Synthesis of common heterocyclic compounds

 Synthesis and reactivity of common heterocyclic compounds: containing one or two heteroatoms (O, N, S).

YEAR JUN-2016 DEC-2015 JUN-2015 DEC-2014 JUN-2014 DEC-2013 JUN-2013 DEC-2012 JUN-2012 DEC-2011 JUN-2011
No.of questions appeared 3   – 4 1 1 4 1 1 1 1 1

1.The major product formed in the following reaction is

heterocyclic-csir-net-gtae-chemical-science-june 2016

 

2.The major product formed in the following reaction is

heterocyclic-csir-net-gtae-chemical-science-june 2016

 

3.The major product formed in the following reaction is

heterocyclic csir-net-gtae-chemical-science june-2016

 

4.The major product of the following reaction is

heterocyclic-csir-net-gtae-chemical science dec-2015

 

5.The major product formed in the reaction of 2, 5-hexanedione with P2Ois

heterocyclic-csir-net-gtae-chemical-science june 2014

 

6.The major product formed in the following reaction is

heterocyclic-csir-net-gtae-chemical-science dec 2013

heterocyclic-csir-net-gtae-chemical science-dec-2013

 

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