Why is conjugate addition also called 1,4-addition ?

Q: CO2H CO,H

A:

Q: Which molecule/molecules are not chiral? Select one or more: OH OH но -OH

A: Asymmetric carbon atom or chiral carbon is a carbon which is attached to four different types of…

Q: How many electrons are involved in this conjugated pi-system? Problem viewing the image. Click…

A:

Q: or

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

Q: which results are the racemic mixture? CHCI3 NaOH PHCO3H Br2 H20

A: (1) When alkene reacts to CHCl3 in presence of NaOH base, it follows the Reimer -Tiemann reaction.…

Q: 7. How many stereoisomers are possible for the molecule to the right? Ме Me Me

A: In stereochemistry, number of isomers can obtained for any organic entity purely depends on the…

Q: Draw all configurational isomers of C4H11N that are optically active.

A: Optically active compounds are those which rotates the plane of polarised light.

Q: 4 3.

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Q: 1) K,CO3 „NO, Ph Ph 2) H*

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Q: re chiral?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following molecules are chiral?

A: Chirality is the property shown by optically active molecules. Also molecules which are non…

Q: Consider the molecule shown here. (a) How many chiral centers does it have? (b) How many total…

A: Chiral carbon: A chiral carbon atom is a carbon atom that is attached to four different types of…

Q: 7. Which of the following is a diastereomer of the molecule below? %3D IV d. IV a. b. II e. C. II

A: Diastereomers are a type of stereoisomers it is defined as non mirror image non-identical…

Q: Click on all structures that are enantiomers of the first (leftmost). fno structure qualifies,…

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Q: Consider the molecules shown here and in the report sheet. OH Br H. Br NH2 B C D Assign the R/S…

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Q: Br. H H3C

A: Absolute configuration can be assigned by giving priority to all groups attached to chiral carbon…

Q: Determine which of the following structures are chiral and meso-forms.

A: check chiral centre and then POS .

Q: Which of the following ions or molecules has a center of symmetry?

A: A center of symmetry: A point at the center of the molecule. (x,y,z) --->(-x,-y,-z). It is not…

Q: Which of the following statements regarding the molecule shown below is FALSE? Br Br a. This is a…

A: The given compound is cis-1,3-dibromocyclohexane. The given compound is meso. It has an internal…

Q: Explain the difference between resolution of optical isomers and racemization?

A: Please find the differences:

Q: Br Br Br Br Br 1 2 3 Which structure is a meso structure? Choose... + Which pair of structures are…

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Q: The lowest unoccupied molecular orbital (LUMO) of 1,3-butadiene is best represented by which of the…

A: 1,3-butadiene is molecule containing 2 double bond H2C=CH-CH=CH2 It has 4 pi electrons It has 4 pi…

Q: What are the RS configurations of the chiral centers?

A: Assign priorities to the groups attached to the chiral centre as per CIP rule(Cahn-Ingold-Prelog) If…

Q: Which statement is not true for a meso compound?

A: A meso compound is defined as a optically inactive member of a set of stereoisomers  or in other…

Q: H CH, is molecule chiral or achiral? CH, H.

A: Attaching a better view of the question:   To find the chiral centers, look out for the centers…

Q: Designate the R/S configuration for any chiral centers in the following molecules.

A:

Q: D) Identify the compounds that are not chiral. Br Br B D Br

A: The given compounds contain a cyclohexane ring. The carbon atom attached to four different groups…

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: но NH2 HO. `NH2 он

A:

Q: CI ÓH он HO Br CH3 Br

A: Asymmetric center: asymmetric center is  the Carbon having all four different groups around it.

Q: Determine the symmetry of the IR active C-H stretching modes for cyclohexane chair conformation

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Q: Is this a chiral center? If so, R or S?

A: A carbon atom attached with four different group is called chiral centre.

Q: How Tautomeric shifts change the covalent structure of themolecule ?

A: Tautomerism is defined as the reaction in which transfer of proton occurs in an intramolecular…

Q: Explain with examples: difference between regioselectivity and stereoselectivity

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Q: Predict the R,S configurations for the labelled chiral centers:

A: The R,S configurations for the labeled chiral centres can be predicted as,

Q: 1.) 2.) 3.) 4.) (Racemic) b.) c.) 1.) NaOEt, ELOH, A 1.) NaOEt, EIOH, A 1.) NaOEt, EIOH, A 2.)…

A: In this question, we will select correct sequences of Reagent will give Final Product.  You can see…

Q: Which of the following molecules would be considered chiral? но OH A A B.

A: Answer is  B  Compound B is chiral as it does not have any element of symmetry.

Q: BR H CH3 Is this molecule chiral? If yes, please determine if it is R or S.

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Q: Based on reaction 1, how many isomers can be formed? Is the isomer cis or trans? The target…

A: The answer is as follows:

Q: e structure below, click on each of the chiral centers. Br

A: Structure is given  Chiral Centers = ?

Q: 5. Which of the following compounds is chiral? D. A. B.

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Q: 1. Hg(OAc)2, H2O 2. NaBH4, NaOH OH HO HO HO + enantiomer + enantiomer %3D II IV

A:

Q: Determine if it's chiral or achiral.

A: A molecule is said to be chiral if it has a chiral centre, axis or plane. A chiral centre is the one…

Q: What is a configurational isomer?

A: Molecules having same bonding connectivity same molecular formula but  permanent different…

Q: H. ОН F H. H. F. ISI

A: Which of these do not contain a plane of symmetry?

Q: J

A:

Q: Predict the specific optical rotation of the bicyclic molecule to the right. Briefly explain the…

A: This molecule does not have any optical rotation, because this molecule is achiral and optically…

Q: но, HO он NH2

A:

Q: John's reductor is а. Fe*3 b. Zn amalgam C. Fe*2 d. Cr amalgam

A: Zinс  аmаlgаm is a   very    effeсtive  fоr  reduсtiоns  аs  аre  the  рure  metаls    аnd    they…

Q: Provide a mechanism for  reaction.

A: A mixture of two enantiomers in 1:1 ratio is termed as a racemic mixture. In a racemic mixture, the…

Stereochemistry and Isomerism

Stereochemistry deals with the three-dimensional structure and properties of molecules. It explains the arrangement of atoms and their manipulation within a molecule in a 3D structure. Stereochemistry can be dealt with all types of molecules. Based on the stereochemistry of a molecule, the physical and chemical properties of the molecules vary.