Cooperative Palladium/Lewis Acid-Catalyzed Transfer Hydrocyanation of Alkenes and Alkynes Using 1-Methylcyclohexa-2,5-diene-1-carbonitrile
作者:Anup Bhunia、Klaus Bergander、Armido Studer
DOI:10.1021/jacs.8b10651
日期:2018.11.28
represents a clean and safe alternative to hydrocyanation processes using toxic HCN gas. Such reactions provide access to pharmaceutically important nitrile derivatives starting with alkenes and alkynes. Herein, an efficient and practical cooperative palladium/Lewis acid-catalyzed transfer hydrocyanation of alkenes and alkynes is presented using 1-methylcyclohexa-2,5-diene-1-carbonitrile as a benign and readily
Fluorinated cyclohexanes: Synthesis of amine building blocks of the all-<i>cis</i> 2,3,5,6-tetrafluorocyclohexylamine motif
作者:Tetiana Bykova、Nawaf Al-Maharik、Alexandra M Z Slawin、David O'Hagan
DOI:10.3762/bjoc.13.72
日期:——
This paper reports the synthesis of three amine stereoisomers 5a-c of the tetrafluorocyclohexyl ring system, as buildingblocks for discovery chemistry programmes. The synthesis starts from a Birch reduction of benzonitrile, followed by an in situ methyl iodide quench. The resultant 2,5-cyclohexadiene was progressed via double epoxidations and then hydrofluorination ring opening reactions. The resultant