Q1: The shrub ma huang contains two biologically active stereoisomers ephedrine and pseudoephedrine-with two stereogenic centers as shown in the given structure. Ephedrine is one component of a once popular combination drug used by body builders to increase energy and alertness, while pseudoephedrine is a nasal decongestant. a. Draw the structure of naturally occurring (-)-ephedrine, which has the 1R,25 configuration. b. Draw the structure of naturally occurring (+)- pseudoephedrine, which has the 15,25 configuration. c. How are ephedrine and pseudoephedrine related? , d. Draw all other stereoisomers of (-)-ephedrine and (+)-pseudoephedrine and give the R,S designation for all stereogenic centers. OH Ephedrine 1S 2.5

Q: Trabectedin, shown in a ball-and-stick model on the cover of this text, isan anticancer drug sold…

A: There are 7 stereogenic centre present in the structure of trabectedin.

Q: 2. What is the stere Br Hy Br and H. CI CI

A: Stereoisomerism is the kind of isomerism, in which molecules have same molecular formula, but…

Q: H3C CH3 НО OH For this molecule, draw the structure of the pair of enantiomers.

A:

Q: Assign the configuration to each asymmetric carbon as R or S. NO2 (b) NO2 (c) (d) OCH3 (a) Br

A: (a)

Q: 3- 4- 1,6,3,4-Dithiadiazaocine 1,2,4,6-Oxatriazepine 5- 9H-1,8,2-Oxathiazonine

A: The prefix names and the order of priority of hetero atoms of heterocyclic compounds are  Oxygen -…

Q: • Question 4: (a) Label the four stereoge (b) How are sorbitol and A related? (c) How are sorbitol…

A: given : structure of sorbitol A and B

Q: Identify the RELATIONSHIP of the two structures: O a. conformers O b.identical C. different…

A: Here we are required to find the relationship between the two compound

Q: Two disubstituted cyclohexane molecules are depicted. Classify the pair as the same compound,…

A: Molecules with the same chemical formula but different arrangements in space are called isomers.…

Q: Consider the compound below.   a) Draw the structure showing stereochemistry, in which carbon 1 has…

A: Chiral carbon:-Chiral carbon is tetrahedral carbon (having SP3 hybridisation) which has four…

Q: 1) For each pair of structures, determine if they are identical (I), resonance forms (RF),…

A: Note: Since you have posted a question with multiple sub parts, we will provide the solution only to…

Q: How many tetrahedral stereogenic centers does PGF2α contain? Draw its enantiomer. How many of its…

A: First structure of PGF2α noted as shown below,

Q: 13. How many possible stereoisomers are there for Crestor Ⓡ (rosuvastatin), a medication used to…

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Q: How many degrees of unsaturation does each of the following drugs contain? a.zolpidem (sleep aid…

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Q: Determine the configuration of each stereogenic center in the compound below. Highlight the carbon…

A:

Q: А. ОНС -СООН ОН Но-

A: Concept : CIP rule  1) E/Z system can be assigned based on the CIP rule of nomenclature.  2) E is…

Q: Which of the pairs of compounds are enantiomers (optical isomers)?

A:

Q: 16. With two chiral centers present, we can realize stereoisomers that are (R,R), (S,S), (S,R), and…

A: Diastereomers are the isomers that are non mirror images of each other , these  stereoisomer have…

Q: НО. ОН ОН О (b) ОН ОН (a) Н. ОН ОН ОН ОН o-| I -ОН

A:

Q: 5. What are the structures of A, B, and C? NaOCH2CH 3 CH3CH,OH, A NBS A B hv CHO CH2=CHCO,H 1. O3 2.…

A: NBS in the presence of light causes allylic bromination NaOEt/EtOH causes elimination Conjugated…

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A: Given reaction,

Q: ■0000 not isomers constitutional isomers diastereomers enantiomers identical compounds b) ☐not…

A: Here we have to predict the relationship between the pair of structures whether constitutional…

Q: How many stereogenic centers are there in the following molecule (the naturally occurring…

A:

Q: Locate the stereogenic centers in attached molecule. Compounds may have one or more stereogenic…

A: A stereogenic center is the Carbon atom bonded to four different groups.

Q: 4. A compound has two carbons each with the same set of four different substituents, but does not…

A: The carbon that is attached with the four different substituents is termed as chiral carbon or…

Q: Q2 Give the stereochemical relationships between each pair of structures. Examples are same…

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Q: Locate the stereogenic centers in attached molecule. Compounds may have one or more stereogenic…

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Q: 10. Draw all isomers of difluorochlorobutane including stereoisomers

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Q: 13. How many stereoisomers does the following structure have? OH HC. CH3 a. 6 Ob.4 О с. 3 Od.2 OH OH

A: Chiral carbon: The sp3 hybridized carbon atom that is attached to the four different types of atoms…

Q: 1) For each pair of structures, determine if they are identical (I), resonance forms (RF),…

A: We have to choose the correct relationship for each pair.

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A: Grignard reagents (RMgX) is one of the special reagent, as the carbon attached to the magnesium atom…

Q: Compounds Relationship F а) CI Br Br. b) F F c) НО d) НО H H. II..

A: If tow compound has same molecular formula and the same arrangement of the molecule, it will be…

Q: Draw all stereoisomers and indicate which ones if any, are meso compounds...

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Q: In the following reaction which species acts as the nucleophile? OCH,CH3 (H3C),N, CH;CH,OH OCH,CH3…

A: Since you asked multiple question we will solve first question for you. If you want to specify…

Q: Fentanyl is a synthetic opioid that is used for pain management. Fentanyl has a piperidyl ring - a…

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Q: Which has a Your stronger C-C bond, C₂ or C₂¹? Explain your answer.

A:

Q: Write the letter of the pair of compounds that illustrates the given isomerism.

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: 10. A C Which of the compounds below can exist as a pair of stereoisomers (optical isomers)? Choose…

A: When any compound contain Chiral centre it exhibit optical isomerism &  when a carbon is…

Q: H.

A:

Q: 3 In this alkene, highlight the sp -hybridized carbons in red and the sp -hybridized carbons in…

A:

Q: How many different products are possible for the following reaction?

A: Given is organic reaction. The given reaction is hydrochlorination reaction. NOTE: According to…

Q: Assign R or S stereochemistry to the chiral centers in the molecule to the right. ..... OH

A: An centre that has four different groups bonded to it is called chiral centre.According to…

Q: H H - Does (CH3)2CHCCCH3 show cis/trans isomerism? Explain why or why not.

A:

Q: Assign priorities to the groups in each set. Q.) -CH2OH and -CH2CH2OH

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Alkynes

Alkynes are organic compounds that contain at least one triple bond between carbon-carbon atoms. They are a series of unsaturated compounds with a general molecular formula, CnH2n-2.