Question

1. Provide an IUPAC name for the following alkynes (1pt each). CH3 H3C CH3 CH3 CH3 H3C

Answer 1

Rules 1. Select longest carbon chain and considered as parent chain 2.The lowest possible number should be given to carbon having substituents 3.When two or more type of substituents are present in a molecule they considered as in alphabetical order 4.When two substituents are present at similar positions priority should be given on the bases of alphabetical order 5.when functional group is present the possible lowest number should be given to carbon having functional group and select longest carbon chain 6.When two or more functional groups present in a molecule the more priority group is considered as primary suffix or secondary suffix and the remaining group are considered as prefix