Biocatalytic Aldol Addition of Simple Aliphatic Nucleophiles to Hydroxyaldehydes
Overview
Authors
Affiliations
Asymmetric aldol addition of simple aldehydes and ketones to electrophiles is a cornerstone reaction for the synthesis of unusual sugars and chiral building blocks. We investigated d-fructose-6-phosphate aldolase from (FSA) D6X variants as catalysts for the aldol additions of ethanal and nonfunctionalized linear and cyclic aliphatic ketones as nucleophiles to nonphosphorylated hydroxyaldehydes. Thus, addition of propanone, cyclobutanone, cyclopentanone, or ethanal to 3-hydroxypropanal or ()- or ()-3-hydroxybutanal catalyzed by FSA D6H and D6Q variants furnished rare deoxysugars in 8-77% isolated yields with high stereoselectivity (97:3 dr and >95% ).
Biocatalytic Transamination of Aldolase-Derived 3-Hydroxy Ketones.
Pickl M, Ebner M, Gittings S, Clapes P, Kroutil W Adv Synth Catal. 2024; 365(9):1485-1495.
PMID: 38516568 PMC: 10952931. DOI: 10.1002/adsc.202300201.
Synthesis of a precursor of D-fagomine by immobilized fructose-6-phosphate aldolase.
Masdeu G, Vazquez L, Lopez-Santin J, Caminal G, Kralj S, Makovec D PLoS One. 2021; 16(4):e0250513.
PMID: 33886681 PMC: 8062046. DOI: 10.1371/journal.pone.0250513.
Streptavidin-Hosted Organocatalytic Aldol Addition.
Santi N, Morrill L, Luk L Molecules. 2020; 25(10).
PMID: 32466220 PMC: 7287710. DOI: 10.3390/molecules25102457.
Saifuddin M, Guo C, Biewenga L, Saravanan T, Charnock S, Poelarends G ACS Catal. 2020; 10(4):2522-2527.
PMID: 32117575 PMC: 7045556. DOI: 10.1021/acscatal.0c00039.
Roldan R, Hernandez K, Joglar J, Bujons J, Parella T, Fessner W Adv Synth Catal. 2019; 361(11):2673-2687.
PMID: 31680790 PMC: 6813633. DOI: 10.1002/adsc.201801530.