sgreen

Thanks for quick reply. Now I get the clear understanding.

Thanks a lot. I have unterstood 3-formylpentanoic acid. But why 3-(oxomethyl)-pentanoic acid? If you give the answer in more detail, it will be better for me.

CH3-CH2-CH(CHO)-CH2-COOH.... exactly 3-formylpentanoic acid or 2-formylpentanoic acid. And how it can be 2-(oxomethyl)-pentanoic acid? Would you please elaborate? IF YOU HAVE TIME..PLEASE

In case of Aldehyde, what is prefix except formyl- replacing in 3-alpentanoic acid?

Thanks Thanks .Is it possible 3-ethyle-4-oxobutanoic acid or 3-alpentanoic acid? Please, please ensure .

I am confused with IUPAC naming with more functional group -CHO, -COOH. What is the IUPAC naming of the following compound? CH3-CH2-CH(CHO)-CH2-COOH . I think it's 3-alpentanoic acid. Please help me to choose the right one.