1247713-61-6Relevant academic research and scientific papers
A benzo b furyl ketone dye synthesis method (by machine translation)
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Paragraph 0024; 0042; 0046, (2018/09/11)
The invention relates to a of benzodifaradone dye synthesis method, first to the manufacture of chlorine list alkyl esters, aromatic hydrocarbon as the raw material for Friedel-crafts reaction intermediates 1 or 1 ', then the intermediate 1, intermediate 1' hydrogenation reduction for preparing intermediate 2 and intermediate 2 ', intermediate 2 with condensation product of [...] intermediate 3 with the intermediate 2' condensation reaction to produce intermediate 4, intermediate 4 is oxidized to obtain the benzo b butenolides. The present invention provides a process for synthesis of low cost, low risk, low pollution, the process route is simple without a separate purification process; production and cheap, the cost is far lower than the existing technology, and the product higher total yield can be up to 69%, content is greater than 98.5%, has extremely high economic efficiency, and is suitable for large-scale production, it has good industrial application prospect. (by machine translation)
Kinetic resolution of mandelate esters via stereoselective acylation catalyzed by lipase PS-30
Chen, Peiran,Yang, Wenhong
supporting information, p. 2290 - 2294 (2014/04/17)
By using lipase PS-30 as catalyst, the kinetic resolution of a series of racemic mandelate esters has been achieved via stereoselective acylation. The value of kinetic enantiomeric ratio (E) reached up to 197.5. Substituent effect is briefly discussed.
