I need the diagram of "cyclobutanal" [closed]








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I doubted whether I can say cyclobutanal or not. Im confused and didn't found my answer anywhere




Let's have correct names for related alcohols butanol (e.g. **butan-1-ol**) and **cyclobutanol**. Here the -ol suffix means $\ce{-OH}$ group *attached* to the carbon atom.


In **butanal** ($\ce{CH3CH2CH2CHO}$), suffix **-al** means not just $\ce{=O}$ group (oxo group), but entire $\ce{-CHO}$ which already contains carbon, which is *included* in the counting and numbering. (No locant is needed, because the aldehyde group can be only at the terminal carbon, 1.) If you want to name C-1 to C-4 cyclized butanal, its correct name is **cyclobutanone**.


Now, it's impossible for cyclic compound to contain aldehyde group in the cycle. For $\ce{-CHO}$ group *attached* (not included) to the parent cycle, suffix **-carbaldehyde** is used, therefore names ***“cyclobutanal”*** or ***“cyclobutan-1-al”*** are wrong, correct is **cyclobutanecarbaldehyde**.


[![Fig.1](https://i.stack.imgur.com/ZaPJW.png)](https://i.stack.imgur.com/ZaPJW.png)


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It's cyclobutanecarboxaldehyde (or cyclobutanecarbaldehyde). I found for you nice little picture of this guy. 


[![enter image description here](https://i.stack.imgur.com/mxpH0.png)](https://i.stack.imgur.com/mxpH0.png)


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