Saturday, August 26, 2017

organic chemistry - If you introduce a 3rd group into O- chlorotoluene, which position will the 3rd group prefer?




I read that Cl is ring deactivating group even if it is O,P- directing. Which group among the methyl and chloro controls the orientation of the 3rd substituent. What are the products formed?




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periodic trends - Comparing radii in lithium, beryllium, magnesium, aluminium and sodium ions

Apparently the of last four, $\ce{Mg^2+}$ is closest in radius to $\ce{Li+}$. Is this true, and if so, why would a whole larger shell ($\ce{...