This dirhodium catalyst developed by the Davies lab can form C-C bonds at the most accessible tertiary C-H position with control of both regioselectivity and absolute configuration.
Rhodium(II)-catalyzed reactions between isopropyl acetate and trichloroethyl aryldiazoacetates result in the formation of oxirane intermediates that ring open under the reaction conditions to form tertiary alcohols. When the reaction is catalyzed by the dirhodium tetrakis(triarylcyclopropanecarboxylate) complex, Rh2( S-2-Cl,4-BrTPCP)4, the tertiary
The rhodium-catalyzed reaction of electron-deficient alkenes with substituted aryldiazoacetates and vinyldiazoacetates results in highly stereoselective cyclopropanations. With adamantylglycine derived catalyst Rh2(S-TCPTAD)4, high asymmetric induction (up to 98% ee) can be obtained with a range of substrates. Computational studies suggest that
Journal of the American Chemical Society, 137(2), 644-647 (2015-01-07)
Syntheses of dictyodendrins A and F have been achieved using a sequential C-H functionalization strategy. The N-alkylpyrrole core is fully functionalized by means of a rhodium(I)-catalyzed C-H arylation at the C3-position, a rhodium(II)-catalyzed double C-H insertion at the C2- and
Chemical communications (Cambridge, England), (41), 6264-6266 (2009-10-15)
A versatile, highly enantiocontrolled entry to the spiro-beta-lactam core of chartellines has been developed by expanding the scope of oxidative nitrogen atom transfer methodology based on chiral Rh-nitrenoid species.
Une boîte à outils de la réaction organique fournit des relations structure-activité permettant des réactions chimiques uniques afin de concevoir et de contrôler de façon optimale la synthèse de petites molécules.
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