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Magazine Chapter 7: Q7P (page 293)
Name the following:
Short Answer
a) IUPAC name: hept-2-ene-4-ol.
b) IUPAC name: hept-2-ene-yne.
c) IUPAC name: hept-4-ene-1-yne.
Step by step solution
Rules of IUPAC nomenclature
There are some rules to be followed for the naming of a structure and these are given as follows,
1.Finding the longest chain.
2. Numbering the chain according to the priority order of double bond, triple bond and functional group.
3. functional group should be written in an alphabetical order means if there is methyl and ethyl group, put ethyl group at 1st as e comes earlier than m in Alphabets.
4. Among two or more functional group, the name of the compounds will be based on that group which has higher priority.
5.An alkene group will be named as 鈥榚ne鈥� and alkyne group will be named as 鈥榶ne鈥�.
IUPAC names of the given compounds
The systematic names are given below, using the IUPAC rules.1st we have levelled the longest chain considering the position of functional group, and then it is written in alphabetical order.
Name of the compounds
The systematic name of the compounds is given below,
IUPAC name: hept-2-ene-4-ol.IUPAC name: hept-2-ene-5-yne.
IUPAC name: hept-4-ene-1-yne.
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