445433-08-9Relevant articles and documents
Highly selective hydroformylation of the Cinchona alkaloids
Lambers, Marielle,Beijer, Felix H.,Padron, Jose M.,Toth, Imre,de Vries, Johannes G.
, p. 5022 - 5024 (2002)
The four naturally occurring cinchona alkaloids were subjected to hydroformylation to create an extra functional group that allows immobilization. Cinchonidine, quinine, and quinidine, could be hydroformylated with virtually complete terminal selectivity, using a rhodium/tetraphosphite catalyst. The cinchonidine aldehyde was reduced to the alcohol and subjected to reductive amination with benzylamine.