Chuanling Cheng, Jian Sun, Chao Wang, Yu Zhang, Siyu Wei, Fan Jiang and Yundong Wu
Chem. Commun., 2006, 215-217
DOI:
10.1039/B511992H,
Communication
Protonated N′-benzyl-N′-L-prolyl-L-proline hydrazide has been developed as a highly enantioselective catalyst for the asymmetric direct aldol reaction of aromatic aldehydes with ketones.