Concept explainers
Interpretation:
The synthesis of the given compounds, starting from
Concept introduction:
Electrophiles are electron-deficient species, which has positive or partially positive charge. Lewis acids are electrophiles, which accept electron pair.
Nucleophiles are electron-rich species, which has negative or partially negative charge. Lewis bases are nucleophiles, which donate electron pair.
Substitution reaction: A reaction in which one of the hydrogen atoms of a hydrocarbon or a functional group is substituted by any other functional group is called substitution reaction.
Nucleophilic substitution reaction is a reaction in which an electron rich nucleophile attacks the positive or partial positive charge of an atom or a group of atoms to replace a leaving group.
Nucleophilic substitution is a reaction in which an electron-rich group, called a nucleophile, substitutes an outgoing group on a saturated carbon atom.
The
The
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
A racemic mixture or racemic form is an equimolar mixture of two enantiomers. The racemic form causes no net rotation of plane-polarised light.
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Organic Chemistry, 12e Study Guide/Student Solutions Manual
- Draw a structural formula for the alcohol formed by treating each alkene with borane in tetrahydrofuran (THF) followed by hydrogen peroxide in aqueous sodium hydroxide, and specify stereochemistry where appropriate. (a) (d) (b) (e) (c)arrow_forwardPRACTICE PROBLEM 6.5 Using chair conformational structures (SectionA), show the nueleophilie substitution reaction that would take place when trans-1-bromo-4-tert-butyleyclohexane reacts with lodide lon. (Show the most stable conformnation of the reactant and the product.) Sy2 reactions always occur with inversion of configurationarrow_forward(a) H. H. 6.44 Which of the following reactions will yield a racemic mixture of products? HCI HBr (a) (c) H2 H2 (b) (d) Pt Ptarrow_forward
- 11:43 Q1. (a) (c) (d) (b) Two stereoisomers of but-2-ene are formed when 2-bromobutane reacts with ethanolic potassium hydroxide. (i) Explain what is meant by the term stereoisomers. Library Name and outline a mechanism for the reaction of 2-bromo-2-methylpropane with ethanolic potassium hydroxide to form the alkene 2-methylpropene, (CH3)2C=CH₂ Name of mechanism Mechanism (ii) Draw the structures and give the names of the two stereoisomers of but-2-ene. Stereoisomer 1 Name (iii) Name this type of stereoisomerism. Select Name Stereoisomer 2 When 2-bromo-2-methylpropane reacts with aqueous potassium hydroxide, 2-methylpropan-2-ol is formed as shown by the following equation. CH3 H₂C-C-CH3 + KOH Br Page 2 of 14 CH3 H3C-C-CH3 + KBr ОН State the role of the hydroxide ions in this reaction. Write an equation for the reaction that occurs when CH3CH₂CH₂CH₂Br reacts with an excess of ammonia. Name the organic product of this reaction. Equation Name of product 9,284 Photos, 1,166 Videos For You…arrow_forwardO PRACTICE PROBLEM 8.14 Starting with any needed alkene (or cycloalkene) and assuming you have deuterioace- tic acid (CH3CO,D) available, outline syntheses of the following deuterium-labeled compounds.s el en olad lo nohibbs ad CH3 (a) (CH3)2CHCH2CH,D (b) (CH3),CHCHDCH3 (c) (+ enantiomer) (d) Assuming you also have available BD3:THF and CH3CO2T, can you suggest a synthesis of the following? hab erl (+ enantiomer)he imo (nwond-ben) CH3 H. (asoholea)arrow_forwardDescribe the characteristic infrared absorption frequencies that would allow you to distinguish between the following pairs of compounds. (a) cyclohex-2-enone and cyclohex-3-enone (b) cyclohexanol and cyclohexanonearrow_forward
- (a) Indicate the following alkenes in order of increasing stability. Justify your answers.arrow_forward5.34 Select the compound in each of the following pairs that will be converted to the corresponding alkyl bromide more rapidly on being treated with hydrogen bromide. Explain the reason for your choice. (a) 1-Butanol or 2-butanol (b) 2-Methyl-1-butanol or 2-butanol (c) 2-Methyl-2-butanol or 2-butanol (d) 2-Methylbutane or 2-butanol dovolonentanol or cyclohexanolarrow_forwardGive IUPAC names for the following structures. (If appropriate, specify relative stereochemistry.) (a) (b) S Sarrow_forward
- I want only answers for (d)~(f)arrow_forward• PRACTICE PROBLEM 8.18 Starting with cyclohexene and using any other needed reagents, outline a synthesis of 7,7-dibromobicyclo[4.1.0]heptane.arrow_forwardExplain why :(a) The dipole moment of chlorobenzene is lower than that of cyclohexyl chloride.(b) Alkyl halides, though polar, are immiscible with water.arrow_forward
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