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Seat No.: Enrolment No.
GUJARAT TECHNOLOGICAL UNIVERSITY
B.PHARM. Sem IV- • EXAMINATION WINTER-2016
Subject Code: 2240004 Date: 24/10/2016
Subject Name: Pharmaceutical Chemistry-VI (Organic Chemistry-II)
Time: 10.30am-1.30pm Total Marks: 80
Instructions:
1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 Discuss about twelve principles of green chemistry. 06
Discuss on the following synthesis: Pictet-Spenglar synthesis Conrad-
Limpach synthesis
05
Write the structure of the following compounds: Pyrazole Pyridazine
Isoquinoline Pyrimidine Imidazole
05
Q.2 Write details on: Skraup synthesis Paal Knorr synthesis 06
Discuss the importance on microwave synthesis. 05
Write the IUPAC name of the compounds:

N
N
O
OH

NH
NH2

N
NO2

N
S
H3C
N
O
Cl
05
Q.3 Differentiate between Enantiomers and Diastereomers with proper examples. 06
How will you differentiate between aliphatic and aromatic amines. Give
details on azo dye test Hinsberg test.
05
Explain the following: Bischler-Naperialsky synthesis Madelung
synthesis.
05
Q.4 Differentiate between optical isomerism geometrical isomerism with proper
examples.
06
Which heterocyclic rings are produced with reaction:
Acetylene is reacted with ammonia acetylene is reacted with
diazomethane?
05
Define racemic mixture and its resolution methods. 05
Q.5 Give various methods for preparation of phenols. 06
Write the conversion of the following compounds:
Phenol to salicylaldoxime Nitrobenzene to phenol
05
Write a short note on nanochemistry.
05
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Q. 6 Name only the names of heterocyclic rings produced from the name reactions:
Fischer synthesis Hantzsch synthesis Conrad-Limpach synthesis
Pictet-Spengler synthesis Pfitzinger synthesis Reissert synthesis
06
Discuss the importance of ionic liquid and atom economy in green chemistry
synthesis.
05
Define chiral compounds and discuss about the isomerism generated from this.
R
OH
O
OH
H
Locate the chiral point in the structure and write the name of
compound when R=CH3 and R=C6H5
05
Q.7 Focus on Stereochemistry of Allene, Spiran and Biphenyl. 06
Differentiate between Relative configuration and Absolute configuration. 05
Write the names of the following compounds:
Aromatic aldehyde Aliphatic aldehyde Aromatic ketone Aliphatic
ketone Aromatic carboxylic acid Aliphatic carboxylic acid Aromatic
amine Aliphatic amine Aromatic enol Aliphatic enol.
05