73326-87-1Relevant academic research and scientific papers
Trapping of Intermediates in the Interconversion of Heteroyohimbine Alkaloids
Kan, Christiane,Kan, Siew-Kwong,Lounasmaa, Mauri,Husson, Henri-Philippe
, p. 269 - 272 (2007/10/02)
The isolation of (Z)-isositsirikines 8 and 9 in the course of NaBH4 reduction of 19-epicathenamine 2 demonstrates the intermediacy of the (Z)-conjugated iminium salt 5 in the interconversion of the heteroyohimbine alkaloids.A 400 MHz 1H NMR study carried out on compounds 1, 2, and 6-9 permitted the determination of all the chemical shifts and most of the coupling constants.
