Answers are grounded in this paper and cite their sources.
Two birds with one stone: In the presence of Zn(OH)2 and a chiral bipyridine ligand, racemic α-substituted allylboronates 2 reacted with aldehydes 1 (see scheme) exclusively in an α-addition fashion to afford various homoallylic alcohols 3 bearing two neighboring stereogenic centers in high yields with high diastereo- and enantioselectivities.
No takes yet. Share an insight, caveat, or question.
Kobayashi et al. (2011) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: