Q: hat type of carbocation rearrangement has taken place over the course of the reaction? CI ELOH EtO…
A: Shifting in a chemical reaction is take place because of attain stability.
Q: Which group in each pair is assigned the higher priority? a. – CH3, – CH2CH3 b. – I, – Br c. – H, –…
A: According to CIP rule, priority of atoms or groups depends on atomic number of atoms. In other…
Q: Which is not a meso compound? -S. D. S- А. H2N NH2 Br Br Е. В. Br CHO H- C. HO HO- CHO I O I
A: Stereoisomers are the organic compounds which have same molecular formula and connectivity of atoms…
Q: 5. Which one of the following compounds is the strongest base? Lil (CH3)2NLI LIOCH3 (CH3)3CH O LIOCH…
A: Strong bases are those base which can donate it's electron readily and accept H+ easily.
Q: What is the correct order of reactivity of CH3CHO, C2H5COCH3 and CH3COCH3? O CH3COCH3>…
A: The carbonyl compounds give nucleophilic addition reactions. The carbon atom of the carbonyl carbon…
Q: Use full-headed or half-headed curved arrows to show the movement of electrons in each reaction. d.…
A: a) The electron movement in the given reaction is as follows:
Q: 4. Deduce the type of each reaction below: (a) CH2 CH3 CH3 CH,Ċ=CH2 + HBr CH2 CH3 CH3 CH2 CCH3 Br…
A:
Q: 10. Rank the indicated conformations in order of decreasing stability (from L-R). CH₂ CH3 H CH, Н…
A:
Q: Which compounds are meso compounds? CH;CH2 CH2CH3 CH OH H Br a. b. HOC HOC- H. C. CH3 Br H
A: Meso compounds: These are the compounds having two or more chiral centre (stereo centre) and they…
Q: What reagents are needed to carry out the conversion shown? OH OPCC/CH₂Cl2: H3O+/Br2: NaCN O…
A:
Q: H Br A) CH₂ CH₂ Select its diastereomer: H- H OH -H CH3 CH₂ -OH Br B) C) CH₂ -H ## -Br HO- CH₂ HO- H…
A:
Q: 1. HSCH,CH,CH,SH H BF3 OEt, 2. n-BuLi 3. Br 4. HgCl2 /H,O THF (solvent) 5. heat [3,3] sigmatropic…
A: It is an example of 1,3 dithiane reactionss. In this the aldehyde carbonyl group is…
Q: Identify the least stable carbocation. O CH3* +. O *CH2CH3 O (CH3)3C* O (CH3)2HC*
A: The stability of carbocation depends on the electron donation effect of the groups attached to the…
Q: Describe the 1H NMR spectrum you would expect for each of the following compounds, indicating the…
A: Since you have posted multiple questions, we are solving the first three sub-parts for you; for the…
Q: Draw both diastereomers of 2-bromo-3- chlorobutane by editing the two drawings of 2-…
A:
Q: Which of the following is a correct Fischer projection of the following compound? Br キ中キ中 H- Br Br…
A: Wedge dash projection is that in which the stereochemistry around chiral carbon is represented by…
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: Which carbocation is the least stable? CH3 lo IV. CH;CCH2 I CH;CH2 II. CH3CHCH3 CH3 CH3 I CH3CO V.…
A:
Q: Draw a representation of the transition state for the following endergonic mechanistic step.…
A: To find: the transition state
Q: 9) Which of the following compounds has an S configuration? CI Br CH3 CH3 CH3 HO, H C2H5 H CH2CH2CH3…
A: The correct option with explanation is provided below:
Q: 19. Which compound is not a meso compound? H. (b) (a) CI CH CI CI CI H. (d) H CH (e) CI H Br CH Br
A: Applying concept of plane of symmetry to determination of meso compounds.
Q: 41. Which of the following are anti conformers? CH, H. H. CH, H,C H. CH 'H. CH, CH, CH, II IV A) I…
A: Anti conformation: The conformation in which the alkyl groups at a dihedral angle of 180° is known…
Q: Consider the free energy profile for the transformation A to G: C A What is the slowest step in the…
A: Answer: Whether step is slowest or fastest, that can be determine with the help of activation…
Q: 33. Which of the following are anti conformers? CH, H. CH H,C H. CH H. H,C H. CH, CH, CH, IV 3D A) I…
A: Given conformers are : Which of the following conformers are anti = ?
Q: 4. For each pair state whether the two are a) the same molecule, b) different compounds that are not…
A: On the basis of configuration of chiral centre we decide stereo of following molecule .
Q: Q26) Select a MOST STABLE Conformation for Major Product from the following 3-step reaction…
A: The first step of the reaction is free radical chlorination of cyclohexane. The product of the…
Q: Which of the following molecules are meso compounds? CH2OCH3 сно CH2OH CH2OH H- H- H -OCH3 HO H3CO-H…
A:
Q: CH2CH3 OH H3C. to zig-zag (line) notation (include stereochemistry) Br H a) OH HO" to Newman…
A:
Q: Four carbocations are shown, which can possibly rearrange via hydride shift to a more stable…
A: Only those carbocations undergo rearrangement via hydride shift that lead to the formation of more…
Q: 2 Conseeutive 3,3- sigmatropic rearrangements 2.
A:
Q: H. Br C6 CI H E2 C2 H. CI Br 1) which one is product? 2) which one is least likely? 2.
