Tandem Reactions of 1,2,4-Oxadiazoles with Allylamines

Vinyl-1,2,4-oxadiazoles Behave as Nucleophilic Partners in Morita-Baylis-Hillman Reactions

We describe that vinyl-oxadiazoles function as a new and efficient nucleophilic partner for the Morita-Baylis-Hillman (MBH) reaction. The reaction between 5-vinyl-3-aryl-1,2,4-oxadiazoles and aromatic and aliphatic aldehydes, catalyzed by DABCO in the absence of solvent, showed high efficiency to afford a new class of heterocyclic MBH adducts with potential biological activity on yields up to 99% and short reaction times. These synthetically attractive adducts bear a heterocyclic scaffold of large pharmaceutical and commercial interest associated with a plethora of biological effects and technological applications. We also demonstrate their synthetic usefulness by a photoinduced addition reaction to a polyfunctionalized amino alcohol.

Origins of the ANRORC reactivity in nitroimidazole derivatives

Highlighting the key role of proton transfer along the PES: unraveling the mechanism of ANRORC reactions in 1,4-dinitro-1H-imidazole derivatives.

Mechanistic insights into the ANRORC-like rearrangement between methylhydrazine and 1,2,4-oxadiazole derivatives

The first in-depth theoretical study devoted to elucidate the mechanism of the ANRORC reaction between 1,2,4-oxadiazole derivatives and methylhydrazine is described.