Question

What is lowest locant rule ?

Answer 1

the principal function group is given the lowest possible locate the substitute are then assigned locate based on this numbers sheme in such a way as to given the lowest locant number at the first time there is a difference I hope this is helpful for you

Answer 2

IUPAC nomenclature: “Smallest sum of locants”? While naming any compound, the numbering should be done such that position of substituted groups gives smallest sum. I'm struggling with the IUPAC naming for cyclic compounds. How exactly does this rule work?

Hope its help you
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