Synthesis, Characterization, Crystal Structure and Fluorescence Property of Tetramethyl 5,5′-(Terephthaloylbis(azanediyl))-Diisophthalate

Skeletal Rearrangement in the Ritter Reaction of Turpentine: A Novel Synthesis of P-menthane Diamides

“…7,8 Many highly valuable pharmaceutical intermediates and heterocycles can be prepared conveniently from nitriles, alcohols, alkenes and tertiary halides by this procedure. [7][8][9] Over the last few decades, significant progress with catalysed Ritter reactions has been achieved. 10,11 In this reaction, an acidcatalysed nucleophilic addition of a nitrile to a carbenium ion, followed by hydrolysis generates an amide.…”

“…Molecular rearrangements may occur if the intermediate carbonium ions isomerise to more stable structures. [7][8][9][10][11][12] However, to the best of our knowledge, there are few reports concerning the synthesis of amides via Ritter reactions. 7,11 In continuation of our previous work on p-menthane derivatives synthesised from turpentine via a cationic resincatalysed hydration reaction, 13 we envisioned a novel skeletal rearrangement Ritter reaction.…”