to draw the given…

A: If the bulky groups/substituents on the cyclohexane ring are at equatorial position, then there will…

Q: 3. A. What will be the number of stereogenic center in following molecules но. H,C, H .CH3 NCH3 i.…

A: i) For compound i) Number of stereogenic centre = 7

Q: VIII. (-)-Menthol can be isolated from the peppermint plant and is responsible for the…

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Q: H H H H H Hi H. a. b. С. d. е. f. 1. Draw the structural formula of the compound represented by the…

A: Newman projections are used to study the different conformation of alkanes by rotating the carbon-…

Q: Starting from the structure below (sighting down the indicated bond), rotate the back carbon to…

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Q: Which product(s) would be formed in the reaction below with the chair conformation shown? H CH, 'K…

A: Option) a & b are correct choices

Q: Shown below are two different structures representing 1,2,4-trimethylcyclohexane. What is the…

A: The question is based on the concept of stereochemistry.We need to establish the relation between…

Q: 1. Completely name the starting material, then give the Major product(s): (For the aqueous sulfuric…

A: When H2SO4 and water are treated with an alkene, they saturate the akene by adding the OH group to…

Q: 1. Name the following stereospecifically. Br 2. Give the IUPAC name of the following

A: To give the IUPAC name , first we have to see the longest chain of Carbon atom in the compound .…

Q: Do not use chatgpt. Thank you!

A: Most Stable Chair Conformation of a Cyclohexane Derivative Given a cyclohexane derivative, we must…

Q: 11. Trans-1-bromo-2-methylcyclohexane will yield a non-Zaitsev elimination product (3-…

A: Alkyl halides give an E2 elimination reaction with KOH. In the E2 elimination reaction, the removal…

Q: The potential energy diagram will look at the energy levels as the carbon-carbon bond rotates. Let's…

A: Gauche interaction shows by Methyl group at 60 degree angle.

Q: Stereo chemistry Fully Name Elz R/S OR Nome These using EZ I C-C-C 1. Br

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Q: Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. Long and detailed explanations…

A: When one bulky group is at axial position then it will cost two gauche butane interaction. This will…

Q: Draw the major product of the reaction below in the most stable chair conformation. 1. NBS, ROOR 2.…

A: The objective of the question is to predict the product formed in the given reaction.

Q: 10. Which of these describe a set of enantiomers? a. (2R,3R)-2-bromo-3-chloropentane and…

A: Enantiomers are non-superimposable mirror images of each others.  Enantiomers have same IUPAC name…

Q: Write the most stable chair conformation for each cyclonexane below. Br.

A: More the number of groups in equitorial position, more will be the stability of the conformation.…

Q: 3 13. Which Newman projection represents the least stable conformation for cis-1-t-butyl-4-…

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Q: 17. In the space provided below please draw (cis)1,3-dimethylcyclohexane in the most unstable chair…

A: Concept:  1) most unstable conformation meaning that the molecule will have higher energy & this…

Q: carbocations in decreasing order of stability:

A: Stability of carbocation increases by electron releasing groups and decreases by electron…

Q: Which of the described conformations of trans-1-isopropyl-3-methylcyclohexane will be the most…

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Q: Consider the reaction of 1,2-epoxy-1-methylcyclopentane below. It can be reacted with NaOCH3 to form…

A: We know strong nucleophile favours SN2 reaction so attack from less hindered side with inversion in…

Q: Type the name of the following molecule. Be sure to include stereochemistry NH2

A:

Q: How many gauche interactions are present in the most stable chair conformation of…

A: Two conformers can be drawn for 1,1,2-trimethyl cyclohexane.  In one conformer, C-1 and C-2 methyl…

Q: Starting from the structure below (sighting down the indicated bond), rotate the back carbon to…

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Q: Name the following compound. Include the appropriate stereochemistry (R & S). CI All Cl

A: In this question we have given an organic compound and we have to write the name of the compound…

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.