Concept explainers
(a)
Interpretation: The reagent needed for the conversion of
Concept introduction: The reaction of hydrogen halide with
(b)
Interpretation: The reagent needed for the conversion of
Concept introduction: The reaction of hydrogen halide with alkene results in the formation of alkyl halide. This type of reaction is an electrophilic addition of hydrogen halide. Electrophilic addition reactions are those in which breaking of pi bond take place to form new sigma bond.
(c)
Interpretation: The reagent needed for the conversion of
Concept introduction: Electrophilic addition reactions are those in which breaking of pi bond take place to form new sigma bond.
The addition of Halogens to alkenes is a stereospecific reaction. The resultant product is meso compound, if alkene is cis and addition of halogen is syn addition. If addition of halogen is anti, then the resultant products are racemic mixture. In case of trans alkene, the resultant product is meso, if addition of halogen is anti. The resultant products are racemic mixture, if the addition of halogen is syn.
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Chapter 15 Solutions
Organic Chemistry
- 2-methyl-1-butene reaction with HBrarrow_forwardthe action of halogenated derivatives of alkanes with KOH: CnH2n + 1 Cl + KOH = CnH2n + 2O + KCl is: a) radical substitution b) nucleophilic substitution c) electrophilic substitution d) addition reactionarrow_forwardHow to assign E & Z configurations and name tetra-substituted alkenes? And How do you determine tetra-substituted, mono-substituted, di-substituted?arrow_forward
- Draw the structures of the following molecules: (a) trans-l-Bromo-3-methylcyclohexane (b) cis-1, 2-Dimethylcyclobutane (c) trans-1 -tert-Butyl-2-ethylcyclohexanearrow_forwardDraw structures of compounds that fit the following descriptions: a) An , unsaturated ketone, C9H8O b) An diketone c) An aromatic ketone, C9H10O d) A diene aldehyde, C7H8Oarrow_forwardThe addition reaction of an acid (HBr) to an alkene (CH3CH=CH2) follows Markovnikov's rule and involves: A) initial attack by Br– B) initial attack by Br• C) isomerization of CH3CH2CH2Br D) formation of a primary carbocation. E) formation of a secondary carbonation. (F) Formation of allyl carbocationarrow_forward
- How many products of 2-hexene+Cl2 are therearrow_forwardHow could 2,6-dimethylheptane be prepared from an alkyne and an alkyl halide? (The prime in R′ signifies that R and R′ can be different alkyl groups.)arrow_forwardHow could 2,6-dimethylheptane be prepared from an alkyne and an alkyl halide?arrow_forward
- What are the major and minor products formed when cyclohexene reacts with Br2 in the solvent CH2Cl2?arrow_forwardThe heat of combustion of decahydronaphthalene (C10H18) is -6286 kJ/mol. The heat of combustion of naphthalene 1C10H82 is -5157 kJ/mol. (In both cases CO2(g) and H2O(l) are the products). Calculate the heat of hydrogenation and the resonance energy of naphthalene.arrow_forwardExplain addition of H2O to an alkyne ?arrow_forward
