Answers are grounded in this paper and cite their sources.
The periselective Diels-Alder reaction of 5-substituted pentamethylcyclopentadienes and nitroethylene has been realized by helical-chiral hydrogen bond donor catalysts. To our knowledge, this represents the first asymmetric catalytic nitroalkene Diels-Alder reaction via activation of nitroalkene, and thus establishes its proof-of-principle.
No takes yet. Share an insight, caveat, or question.
Narcis et al. (2012) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: