Modular Synthesis of Dihydroxyacetone Monoalkyl Ethers and Isosteric 1-Hydroxy-2-alkanones
作者:Deniz Güclü、Madhura Rale、Wolf-Dieter Fessner
DOI:10.1002/ejoc.201403695
日期:2015.5
systematic preparation of libraries of the title compound classes have been evaluated. A general and efficient modular route to dihydroxyacetone monoethers was developed based on trityl glycidol, which, through epoxide opening, oxidation, and deprotection, provided variously alkylated ethers by three routine operations in good overall yields (eight examples, 24–59 %). The preparation of structurally
The present invention relates to the use of dihydroxyacetone monoethers as self-tanning substance, to preparations comprising dihydroxyacetone monoethers, and to certain dihydroxyacetone monoethers and to a process for the preparation thereof.
double-space-generating mutations using simple conservative Leu to Ala replacement of active site residues, we found enzyme variants to efficiently convert larger ketols and bioisosteric ether components with up to seven skeletal atoms, including linear and branched-chain structures. All reactions occurred with full retention of the natural d-threo diastereospecificity. These FSA variants open new avenues
Synthesis and Ruthenium-Catalyzed Enantioselective Hydrogenation of 3-O-Substituted 1,3-Dihydroxypropan-2-ones. Part 2
作者:Edoardo Cesarotti、Patrizia Antognazza、Marco Pallavicini、Luigi Villa
DOI:10.1002/hlca.19930760620
日期:1993.9.22
A number of 3-O-substituted 1,3-dihydroxypropan-2-ones have been synthesized in view of their potential use as prochiral precursors of optically active glycerols. Indeed, the oxo-ethers have been reduced to the corresponding 3-O-substituted glycerols via chiral Ru complexes derived from (S)-binap, ( =(−)-(S)-2,2′-bis(diphenylphosphino)-1,1′-binaphthalene) with enantiomeric excesses up to 93%. The steric