On the [2+2] cycloaddition of 2-aminothiazoles and dimethyl acetylenedicarboxylate. Experimental and computational evidence of a thermal disrotatory ring opening of fused cyclobutenes

1. Alajarín, M.
2. Cabrera, J.
3. Pastor, A.
4. Sánchez-Andrada, P.
5. Bautista, D.