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3

The preferred IUPAC name is, indeed, (chloromethyl)benzene, built from substitutive prefix chloromethyl. The parentheses around "chloromethyl" are required because it is a compound substituent (a simple substituent attached to another simple substituent, specifically, methyl and chloro in this case). The Blue Book [1, p. 66] has plenty of examples similar to ...


4

I believe the prime in the name, 1,2'-bis(4-aminophenoxy)benzene, is a typo as you originally suspected. However, the compound in your picture you thought is the correct one is neither 1,2-bis(4-aminophenoxy)benzene. The compound in the picture is 1,4-bis(4-aminophenoxy)benzene (CAS#: 3491-12-1). Nonetheless, 1,2-bis(4-aminophenoxy)benzene exists (CAS#: ...


7

This is a typo. The prime 2' would refer to position 2 in a separate ring, but you are only numbering the central ring. Note that you have drawn the structure of 1,4-bis(4-aminophenoxy)benzene. You can test the names of chemicals and their structures using a tool such as OPSIN.


2

"Oxo" refers to a substitution of a single oxygen atom on a carbon atom by a double bond. "Formyl" refers to the substitution of a three atom HCO group onto a different carbon or other atom. I'll leave it to others to explain the differences in IUPAC nomenclature. So for example 3-oxopentanal has five carbons and eight hydrogens just like pentanal, but it ...


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