Ion pairing and reactivity of enolate anions. 6. Kinetics and thermodynamics for reaction of alkali acetylacetonates with alkyl halides in dimethyl sulfoxide
Energetic Organic Peroxides - Synthesis and Characterization of 1,4-Dimethyl-2,3,5,6-tetraoxabicyclo[2.2.1]heptanes
作者:Thomas M. Klapötke、Benedikt Stiasny、Jörg Stierstorfer、Charles H. Winter
DOI:10.1002/ejoc.201500919
日期:2015.10
1,4-Dimethyl-2,3,5,6-tetraoxabicyclo[2.2.1]heptane and several similar alkyl-derivatives were synthesized applying two different strategies. Crystal structures of the compounds were determined and their energetic properties including sensitivities towards impact, friction and electrostatic discharge as well as their thermal behaviour were determined and compared to tricacetone triperoxide (TATP). The
A Two-Step, One-Pot Enzymatic Synthesis of 2-Substituted 1,3-Diols
作者:Dimitris Kalaitzakis、Ioulia Smonou
DOI:10.1021/jo101519t
日期:2010.12.17
A biocatalytic cascade reaction was designed for the stereoselective synthesis of optically pure 2-alkyl-1,3-diols employing two enzymes. The cascade process consists of two consecutive steps: a stereoselective diketone reduction and a hydroxy ketone reduction. Chiral diols were formed by the addition of ketoreductases in the same vessel, in high stereoselectivity and chemical yield, without the isolation of the intermediate beta-hydroxy ketones.
The invention relates to the use of polycarboxylate ethers for dispersing disperse dyes and UV absorbers. The invention also relates to a preparation containing a disperse dye and/or a UV absorber, further comprising a polycarboxylate ether as a dispersant.