417710-59-9Relevant academic research and scientific papers
Rhodium-Catalyzed Asymmetric Transfer Hydrogenation/Dynamic Kinetic Resolution of 3-Benzylidene-Chromanones
Molina Betancourt, Ricardo,Phansavath, Phannarath,Ratovelomanana-Vidal, Virginie
, p. 1621 - 1625 (2021)
Straightforward access to enantiomerically enriched cis-3-benzyl-chromanols from (E)-3-benzylidene-chromanones was developed through Rh-catalyzed asymmetric transfer hydrogenation. This transformation allowed the reduction of both the CaC and CaO bonds and the formation of two stereocenters in high yields with excellent levels of diastereo- A nd enantioselectivities (up to >99:1 dr, up to >99% ee) in a single step through a dynamic kinetic resolution process using a low catalyst loading and HCO2H/DABCO as the hydrogen source.
Photoredox-Catalyzed Ketyl-Olefin Coupling for the Synthesis of Substituted Chromanols
Fava, Eleonora,Nakajima, Masaki,Nguyen, Anh L. P.,Rueping, Magnus
supporting information, p. 6959 - 6964 (2016/08/30)
A visible light photoredox-catalyzed aldehyde olefin cyclization is reported. The method represents a formal hydroacylation of alkenes and alkynes and provides chromanol derivatives in good yields. The protocol takes advantage of the double role played by trialkylamines (NR3) which act as (i) electron donors for reducing the catalyst and (ii) proton donors to activate the substrate via a proton-coupled electron transfer.
Urea derivatives useful as anticancer agents
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, (2008/06/13)
The present invention relates to compounds of formula I And to pharmaceutically acceptable salts, hydrates and prodrugs thereof, wherein R1, R2, R3, R4, R5, R10, R11, b, m, n, p and v are as defined herein. The invention also relates to pharmaceutical compositions containing the above compounds and methods of treating hyperproliferative disorders in mammals by administering the above compounds.
