An asymmetric hydroformylation catalyst that delivers branched aldehydes from alkyl alkenes was written by Noonan, Gary M.;Fuentes, Jose A.;Cobley, Christopher J.;Clarke, Matthew L.. And the article was included in Angewandte Chemie, International Edition in 2012.SDS of cas: 205927-03-3 This article mentions the following:
A rhodium-catalyzed asym. hydroformylation of terminal alkenes in presence of a phosphine-phosphite chiral ligand is described. Branched chiral aldehydes were obtained in good to excellent enantioselectivities using this strategy. In the experiment, the researchers used many compounds, for example, (S)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol (cas: 205927-03-3SDS of cas: 205927-03-3).
(S)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol (cas: 205927-03-3) belongs to copper catalysts. The transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents has turned up as an exceedingly robust synthetic tool. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.SDS of cas: 205927-03-3
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”