Interpretation:
The modified procedure to synthesize racemic mixture of
Concept introduction:
Substitution reaction: A reaction in which one of the hydrogens of a hydrocarbon or a functional group is substituted by any other functional group is called substitution reaction.
Elimination reaction: A reaction in which two substituent groups are detached and a double bond is formed is called elimination reaction.
Addition reaction: It is a reaction in which unsaturated bonds are converted to saturated molecules by addition of molecules.
The molecules that are nonsuperimposable or not identical with their mirror images are known as chiral molecules.
The stereoisomers that are nonsuperimposable on each other and not mirror images of each other are known as diastereomers.
The achiral compounds in which plane of symmetry is present internally and consists of chiral centres are known as meso compounds, but they are optically inactive.
Enantiomers are stereoisomers whose molecules contain nonsuperimposable mirror images.
A chiral molecule is one that has a nonsuperimposable mirror image and an achiral molecule is one that has a superimposable mirror image.
Each center is analyzed separately, if the compound contains more than one chirality center.
The designation of each carbon is determined by using the numbers.
When the order of progression from the group of highest priority to that of the next highest priority is clockwise, it is said to be the
When the order of progression from the group of highest priority to that of the next highest priority is anticlockwise, then it is said to be the
The mixture that contains equimolar quantity of two enantiomers is called a racemic mixture.
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EBK ORGANIC CHEMISTRY
- Give explanation of the correct option and explanation of the incorrect options.arrow_forwardThe following compound readily eliminates CO; to form a conjugated six membered ring. (a) Complete the reaction with drawing the possible structure and (b) explain why this reaction goes steadily.arrow_forwardB) Rank the following species in order of increasing nucleophilicity. (A) CH3CH2S-, (B) CH3CH2O-, (C) (CH3)3CO-, (D) (CH3)3COH.arrow_forward
- When norbornene undergoes hydroboration-oxidation, a mixture of two stereoisomers is produced in a roughly 6:1 ratio. (a) Draw both of these isomeric products. (b) Which product is favored? Hint: You should build a model of norbornene and consider the transition state leading to each product. 1. BH3 THF ? 2. H2O2, NaOH, H,O Norbornenearrow_forwardSolve this attached filearrow_forwardCompound 1 has been shown to be a useful precursor in the synthesis of natural products. (Org. Lett. 2004, 6, 4439-4442). In principle, four stereoisomers are possible when this compound is subjected to catalytic hydrogenation. Draw these stereoisomers and describe their relationships. HO O OH H₂ - ? Pt Modify the four structures below, as necessary, to draw the four stereoisomers that are possible from catalytic hydrogenation of compound 1. Use the single bond tool to interconvert between double and single bonds.arrow_forward
- Predict the product(s) and show the complete electron-pushing mecha- nism for each of the following dissolving metal reductions. (a) H3CC=CCH₂CH3 (b) (c) CECH 1844 Li NH3 ND3 C=C—CH3 NH3arrow_forward4) Aromatic compounds are among the most abundant and versatile in nature. From a synthetic point of view, these compounds, despite their stabilities, are quite useful and can undergo reactions under special conditions and by specific mechanisms, such as the Electrophilic Aromatic Substitution (SAE) and the Nucleophilic Aromatic Substitution (SNAr). Based on this, please answer the following items: (a) What are the possible isomeric products for the following reaction? Which structure, A or B, do you expect to predominate? Justify your choice. Write down the detailed mechanism of formation of compounds A and B. What would be the bromination product of each (compounds C and D)?arrow_forwarda) Draw the mechanism of this reaction showing the formation of all possible products all while taking into account the stereochemistry. b) Indicate which product will be predominantly formed and explain your answer through the electronic effects.arrow_forward
- 2. (a) Give the product of the following reaction: Br t-BUOK (b) Using the FMOS of the reacting partners explain why this reaction is expected to occur simply on heating, in the absence of light. (c) Specify the preferred stereoisomer and explain why it is preferred.arrow_forwardComplete the following reactions, clearly indicating regio-and stereochemistry where applicable. In cases, where ortho-and para-products are formed, draw both.arrow_forwardChemistry 3. Complete the following reaction scheme. Give all product(s) and indicate major or minor and any relevant stereochemistry. (а) NaOEt heat (b) heat (c) Br NaCN DMF (d) (e) OH H,SO,/H,PO, heat (f) HBr (g) 1) BH. THE 2) H,0, OH (h) 1) Hg(OAC), H-0 2) NaBH, (i) KMNO, NaOH Coldarrow_forward