Chemistry is traditionally divided into organic and inorganic chemistry. Application In Synthesis of Tris(dibenzylideneacetone)dipalladium-chloroform, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 52522-40-4
A catalytic asymmetric construction of a tetrahydroquinoline-based spirooxindole framework: Via a diastereo- and enantioselective decarboxylative [4+2] cycloaddition
A catalytic asymmetric decarboxylative [4+2] cycloaddition of vinyl benzoxazinanones with methyleneindolinones has been established, which provided a series of chiral tetrahydroquinoline-based 3,3?-spirooxindoles in high yields (up to 96%) and with excellent diastereo- and enantioselectivities (all >95:5 d.r., up to 99% ee). This reaction not only represents the first example of catalytic enantioselective [4+2] cycloaddition between methyleneindolinones and Pd-containing 1,4-dipoles, but also demonstrates the great practicability of catalytic asymmetric decarboxylative cycloadditions in the synthesis of enantio-enriched polycyclic compounds.
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Reference£º
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method