57576-09-7Relevant articles and documents
PREPARATION OF ACETATE COMPOUNDS VIA A KETENE COMPOUND
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Page/Page column 20, (2019/07/13)
The present invention relates to a method for preparing acetate compounds using ketene.
Enantioselective monoterpene alcohol acetylation in Origanum, Mentha and Salvia species
Larkov, Olga,Zaks, Alon,Bar, Einat,Lewinsohn, Efraim,Dudai, Nativ,Mayer, Alfred M.,Ravid, Uzi
experimental part, p. 2565 - 2571 (2009/04/06)
Selected plants within the Origanum, Mentha and Salvia genera, that contain significant amounts of chiral volatile alcohols and their related acetates, exhibit remarkable enantioselectivity of alcohol acetyl transferase (AAT) activity and particularly can discriminate between linalool enantiomers. Origanum dayi AAT produced almost enantiomerically pure (R)-linalyl acetate by enzymatic acetylation of racemic linalool, whereas the closely related O. majorana AAT produced a mixture of (R)- and (S)-linalyl acetate with a ratio of 6:4. Vmax of O. dayi acetylation activity was 30-fold higher for (R)-linalool, whereas in O. majorana no such differences were found.
Chiral hydride complexes
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, (2008/06/13)
Novel chiral boron and aluminum hydride complexes, compositions comprising the chiral hydride complexes, and methods for their synthesis and use are described. The novel chiral hydride complexes are of the formulas: PA1 MBH4-n-a (R*)n (R')a ; PA1 MBH2-b (R**) (R')b ; PA1 MBH(R***); PA1 MBH(R*) (R"); PA1 MAlH4-n-a (R*)n (R')a ; PA1 MAlH2-b (R**)(R')b ; PA1 MAlH(R***); and PA1 MAlH(R*) (R"), PAL wherein PA1 M is Na+, Li+ or K+ ; PA1 each R* is independently a monodentate chiral ligand; PA1 R** is a bidentate chiral ligand; PA1 R*** is a tridentate chiral ligand; PA1 R' is a monodentate achiral ligand; PA1 R" is a bidentate achiral ligand; PA1 n is 1-3; PA1 a is 0-2; and PA1 b is 0-1, PAL with the proviso that n+a3, and with the further proviso that when R** is S-BINOL, M is not Li+.