- Explain meso conformation and diastereomerism with examples.

Q: A limited number of chiral compounds having no stereogenic centersexist. For example, although A is…

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Q: or

A: At chiral center, chiral carbon have four different groups and this group arranged in decreasing…

Q: Specify the configurations (R or S) of chiral centers a and b in the chem3D structure below. ball &…

A: The "right hand"(R) and "left hand"(S) nomenclature is used to name the enantiomers of a chiral…

Q: Homeotopic, enantiotopic, or diastereotopic? H.

A: The solution is given below -

Q: give the most stable chair conformation given bleow structures

A: The structure of the cyclohexane molecule can be expressed in two conformations: chair and boat. The…

Q: How to easily identify confirmational isomers?

A: Conformational isomers are those structures that are formed during rotation around the C-C single…

Q: provide chari conformations and chair flip, which one is most stable and why?

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Q: a）Draw all other stereoisomers of the molecule, labelling meso forms (if any), and assign…

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Q: Give the correct configuration tor the chirality center (a) in each of the tollowing noleculeini Br…

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Q: cis-Decalin is a conformationally mobile molecule. a) Briefly explain what is meant by this…

A: Decalin consists of two cyclohexane rings fused together, i.e., the ring junctions are adjacent.…

Q: Are they identical, constitutional isomer, enantiomer, diastereomer, meso compound or conformer?

A: Isomerism is the phenomenon in which more than one compound has the same chemical formula but a…

Q: OH

A: Stereoisomers are those isomers that have same molecular formula but different three dimensional…

Q: Without referring to the chapter, draw the chair conformations of  N-acetylglucosamine, glucose with…

A: The open structure of N-acetylglucosamine is shown below.

Q: Me-AS Et R-enantiomer

A: According to CIP rule lone pair must occupy the lowest priority order.

Q: What's the stablest conformation Newmann projection for this molecule looking down the C3-C4 bond?

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Q: Which Newman projection for the conformation of 2-methylbutane will have energy Il on the potential…

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Q: Draw the two chair conformations for the following compound. Explain by calculation of 1,3-diaxial…

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Q: Which of these shows the s-trans conformation of (2Z,4Z)-3-ethyl-2,4-hexadiene?

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Q: compound Chair conformatiors with Steric interactions 1. CH3 My Lo CH3 CHS 0. 1:三

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

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: Convert the following fisher projections into zigzag conformations and fill out the following table…

A: First, we need to convert the given Fischer projections to zig-zag conformations, we follow some…

Q: CI CI CI Give the structures of the two stereoisomers for which

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Q: Draw chair conformations of cis-1-ethyl-3-methylcyclohexane. Is one isomer favored over the other?…

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Q: a) Which structures are Enantiomers? b) Which structures are Diastereomers? c) Which structures are…

A: Enantiomers are chiral molecules that are mirror images of one another and non-superimposable on one…

Q: State which is identical, costiutional, or stereoisomer (if stereoisomer, determine if it is…

A: Identical : These molecules are mirror image which is superimposable to each other is called…

Q: The specific rotation of (R)carvone is -61o. A chemist prepared a mixture of (R)-carvone and…

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Q: A molecule that has chiral centers within itself but is overall achiral due to a plane of symmetry…

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Q: Which of the following describes an atactic stereoisomer?

A: Atactic isomer is the repeating units have no regular stereochemical configuration.

Q: , Which of the following compounds is more stable? To get credit you must draw the most stable chair…

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Q: n the molecule in the image: i) indicate how many stereogenic centres there are and if the molecule…

A: The center in a molecule which is bonded to four different groups is known as chiral center and the…

Q: Provide a structure of an isomer that has the molecular formula CşH12N2 and fits the criteria…

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Q: Give the stereochemical designation for each of the chiral centers pointed out by arrows

A: The solution is as follows:

Q: Which Newman projection for the conformation of 2-methylbutane will have energy II on the potential…

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Q: Assign the absolute configuration of all chiral centres in the compound in the image?

A: There are two chiral carbons  The absolute configuration of the given compound is 1-S and 2-R

Q: Draw the most stable chair conformation possible for this compound. Are there any 1,3-diaxial…

A: Note: Put bulky group like isopropyl in equatorial position and write the most stable chair. Here in…

Q: explain the concept of chirality in organic chemistry?

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Q: clearly explain what type of isomerism is being shown and how it arises. i) Br2C=CH2 ii)…

A: positional isomerism, it is also called position isomerism - isomers have the same functional groups…

Q: The diaxial conformation of cis- 1,3-dimethylcyclohexane is approximately 23 kl/mol (5.4 kcal/mol)…

A: We have been asked to draw the chair conformation and show the unstability of diaxial conformation.

Q: This molecule and its mirror image is chiral or achiral? and what stereocenter do they represent?

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Q: Br

A: R/S designation can be done using CIP rule . And the detail description is shown below

Q: Consider cis-1,2-dibromocyclohexane and trans-1,2-dibromocyclohexane. a. Draw these two compounds in…

A: We have to draw the two conformational isomer in in wedge-dash representation as follows in step 2:

Q: Give the relationship between the two compounds (enantiomers, diastereomers, same) below.

A: Enantiomers are the isomers that are non-superimposable mirror images of each other.  Diastereomers…

Q: Which chair conformation of trans-1-tert-butyl-4-methylcyclohexane is mo stable? Clearly explain the…

A: In the chair conformation equitorial position has less repulsion than axial position so bulky group…

Q: A B

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Q: Is it possible for a meso compound to contain three chiral centers? Why or why not?

A: Solution-; it is not possible for a meso compound to contain three chiral centers,

Q: -, Draw the structure of (2S,3R)-2-bromopentan-3-ol showing proper stereochemistry of chiral centers…

A: Given: IUPAC Name = (2S,3R)-2-bromopentan-3-ol.

Q: the molecule in questionrepresents an enantiomer or ameso compound? This molecule isoptically…

A: We have to Justify, including in its definition the concept of compound meso and enantiomer as…

Q: (a) Draw all other stereoisomers of the molecule , labelling meso forms (if any), and assign…

A: Enantiomers are optically active compounds that are non superimposable mirror images of each other.

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.