89368-89-8Relevant academic research and scientific papers
Synthesis of Methylene-Bridged Biscarbazole Alkaloids by using an Ullmann-type Coupling: First Total Synthesis of Murrastifoline-C and Murrafoline-E
Kutz, Sebastian K.,B?rger, Carsten,Schmidt, Arndt W.,Kn?lker, Hans-Joachim
, p. 2487 - 2500 (2016/02/14)
We describe the total synthesis of methylene-bridged biscarbazole alkaloids by using a late-stage Ullmann-type coupling of fully functionalised carbazole subunits. The carbazole derivatives were synthesised via a sequence of palladium(0)- and palladium(II
First total syntheses of chrestifoline-B and (±)-chrestifoline-C, and improved synthetic routes to bismurrayafoline-A, bismurrayafolinol and chrestifoline-D
Boerger, Carsten,Schmidt, Arndt W.,Knoelker, Hans-Joachim
, p. 3831 - 3835 (2014/06/09)
We describe an efficient synthesis of the methylene-bridged biscarbazole alkaloids bismurrayafoline-A, bismurrayafolinol and chrestifoline B-D using an Ullmann-type coupling at the benzylic position. This journal is the Partner Organisations 2014.
Novel approach to biscarbazole alkaloids via Ullmann coupling - Synthesis of murrastifoline - A and bismurrayafoline - A
B?rger, Carsten,Kataeva, Olga,Kn?lker, Hans-Joachim
, p. 7269 - 7273 (2012/10/07)
Unprecedented Ullmann couplings of murrayafoline-A with either 6-bromo- or 4-bromocarbazole derivatives provide highly efficient synthetic routes to the biscarbazole alkaloids murrastifoline-A (6 steps, 66% overall yield) and bismurrayafoline-A (6 steps, 28% overall yield).
Synthesis of methylene-bridged binary carbazole alkaloids and a related tricarbazole
Bringmann, Gerhard,Tasler, Stefan
, p. 2337 - 2343 (2007/10/03)
The first synthesis of the methylene-bridged binary carbazole alkaloids bismurrayafoline-A and chrestifoline-A is described. As an interesting side product, a likewise benzylically connected trimer was identified, a potential natural product.
