7170-50-5Relevant articles and documents
Facile access to chiral 4-substituted chromanes through Rh-catalyzed asymmetric hydrogenation
Tao, Lin,Zhao, Qingyang,Zhang, Xumu,Dong, Xiu-Qin
supporting information, p. 1859 - 1862 (2020/01/21)
Rh/ZhaoPhos-catalyzed asymmetric hydrogenation of a series of (E)-2-(chroman-4-ylidene)acetates was successfully developed to prepare various chiral 4-substituted chromanes with high yields and excellent enantioselectivities (up to 99percent yield, 98percent ee). Moreover, the gram-scale hydrogenation could be performed well in the presence of 0.02 molpercent catalyst loading (TON = 5000), the hydrogenation product was easily converted to access other important compounds, which demonstrated the synthetic utility of this asymmetric catalytic methodology.
NOVEL ARYL UREA DERIVATIVE
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Page/Page column 58, (2012/11/13)
There is a need for FAAH inhibitors capable of oral administration and having excellent efficacy, particularly agents for the prevention and treatment of pain. Disclosed are novel arylurea compounds represented by formula (I), salts or solvates thereof, and pharmaceutical compositions comprising the same as an active ingredient. The pharmaceutical composition is used primarily for FAAH inhibitors, or agents for prevention and treatment of pain.
Chemoenzymatic synthesis and resolution of compounds containing a quaternary stereocenters adjacent to a carbonyl group
Mahapatra, Tridib,Jana, Nandan,Nanda
, p. 1224 - 1232 (2008/09/21)
Racemic compounds containing a quaternary stereocenter (having hydroxymethyl and alkyl group adjacent to keto functionality) based on chromanone, α-tetralone, and indalone scaffolds have been synthesized. An enzymatic irreversible transesterification approach has been applied to generate the pure enantiomers in a stereocontrolled fashion. The pure enantiomers of some α,α-dialkylated carbonyl compounds have been synthesized by this method.