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New boro amino amide organocatalysts for asymmetric cross aldol reaction of ketones with carbonyl compounds†
Zubeda Begum,Chigusa Seki,Yuko Okuyama,Eunsang Kwon,Koji Uwai,Michio Tokiwa,Suguru Tokiwa,Mitsuhiro Takeshita,Hiroto Nakano
RSC Advances Pub Date : 01/04/2023 00:00:00 , DOI:10.1039/D2RA06272K
Abstract

Distinct types of new boron fused primary amino amide organocatalysts were designed and synthesized from commercially available amino acids. Their catalytic activities were investigated in asymmetric crossed aldol reaction of ketones with aromatic aldehydes to afford the corresponding chiral anti-aldol adducts with good chemical yields, moderate diastereoselectivity and good to excellent enantioselectivities (up to 94% yields, up to 90 : 10 dr, up to 94% ee).

Graphical abstract: New boro amino amide organocatalysts for asymmetric cross aldol reaction of ketones with carbonyl compounds
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