354816-61-8Relevant articles and documents
Kinetic resolution of allylic esters in palladium-catalyzed asymmetric allylic alkylations using C-N bond axially chiral aminophosphine ligands
Mino, Takashi,Wakui, Kazuya,Oishi, Shunsuke,Hattori, Youtaro,Sakamoto, Masami,Fujita, Tsutomu
scheme or table, p. 2711 - 2716 (2009/04/12)
Chiral allylic esters, such as (R)-1,3-diphenyl-2-propenyl acetate (R)-2a, were synthesized by kinetic resolution in a palladium-catalyzed asymmetric allylic alkylation using N-aryl indoline type C-N bond axially chiral aminophosphines (S)-1 as ligands.
A Case for Enantioselective Allylic Alkylation Catalyzed by Palladium Nanoparticles
Jansat, Susanna,Gomez, Montserrat,Philippot, Karine,Muller, Guillermo,Guiu, Ester,Claver, Carmen,Castillon, Sergio,Chaudret, Bruno
, p. 1592 - 1593 (2007/10/03)
Palladium nanoparticles (4 nm, fcc) were prepared through decomposition of [Pd2(dba)3] by H2 in the presence of a chiral xylofuranoside diphosphite. These particles catalyze the allylic alkylation of rac-3-acetoxy-1,3-diphenyl-1-propene with dimethyl malonate leading to an almost total conversion of the (R) enantiomer and almost no reaction with the (S). This gives rise to 97% ee for the alkylation product and a kinetic resolution of the substrate recovered with ca. 90% ee. This behavior was compared to that of a molecular catalyst at various dilutions, and the differences between the two systems are discussed. This is the first colloidal system shown to display such a high enantioselectivity besides the well-known Pt/cinchonidine system. Copyright
Pd-catalyzed asymmetric synthesis of allylic tert-butyl sulfones and sulfides: Kinetic resolution of the allylic substrate by a chiral Pd-complex
Gais, Hans-Joachim,Eichelmann, Holger,Spalthoff, Nicole,Gerhards, Frank,Frank, Michael,Raabe, Gerhard
, p. 235 - 248 (2007/10/03)
The acyclic and cyclic allylic tert-butyl sulfones 3, ent-3, 11a, 11b and 15a-c of 89-98% ee were synthesized in 40-92% yield by a Pd-catalyzed reaction of the respective allylic acetates and carbonates rac-1a, rac-1b, rac-10a, rac-10b and rac-14a-c with