Chiral biomimetic NADH models in the benzo[b]-1,6-naphthyridine series. A novel class of stable, reactive and highly enantioselective NADH mimics
作者:J Vasse
DOI:10.1016/s0040-4020(03)00706-3
日期:2003.6.23
The preparation of a new class of tricyclic models 1 based on a Friedländer reaction between chiral piperidine-2,4-diones 2 and azomethine 3 is reported. Alkylation of the lactam allowed to install various pendant arms on the chiral cyclic inducer. The so-obtained mimics 1a,d,f,g,h,k were involved in the reduction of methyl benzoylformate to furnish methyl mandelate in 4–87% ee (R). The presence of
Simple reagent for the synthesis of oligonucleotides labeled with 3,3,3′,3′-tetramethyl-2,2′-indodicarbocyanine
作者:M. V. Kvach、S. V. Gontarev、I. A. Prokhorenko、I. A. Stepanova、V. V. Shmanai、V. A. Korshun
DOI:10.1007/s11172-006-0230-2
日期:2006.1
Synthesis of a phosphoramidite reagent for the preparation of oligonucleotides labeled at the 5′-end with a fluorescent dye, 3,3,3′,3′-tetramethyl-2,2′-indodicarbocyanine, is described. The efficiency of this reagent is confirmed by the synthesis of several labeled oligonucleotides.
Boronic Acid Mediated Carbocyanation of Olefins and Vinylation of Alkyl Iodides
作者:Reina Hara、Chahinaz Khiar、Nitin S. Dange、Pierre Bouillac、Frédéric Robert、Yannick Landais
DOI:10.1002/ejoc.201800444
日期:2018.8.15
The tin‐free carbocyanation of olefins and the addition of alkyliodides to vinylsulfones were developed by using phenylboronic acid as an aryl radical precursor and tin surrogate. The resulting aryl radical then selectively abstracted an iodineatom from the alkyliodide to generate a radical that was employed in C–C bond forming processes.