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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Helly on February 18, 2020, 01:23:23 PM

Title: When benzene consists of CH3 and COOH why we named it tolualdehyde?
Post by: Helly on February 18, 2020, 01:23:23 PM
When benzene consists of CH3 and COOH why we named it tolualdehyde (making of terepthalic acid)?The aldehyde supposed to be more priority than R alkyl, so the name is methyl benzaldehyde
Title: Re: When benzene consists of CH3 and COOH why we named it tolualdehyde?
Post by: chenbeier on February 18, 2020, 01:52:41 PM
-COOH is not aldehyde. It is a carbonic acid. Aldehyde is -CHO.
It would be  p- Methyl benzoeic acid or p-Toluencarbonic acid.

Title: Re: When benzene consists of CH3 and COOH why we named it tolualdehyde?
Post by: AWK on February 18, 2020, 02:03:22 PM
4-Methylbenzaldehyde is an IUPAC name. Other names are commonly used synonyms.
Title: Re: When benzene consists of CH3 and COOH why we named it tolualdehyde?
Post by: MNIO on February 18, 2020, 06:24:25 PM
which of these do you have trouble with?
(https://i.postimg.cc/kXKLs5RG/methy-benzoic-benzalde.png) (https://postimg.cc/xcjsTnRV)