H1 NMR Question

Hey. I have the following structure:


There are 4 protons in the ring structure, but I'm getting confused as to whether they'd be in the same environment, or two different environments.

Also I'm not sure if they'd be doublets or quartets?

Any help is appreciated!

or dd with a tiny $^5 \text{J}$ coupling constant from the proton para), as there is no coupling between protons in the same environment bu there will be coupling between neighbouring protons.

Could you please explain this part?


This is what I was referring to as a quartet but I haven't really done much on J-coupling so I'm not sure 100% how it works and what it'd look like in an NMR spectra?

You can get coupling across the aromatic system, but the farther you get from the proton you're measuring, the closer together the split peaks will be. In these cases you usually get something that looks like a doublet but the very peak of the doublet is split in two.

You only ever get a quartet when a proton couples to three protons each in unique environments.