Q: Which molecule(s) are achiral? A. (2R,3R)-2,3-Dichloropentane B. (2R,3S)-2,3-Dichloropentane C.…
A: A molecule is said to be chiral if it can't be superimposed on its mirror image by any means of…
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: Which chair conformation of cis- and trans-1,4-dimethylcyclohexane has the lowest potenital energy?…
A: Cis-1,4-dimethylcyclohexane will have axial-equatorial (a,e) placement of methyl substituents. The…
Q: Provide the structure of the product(s) with stereochemisty if appropriate. If multiple products…
A:
Q: 1- Name the following heterocyclic compounds using Hantzsch- Widman nomenclature only. H N H. ? ? 1-…
A: The main criteria are: the total number of atoms in the ring, both carbon atoms and heteroatoms…
Q: H3C. CH3 .CH3 H H3C. CH2 H3C @ CH3
A: Tertiary carbocation is more stable than secondary carbocation which is more stable than primary…
Q: Rank the following in order of increasing stability (least stable to most stable): A В D
A: Interpretation- To determine the order of increasing stability of all the given alkenes ( less…
Q: d) C4H6 e) C4H8Br2
A:
Q: Rank in order of stability from least to most stable. I. II.
A:
Q: a. How many vinylic hydrogens does cyclopentene have? b. How many allylic hydrogens does it have?
A: a) The hydrogen which is bonded to a vinylic carbon (sp2 carbon of an alkene) is called vinylic…
Q: Br2 (g) FeBr3 CI CI Br2 H2NNH2 В C (h) A FeBr3 AICI3 OH (Give all products) NH2 HNO3 (i) H2SO4
A: #(g): Br2/FeBr3 add a -Br group to a benzene ring. The reactant has two groups attached which are:…
Q: In some nucleophilic substitutions under SN1 conditions, completeracemization does not occur and a…
A: (a)
Q: Name each alkene and specify its configuration by the E,Z system.
A: This given alkene has configuration :
Q: 1. Arrange the following substances according to increasing boiling point? Explain why. I.…
A:
Q: a) b) Draw the product of the first step as well as the second step including stereoisomers مهم O₂N…
A:
Q: carbonyl oygen carbonyl carbon cyclohex-2-en-1-one 2) * of atoms involved in consugared pi-systom?…
A: The following thumb rules can help in order to determine the stability of resonating structures:…
Q: 14. Add substituents to the two chair conformations of the trisubstituted compound. Energy, Energy_…
A: The trisubstituted conformer contains three substituents on the cyclohexane ring.
Q: Rank the following carbocations from least to most stable: I. I. III. IV. III. < |I. < IV. < I. O…
A:
Q: In some nucleophilic substitutions under SN1 conditions, complete racemization does not occur and a…
A: The percentage optical purity of R-isomer of 1-phenylpropan-1-ol is calculated as shown below where…
Q: CH3 CI CH3 H20 (а) CH3 H20 (b) CH3-CH- -ċ-CH3 Br H20 Specify E and Z products (с) Нeat
A: E1 mechanism involves two steps. In first, slow step carbocation intermediate is formed. In second…
Q: a) b) c)
A:
Q: Rank the stability of the following alkenes from least to most stable. а. b. с. (А) а, b, с (B) b,…
A:
Q: 1 Order each of the following sets of compounds with respect to Sx2 reactivity: (a) CH3 CI H3C-C--CI…
A:
Q: Order each set of compounds with respect to SN2 reactivity: CI CH3 H3C-C-CI (a) CH3CH2CH2CI…
A: Alkylhalides undergo Nucleophilic Substitution reactions Reactivity order of alkylhalides is…
Q: Question 4 What stereochemical and/or molecular requirement needs to be satisfied for an E2…
A:
Q: Answer the following questions for the MOs of 1,3,5-hexatriene: a. Which are bonding MOs, and which…
A: a. The structure of 1,3,5-hexadiene H2C=CH-CH=CH-CH=CH2 Six p-orbitals are present in…
Q: Addition of HCl to alkene X forms two alkyl halides Y and Z. Explain why addition of HCl occurs at…
A: Stability of carbocation=benzyl cation > allyl carbocation > 3° >2° > 1°
Q: А. `NH2 + CH3CH2O- B CH3 + H3C H3C
A: Correct option is (B) Because acetate ion is a weak base . Anion of acetate is stabilized by…
Q: give both answer just with little bit explanation 10. (6) Blank 1: which is product X. Type a letter…
A: I have given the answer in the explanation section. Hope you will understand that.
Q: 1. Provide the products for the given reaction. Give the stereochemistry (cis/trans) of the product…
A: Answer Provide the product for the given reaction with…
Q: Rank the following carbocations in terms of stability from lowest to highest. to A B C D
A:
Q: IV II ||
A:
Q: Select to Draw OsO4 (catalytic) NMO OH OH
A: Write reactant of the given product---
Q: 9 Rank carbocation increasing stability 2, (3 *?" Did they orden EX: 2434 I
A:
Q: (d)Predict the stereochemistry of the final product with proper explanation. Me ??? Me Me THF (+)
A:
Q: Which alkyl halide from the following pair is (i) Chiral and (ii) undergoes SN1 reaction faster?(a)…
A: SN1 is the type of nucleophilic substitution reaction which proceeds via formation of carbocation.…
Q: Naproxen, sold under the brand name Aleve among others, is a nonsteroidal anti- inflammatory drug…
A:
Q: II III
A: Stability of alkane is depends upon branches and heat of combustion.
Q: Rank the following carbocations from most stable to least stable. +) +) A B C
A:
Q: Explain Dickmann cyclzation ?