A: Introduction: Elimination reaction: Elimination reaction is a reaction in which substituent gets…
Q: Which reaction below follows Markovnikov's rule? А. CH;CH,CH=CH2 CH3CH2CH2CH2 ČI CH; B.…
A:
Q: How could the following transformation be accomplished? CH3 CH3 OH A. 1) BH3/THF 2) H₂O₂/OH OB. 1)…
A:
Q: which newman projection displays the proper antiperiplanar orientation for an E2 elimination of the…
A: In an E2 eliminations, the new π bond is formed by overlap of the C-H σ bond with the C-X σ*…
Q: Which structure(s) represent(s) R configuration? CH3 CH3 CH3 CH3 H. CH3 IV II II Select one: O II O…
A: Molecule IV is not chiral , because 2 same groups ( i.e 2 methyl groups ) are attached . Rest 3…
Q: Br, CH,0 CH3 (A) - hv → (B) major product B is :- (1) -Br (2) ОСН, (3) (4)
A: A synthesis is the manufacture of chemical compounds by the reaction from simpler materials or…
Q: Which is the least stable conformer of pentane? H. H H H CH₂CH₂ H CH3 AMA CH₂CH3 H AYA RAT FIR AYA…
A:
Q: A)Circle all of the stereo centers in MDMA. B) assign the absolute stereochemistry (R or S) for each…
A:
Q: Identify the carbocation which can rearrange via a 1,2-methyl shift. CH3 CH3 A В D
A: The stability of a carbocation depends on the number of hyperconjugative H atoms present. The higher…
Q: CH, CH3 CH2 - CH2 - CH-CH CH3. CH3 CH3 CH3 CH3 CH Least stable elipsed configuration Most Stable H…
A: Yes you are true Eclipsed form is if dihedral angle is 0° between group If dieheadral angle is 60°…
Q: (e) 1 2 (f) (g) (h) Br (e) H predict the starting compound Cl₂ heat CH3CH₂O + Na K+1 (f) CH₂OH CH3 H…
A:
Q: allyic 3. CI e) CICH2CH2C(CH3)3 1° alyik f) (CH3)2CCICH2CH3 3° allylic g) CICH2C(CH3)CH2CH3 h)…
A: Primary carbon in which it ia attached to one carbon and if there is any group is present for…
Q: predict the major product of the reaction sequence below
A:
Q: Molecule Chair conformations and energies (kJ/mol) AE %N1 (kJ/mol) Methylcyclohexane H3C. No…
A:
Q: 1. Write the complete name for each of the following compounds including stereochemistr а. b. Br…
A: Organic compounds can be named under IUPAC rules. To specify the configuration of a molecule we can…
Q: (a)Which of the following has Z stereochemistry? • Which of the following has Z stereochemistry? A В…
A: Z notation is used when the most priority group is placed on the same side of the carbon = carbon…
Q: 7- A meso stereoisomer is possible for one of the following compounds. Which one? Br Br Br Br OH OH…
A: Here we are required to find the molecule which is meso
Q: Do the following compounds have the R or S configuration? Drag the appropriate enantiomers to their…
A: First, convert the structures to Fischer projection, then number the groups according to the…
Q: Which conformer of pentane is the least stable? CH CH2CH3 CH,CH, CH3 CH2CH3 H. HCH,CH3 H. H. CH H'…
A: In the Newman projection , when the bulky substituents are Anit staggered to each other , this is…
Q: Assign R or S configuration to the following structures. (i) COOH (ii) CH3 C C CH3 NH2 H CH2 - CH3…
A:
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- What is the structure of this molecule using this HNMR? C7H16O24. The following molecule was subjected to two different conditions. Provide the product in each case. 1. Mel, K₂CO3 2. Ag₂O, A mCPBA, ΔBelow are isomers of tert-butylcyclohexanol in conformational structures. Two are cis-2-tert- butylcyclohexanol and two are cis-3-tert-butylcyclohexanol. Indicate which is the more stable conformation for each pair, and indicate which of all four conformations is the most stable. A OH Ex HO B D OH OH
- what is the most stable conformation of (1R, 2S, 5R)-1,2,5-trimethylcyclohexaneWhat is the unsaturation number for compounds with the formula C6H10N3Br? O 2 O 3 O 4 O 1All of the following conformational models are representative of 2,3-dimethylpentane. Which of these models corresponds to its S isomer? Et Me H. OA Me Me Me H Et Me Me OC. iPr H. Me Me H. OD. Me H -iPr H Me 8.
- The purine heterocycle occurs commonly in the structure of DNA. In what type of orbital does each lone pair on a N atom reside?Structure Systematic Name Br CH3 CH3C=CC=CCHCH2CHC=CH CH2CH3 Y H2C=CHCHC=CH ÇI CH3CHCH2CCH3 Br CH3CHCH2CH2COH | CH3CH2CH=CHCN .CO2H СОН means COOH4. Draw and name 10 structural isomers consisting of 5 C aliphatics of molecular formulaC,H14.
- Using the rule of 13, what is a possible formula for M=120 (100%) on a mass spectrum? C9H12 CsH|NCI all of the above are possible molecular formulasWhat is the degree of unsaturation and structure for C8H5NO2 ?Which molecule is labelled with the correct R and S descriptors? Br., R Br., R Br... S в кон ОА ов ос OD A R В S OH C OH R Br., S D S OH