a.) Classify the following carbocations (1°, 2°, or 3°). b.) Encircle the carbocation/s that can rearrange to a more stable structure. CH3 CH3 CH3 CH2 CH2 CHy-+ CH3
Q: Explain the attached statement is true or not ?
A: Given:
Q: CHO [C2]= accomplish the synthetic transformations using any reagents containing NO MORE THAN 2…
A: A Grignard reagent is vastly used in organic synthesis to introduce a new C-C bond in a molecule.…
Q: Rank the following from most reactive to least reactive in an E2 reaction:
A:
Q: QUESTION 1 Circle the best dienophile CH3
A: In Diels-Alder reaction dienophile is the 2pi system .
Q: Circle the stronger acid. CH2-CH2-OH CH3-CH-OH F
A:
Q: 1) Br2, heat 2) 2 equiv. NaCN DMF
A: When 1,3-butadiene react with Br2, the reaction will occur through an intermediate bromonium ion.…
Q: help
A:
Q: Identify the most stable carbocation. Select one: О . ОН
A: We have given the organic compound having alcohol as functional group we have to identify the most…
Q: c) What is the "order of stability"(most to least) of carbocations? Use the following list. methyl…
A: Tertiary Benzyl > Secondary Benzyl > Primary Benzyl > Secondary Diallyl > Primary Allyl…
Q: ACROSS 1. stereoisomer that is superimposible on its mirror image 4. reaction that forms a less…
A: Stereochemistry is the branch of chemistry which deals with the arrangement of atoms in space and…
Q: 4. (2 pts) Circle the most stable carbocation and cross out the least stable carbocation among the…
A:
Q: Rank these alkenes according to stability:
A: Alkenes stability can be explained by "hyperconjugation" Displacement of alpha C-H sigma…
Q: Draw an energy diagram for an E2 reaction: (CH3)3CBr + −OH →(CH3)2C=CH2 + H2O + Br−
A:
Q: Which of the following within a tetrahedral intermediate leaves most readily as a nucleofuge? *…
A: A nucleofuge is a species that acts as a leaving group in the reaction. It is a leaving group…
Q: . a.) Classify the following carbocations (1º, 2º, or 3º). b.) Encircle the carbocation/s that can…
A:
Q: Which cycloaddition reaction will proceed the FASTEST? Select one: `CHO OHC. Lons CH3 CHO
A: The given reaction is a Diels Alder reaction where substituted alkene (dienophile) reacts with the…
Q: 2. Circle the molecule that would undergo the fastest E2 reaction. Provide an explanation, using…
A: For the elimination to occur via E2 the leaving group must be axial.
Q: 3. In each pair, circle the species that is more stable. OH2 OH2
A: In the first pair, the second structure is more stable. The stability of the carbonation depends on…
Q: Question 8 Rank the following carbocations from most stable to least stable: II II O III >I> II OI>…
A: Given that, Three carbocations have been given,we have to find out order of stability?
Q: H.C. CH3 CH3 CH3
A:
Q: . Explain why do you choose that product and mechanism or in case something else happens explain…
A:
Q: OCH3
A:
Q: Arrange carbocation in order of increasing stability
A: More the hyperconjugation, more is the stability of the carbocation.
Q: Be sure to aDSwer all parts. Label each stereogenic center as R or S.
A:
Q: (d) Why do you add H2O to CH2O instead of adding H+ to CH2O in order to balance CH3OH -> CH2O ?
A:
Q: For the following pair of carbocations (A and B), select the one that is more stable and explain…
A:
Q: Which properly shows resonance of an allylic system? B C H. O: D
A: Resonating structures are the different structures which are obtained by the movement of pi of…
Q: b. С. + + + a.
A: The reactive intermediate species in which carbon atom forms only three bonds and contains a…
Q: Which alkene is lower in energy? r The alkene on the left is lower in energy The alkene on the right…
A:
Q: Br K* OC(CH)3 K* OC(CH); Br cis trans
A:
Q: What type of carbocation is shown? (+)
A:
Q: . Provide a curved arrow mechanism for the transformation below. OCH3 Br2 enantiomer Br CH3OH
A: addition of Br2 to alkene leading to the formation of a cyclic intermediate stage. attack of…
Q: Draw the major organic product of each reaction. Indicate the stereochemistry at the stereogenic…
A: In this question, we will identify the all four products A, B, C and D A product form via SNi…
Q: i) 2-heptyne 2-heptene A B ОН ii) C D
A: ->partially reduction of alkyne give alkene. ->Reduction of ketone produce alcohol.
