These direct, Fe-catalysed transformations are highly modular, and provide water, as the only stoichiometric byproduct.
However, wide-scope enantioselective gold-catalysed transformations are still relatively scarce.
It is now clear that this was a misconception, and a multitude of gold-catalysed transformations has been reported.
2 In addition, 1 has also emerged as the foundation of a privileged class of starting materials, being used to obtain systematically fine-tuned derivatives such as tetraaryl-2,2-dimethyl-1,3-dioxolan-4,5-dimethanols 2 (TADDOLs) and analogous compounds, which have found numerous and widespread applications as chiral ligands in asymmetric metal-catalysed transformations.
Dissimilatory microbial reduction and Fe2 +-catalysed transformation likely played a major role in accelerating the transformation of both minerals to goethite in sediments.
The combination of photochemical isomerization between trans and cis-isomers and the thermal helix inversion of (M,M -cis to (P,P)-cis-isoM,M -cisbles a single chiral ligand to control the formation of nearly racemic, and each enantiomer of the P,P -cis-isomersresentative P,P -cis-isomersnsformation.
The GGT1-catalysed transformation of SG-3M3SH to Cys-Gly-3M3SH was performed as described above, with the donor substrate being substituted with 1 m m SG-3M3SH.
Reaction media that consist of organic solvents can greatly expand the lipase-catalysed transformation repertoire, where numerous reactions might be used by synthetic and polymer chemists with high selectivity [ 34].
Chemists should think how to maximize the utilization of bulk chemical feedstocks, including fossil resources and biomass, to enhance efficiency and selectivity during catalysed chemical transformations, and to promote the diversity of final products.
