Concept explainers
(a)
Interpretation:
The curved arrow mechanism for the given reaction is to be predicted.
Concept introduction:
The addition of a bromine atom in the given compound is known as bromination. Bromination occurs through an electrophilic substitution reaction. Bromine atom acts as an electrophile which causes the formation of sigma bond in the reaction.
(b)
Interpretation:
The curved arrow mechanism for the given reaction is to be stated.
Concept introduction:
The consecutive aldol condensation between benzil and substituted thiodiacetate gives thiophenes as the desired product followed by nucleophilic addition reaction. This reaction is known as Hinsberg reaction.
(c)
Interpretation:
The curved arrow mechanism for the given reaction is to be stated.
Concept introduction:
The reaction of
(d)
Interpretation:
The curved arrow mechanism for the given reaction is to be stated.
Concept introduction:
The condensation reaction of aniline with diketones gives derivative of quinoline followed by ring closure of Schiff base intermediate. This reaction is known as Combes quinoline synthesis.
(e)
Interpretation:
The curved arrow mechanism for the given reaction is to be stated.
Concept introduction:
The reaction of an
(f)
Interpretation:
The curved arrow mechanism for the given reaction is to be stated.
Concept introduction:
The reaction of ortho-nitrotoulene with ethyloxalate followed by reduction with the help of
(g)
Interpretation:
The curved arrow mechanism for the given reaction is to be stated.
Concept introduction:
The reaction of ortho-iodoaniline with a substituted
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EBK ORGANIC CHEMISTRY
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- are intermediate in length as is common in aromatics, the C-B bonds are very long - they are the length of Boron heterocyclics are similar if opposite: the boron can use either a singly occupied or empty orbital as part of they are extremely strong Lewis Some interesting bora-aromatics have been made as shown below. In these compounds, while the C-Cbonds Acids, and are only known as complexes. Boron can also use an empty orbital in the pi system: borepins are the pi system: pyridine and pyrrole. The convention is that lone pairs inside the ring are part of the pi sstem, 4. Nitrogen containing heterocyclic aromatics can use either a singly occupied orbital or the lone pair as part of JAMES E. HANSON lone pairs outside are not. Work The The рyridine ругrole 1. the pi system! Boratobenzenes have a boron replacing a carbon in benzene – isoelectronic with the cycloheptatrienyl cation. a boratobenzene borepin typical single bonds. Why?arrow_forwardHeterocyclic compounds are present in naturally occurring substances and their syntheticcompounds are produced for various industrial applications. Furan is one such heterocycliccompound which is more reactive than benzene towards electrophilic aromatic substitutionreaction.1.Analyze the different substitution products formed in case of furan when it is reacted withiodine. Write the reaction mechanism involved when furan reacted with iodine andevaluate the formation of products.arrow_forward(A) Provide the major organic product for the reaction below (B) Would the product be optically active of optically in active?arrow_forward
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