Q: How to get CHCl₃ from CH₃COCH₃ ?
A: CH₃COCH₃ is chemical formula for acetone.its IUPAC name is 2-propanoneCHCl₃ is cloroform.is also…
Q: Classify each substituent as electron donating or electron withdrawing.
A: Electron donating group: The group that increases the electron density on the ring. Electron density…
Q: Complete these SN2 reactions, showing the configuration of each product.
A: SN2 reaction or bimolecular nucleophilic substitution has following features: Formation of a…
Q: Draw the following compound on your separate sheet. (1S,2S)-5-(2methylepoxy)cyclopent-2-enol
A: Given name, (1S,2S)- 5- (2 methylepoxy)cyclopent-2-enol
Q: ng carbocations
A:
Q: Which is the MORE STABLE carbocation? + CH2CH2 CHCH3 А. B.
A:
Q: Which one is the least stable carbocation? Select one:
A: Carbocation is planar and sp2 hybridized. It is an electron deficient species. Hence, the stability…
Q: Which group in following pair is assigned the higher priority? −CH2Br, −CH2CH2Br?
A: In R, S nomenclature, the atom or the group which has highest atomic number.
Q: The major product of this reaction exists as two stereoisomers. Draw both isomers. Show all hydrogen…
A:
Q: with HCl and yields four stereospecific products. Draw the alkene. Upload Choose a File
A: The question is based on the concept of organic reactions. we have to identify an alkene which gives…
Q: Write out the 3-step arrow pushing mechanism showing how 1-pentene is hydrated to make 2-pentanol.…
A: Answers to both the question are given below.
Q: What type of carbocation is shown?
A: As we can clearly see that the positive charge (cation) containing carbon is attached to two carbon…
Q: 1. Draw the major and minor products. Circle the major product. CH3 CH3-C=C-CH3 H* H20 H. a. C. b.…
A: Que-1 , Given reaction is hydration reaction in which water is added on alkene to give alcohol as…
Q: Classify each carbocation as 1°, 2°, or 3°.
A: Primary or 1o carbocation is the carbon in which the positive charge is attached to the carbon which…
Q: Rank the following carbocations from most stable to least stable:
A: Since more is the resonance of +ve charge on Carbon, more it will be delocalised. Hence more will be…
Q: How Electron-withdrawing groups destabilize the carbocation ?
A: The electron withdrawing groups (must contain an electronegative atom) are those which has tendency…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- 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? a. – CH3, – CH2CH3 b. – I, – Br c. – H, – D d. – CH2Br, – CH2CH2Br e. – CH2CH2Cl, – CH2CH(CH3)2 f. – CH2OH, – CHOA hydrocarbon of unknown structure has the formula C8H10. On catalytichydrogenation over the Lindlar catalyst, 1 equivalent of H2 is absorbed. Onhydrogenation over a palladium catalyst, 3 equivalents of H2 are absorbed.(a) How rnany degrees of unsaturation are present in the unknown?(b) How many triple bonds are present?(c) How many double bonds are present?(d) How many rings ar e present?(e) Draw a structure that fits the data.
- The 1,2‑dibromide is synthesized from an alkene starting material. Draw the alkene starting material. Clearly, show stereochemistry of the alkene.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. Hyperconjugationi. 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
- Rearrangements can occur during the dehydration of 1° alcohols eventhough no 1° carbocation is formed—that is, a 1,2-shift occurs as the C—OH2+ bond is broken, forming a more stable 2° or 3° carbocation, asshown in Equation [1]. Using this information, draw a stepwisemechanism for the reaction shown in Equation [2]. We will see anotherexample of this type of rearrangementDraw the products of the following reactions. Use curved arrows to show where the pair of electrons starts and where it ends up. a. ZnCl2 + CH3OH b. FeBr3 + Br c. AlCl3 + Cl−Rank the following carbocations according to stability (1: most stable, 5: least stable.)