A: Dickmann cyclization or dieckmann condensation is named from the german scientist Water Dieckmann.…
Q: e) Describing the boding in ethene using VBT: One C=C bond, consisting of (state how many, 1,2,3…
A:
Q: Arrange the following groups in the order of increasing priority (lowest priority to highest…
A: Polar covalent bond:The covalent bond is formed by the sharing of electrons between the atoms. If…
Q: What sequence of reagents would produce the folloing? (A) (B) (C) (D) 1. 2. Zn, HCI ??? AlCl3 CI,…
A:
Q: In some nucleophilic substitutions under SN1 conditions, complete racemization does not occur and a…
A: (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: In which species (NO3- or CH3NO2) are the N-Obond(s) longer? In which species (NO3- or CH3NO2) are…
A: There is only one single bond and a double bond between the nitrogen atom and oxygen atom of CH3NO2.…
Q: 11) which molecule below has S-configuration? A B D
A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…
Q: When trans-[CrCl2(NH3)4] * is reacted with one equivalent Nal, trans- and cis- [CrCI(I) (NH3)4] *…
A:
Which is a pair of enantiomers? Explain why.
Step by step
Solved in 2 steps with 1 images
- The correct statement(s) for the following addition reactions is (are) H3C 1. BD3 THF i) M and N 2. H2O2, OH CH3 H3C CH3 1. BD3 THF ii) O and P 2. H2О, ОН- H [0] and [P] are identical molecules [M] and [N] are enantiomers First reaction yields racemic mixture; whereas second reaction yields meso isomers Total three fractions obtained, when we distilled product mixture of both the reactions5) relationship between the pairs of structures. NOTE: Each term may be used more than Choose the term from the five terms listed below that BEST describes the once and not all terms need be used. Identical Diastereomers Enantiomers Constitutional isomers Not isomers CH3 CH3 ÇI H3C-Br CH3 Br -CI H,C. D-H H3C- Br H- -D Br CH3 -CI ČH3 OH H3C, CHO OHC, OH OH H. HO CHO OHC CH3 H. OH ÓH2.) Which is a pair of enantiomers? CH3 H3C CI CH;CH2CH3 CH3 CH3 CH;CH;CH3 H3C CI CH;CH2CH; II II CH,CI CH;CH2CH3 H3C CI CH;CH2CH3 IV V A. I& II and III & IV В. I & II С. II & IV D. IV & V
- - с app.101edu.co Identify which of the following compounds is meso. I H₂CO H III H C H₂CO HCI Н A) 1 B) II Question 52 of 67 C) III D) IV OCH H₂CO "CH3 H C H CH₂ OCH₂ IV Н H₂CO H.C Н OCH, "H CH3 CH3 OCH₂ S В SubD. HOw many aistinct terminal alIKynes exist with a molecular formuia of C5H8! c. How many distinct internal alkynes exist with a molecular formula of C6H10? 4. Which of the following has the lowest b.p? a. 3,3-dimethyl-1-butyne; b. 1-hexyne с. 2-heptyne; d. 3-hexyne; e. 1-decyne. 1 5. Will the reactions shown below go the direction as indicated? + CHOMaBr CHConsider compound Q shown below (trimethylcyclohexane isomer). compound Q Which of the following is the most stable conformation of compound Q? I ||| CH3 Select one: O A. II OB. I O C. III O. D. IV H CH3 H CH3 H H- CH3 CH3 H CHS ||| H IV CH3 H CH₁ CH3 fff, H CH3 CH3 CH3
- H3C --CH3 Which structure(s) below represent(s) the diastereoisomer(s) of the compound on the picture? Br CH3 C CH3 A B CH3 H3C 'Br Br CH3 H3C Br CH3 E CH3 --CH3 H3C.. Br Br Br H3C -.2)- Determine the total number of conformers of the tetra-substituted cyclohexane structure given below (L.e, Draw the chair conformers of A that are, 6-levels of stability from the most stable of A, the sixth most staat conformer ofA, 9-levels that is unstable from the most unstable of A, and 5-levels of insta from the most unstable of A and the conformers of A that is representative of B. Note, only a total of six structures should be written on your paper. Also, include hydrogen atoms wherever are substituents on all of your chair conformers. Note, a table listing is a requirement for this problerm Answer (Total # of Conformers of A): 6-Levels of stability from the most stable of A: The sixth most stable conformer of A: 9-Levels that is unstable from the most unstable of A 5-levels of instability from the most unstable of A 스 Conformers of A that is representative of B:please explain (2 R,4 S)-2,4-Dichloropentane and (2 S,4 R)-2,4-dichloropentane are: O A. constitutional isomers. O B. enantiomers. O C. diastereomers. O D. identical. O E. conformational isomers.
- 3. Determine the relationship for the following pairs of structures. Use "E" for enantiomers, "D" for diastereomers, "C" for constitutional isomers, "S" for same, and "NS" (not same) for different compounds. a. b. с. d. е. f. Н н iPr "Де Br Br OH CH3 CH3 Ή OH OH OH Br Br CH3 CH3 Br -Н НО -Н H3C -ОН COOH Br Br Br Н H3C- Br OH CH3 Н CH3 iPr CH3 Н- -Br НО _H H OH OH CH3 ОН -OH COOHС. (1) BH3 (2) H,O,. H,O, NaOH Product is (circle one) i. A racemic mixture ii. A single enantiomer, iii. Achiral or meso D. txt. CI Ci(a) Classify each of the following pairs of structures as constitutional isomers, conformational isomers, configurational isomers or identical. Br and Br Br NH, CH, HO но H,C. ii. and CH, CH, Vi. and он Ph CH, он CH, Ph iv. and