Chun-Lin Zhang, Dong-Ling Wang, Kun-Quan Chen and Song Ye
Org. Biomol. Chem., 2015,13, 11255-11262
DOI:
10.1039/C5OB01748C,
Paper
The N-heterocyclic carbene-catalyzed [3 + 3] cyclocondensation of bromoenals and hydrazones is developed to give the corresponding chiral 4,5-dihydropyridazones in good yields with excellent enantioselectivities.