20621-70-9Relevant articles and documents
C(sp3)-H functionalizations of light hydrocarbons using decatungstate photocatalysis in flow
Deng, Yuchao,Fagnoni, Maurizio,Guthrie, Duncan,Laudadio, Gabriele,No?l, Timothy,Nun?, Manuel,Ravelli, Davide,Sun, Yuhan,Wal, Klaas Van Der
, p. 92 - 96 (2020/09/03)
Direct activation of gaseous hydrocarbons remains a major challenge for the chemistry community. Because of the intrinsic inertness of these compounds, harsh reaction conditions are typically required to enable C(sp3)-H bond cleavage, barring potential applications in synthetic organic chemistry. Here, we report a general and mild strategy to activate C(sp3)-H bonds in methane, ethane, propane, and isobutane through hydrogen atom transfer using inexpensive decatungstate as photocatalyst at room temperature. The corresponding carbon-centered radicals can be effectively trapped by a variety of Michael acceptors, leading to the corresponding hydroalkylated adducts in good isolated yields and high selectivity (38 examples).
Concave reagents, 30. Diastereoselective generation of quaternary stereocenters by ligand-controlled palladium-catalyzed allylations
Meynhardt,Lüning,Wolff,N?ther
, p. 2327 - 2335 (2007/10/03)
The 1,2-asymmetric induction in the formation of new quaternary centers by palladium-catalyzed allylation of substituted cyanoacetates 1a-c was controlled by using 2,9-disubstituted 1,10-phenanthrolines as ligands, giving the allylated products 3a-c with
