Tuesday, May 29, 2012

Enantioselective Synthesis of Dihydropyrazoles by Formal [4+1] Cycloaddition of in Situ-Derived Azoalkenes and Sulfur Ylides

Jia-Rong Chen, Wan-Rong Dong, Mathieu Candy, Fang-Fang Pan, Manuel J├Ârres, and Carsten Bolm
 J. Am. Chem. Soc., 2012, 134 (16), pp 6924–6927