R. Tuloup, R. Danion-Bougot, D. Danion
1988
Citations
0
Influential Citations
3
Citations
Journal
Tetrahedron Letters
Abstract
Abstract Benzeneseleninic anhydride allows oxidative ring opening of 2-pyrazolines to α,β-unsaturated carbonyl compounds. Thus, a pyrazoline ring may be used as a masking, a stereodirecting and a latent formyl group in the synthesis of 7-amino 4-formyl cephem from 1,3-6H-thiazine.