Q: Which stereoisomers are optically inactive?
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Q: how many of the compounds below are chiral
A: Chiral compound: The presence of four different atoms (or groups) at carbon is known as asymmetric…
Q: Why are these chiral centers when it is connected to two Carbons so not 4 different groups?
A: Given : Structure of Cis 1,2 dimethyl cycloheptane To find : Chiral center
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Q: 1. Hg(OAc)2, H20 2. NajBH4, NAOH OH OH HO Но Но + enjantiomer + enantiomer II IV
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Q: Mark each chiral center in the following molecule with an asterisk. How many stereoisomers are…
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Q: A(n) ________ is an achiral compound that contains chiral centers but is superimposable on its…
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Q: 4. Identify the chiral centers in the following molecule and label each as R or S. Но
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Q: a) Label each chiral center as R/S b) Draw all other stereoisomers c) Indicate which of these is…
A: To assign , R/S nomenclature , we would use Cahn-Ingold-Prelog ( CIP) rules . In this we first…
Q: a. How many chiral carbons are there in the molecule on the left? chiral carbon(s) b. What is the…
A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: The configuration for the enantiomer shown above is a. R b. S
A: To determine R/S configuration of chiral ( asymmetric) carbon , we use Cahn-Ingold-Prelog (CIP)…
Q: 11) Label all chiral centers in the following molecule as R or S F Br
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Q: Locate the stereogenic centers in attached molecule. Compounds may have one or more stereogenic…
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A: Enantiomers are those molecules that are mirror images but non-super imposable. Diastereomers are…
Q: Mark each chiral center in the following molecule with an asterisk. How many stereoisomers are…
A: A chiral center is the one where all the groups attached to the C are different. If there are n…
Q: H. H. H-
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Q: (a) (S)-2-chlorobutane, star (*) each chiral center.
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Q: 2. Label each chiral carbon either as R or S stereoisomers. OH b. HS Br a. H. H2N H
A: Chiral Carbon: The carbon center in which all the 4 attached group is different Then those carbon is…
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Q: 2. Drow the mirror image of each compound, and iabel the compound an chiral or achirai. COOH b. CHs…
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Q: What is the chiral center in each compound. R or S
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Q: Sucrose is a chiral compound, and enantio-pure sucrose has specific rotation [?]? 20 = +66.5°. A…
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Q: ?ls the molecule shown chiral or achiral CH3 CH3 اخترأحد الخيارات a. chiral b. achiral
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Q: Of the isomers shown, which are chiral? Which ones are constitutional isomers of each other?…
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Q: Show the Features of stereoisomers formed ?
A: Organic compounds having the same molecular formula but different structural orientations are known…
Q: Label attached compound as chiral or achiral.
A: The molecules which are non -superimposable mirror image are said to be chiral and this property is…
Q: CH, CH=CHCH(C1)CH3
A: Four stereoisomers are shown below;
Q: Assign a configuration (R or S) at each chiral centres/carbons :OH :Br © :O:
A: To assign the R-S nomenclature , we first number the four groups attached to the chiral carbon atom…
Q: Label the chiral centers as R or S.
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Q: Which structure represents a meso compound? CI ČI CI CI CI
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Q: CH3 H3C CH3
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Q: Circle and name (R or S) the chiral centers
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Q: TsO H HS CH, DMSO
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Q: The [α] of pure quinine, an antimalarial drug, is −165.Calculate the ee of a solution with the…
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Q: identical, constitutional isomers, enantiomers,
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Q: Assign an R or S configuration to the chiral center in each molecule.
A: configuration to the chiral center in each molecule is
Q: 18. How many chiral carbon atoms does chlorocyclohexane have? a) Zero b) One c) Two d) More than two
A: Chiral centre is the one where all the 4 substituents on C are different.
Q: Assign an R or S configuration to the chiral center in each molecule.
A: A chiral center is the carbon which is connected to four different groups. The given compound…
Q: Assign an R or S configuration to the chiral center in each molecule.
A: R (Latin word ‘Rectus’ means right handed) and S (Latin word ‘sinister’ means left handed)-…
Q: On each chair structure identify the relationship of the substituents as cis or trans?
A:
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- . Determine whether the molecules in each pair are the same or enantiomers. H H C CH;CH, a. CH3CH2 l CI CH3 CH3 H H b. H3C HOWCH, Cl но Но CH3 CH3 H CH c. CH3 H HC, CH3 CH3 H;C. H,C || CH2 CH3 CH2CHE 132 Ch. 18 - Carbohydrates 1. Classify the following carbohydrates in terms of the carbonyl type and the number of carbon atoms. a) Ctz-cH-CH-CH-ビーH CH--C2 OH oH OH OH OH ribose dehyinoxyacetone <) H-ċ-CH-CH-CH2 enythrese 2. Identify the chiral centers in the following molecules. HC-CH-CH2 ーC-CH OH OH OH gluperaldehyde dahydroxyacetone C) CH-CH-CH-CH- OH OH OH ーC-H ribose 3. Draw Fischer projections of the following carbohydrates. (do -for moleculed in #2)2. Label each chiral carbon either as R or S stereoisomers. OH b. HS Br а. но, H2N H Ans
- . Determine whether each structure is chiral. CI a. HC-CH, b. CH3-CH-CH-CH3 ČI Cl CH3 c. CH3-CH2-OH CI d. HC-CH2 CH; Br5. Assign R and S to each chiral center. Br H. CI NH2 H, OH H... OCH3 CH3 H. NC A A [ [ Choose ] [ Choose ] [ Choose ] C [ [ Choose ] DA CH,OH 2. в сн-он C CH, Which carbon atom(s) in the compound above is(are) chiral? Oa. A b. В Oc. C Od. more than one is correct Oe. none of the above are correct
- 15. Naming Stereoisomers with Two Chiral Carbons Using the RS System The (RR) isomer of methyphenidate (Ritalin) is used to treat attention deficit hyperactivity disorder (ADHD). The (S.S) isomer is an antidepressant. Identify the two chiral carbons in the structure below. Is this the (R.R) or the (S.S) isomer? Draw the other isomer. HN- H. ..4. Identify the chiral centers in the following molecule and label each as R or S. но H.Q2 Give the stereochemical relationships between each pair of structures. Examples are same compound, structural isomers, enantiomers, diastereomers fa CH. OH HO- OR HO CH, CH. CH,
- 10. Draw the enantiomer of the following molecule. Circle each chiral carbon in the original molecule. a. HO Но H- H- FHO- H- HO- HO,4. Draw the R.R configuration of the following chiral molecule (use the skeleton provided and put groups were they need to go). CHÍCH CH(OH)CH(NH,CH• Question 5: Label each stereogenic center as R or S. CH₂ a. CH₂CH₂ b. CH H 1 NH₂ H CH3 CH₂CH₂ T C. D CI CH3 d. Br C ICH₂ H e. f. H* HO C HOOC CH₂ HO CH(CH3)2 -C₂ C CH3 SH NH₂ H CH3 g. h. .CI CI