Yin, Congcong; Yang, Tao; Pan, Yingmin; Wen, Jialin; Zhang, Xumu published the article 《Rh-Catalyzed Asymmetric Hydrogenation of Unsaturated Medium-Ring NH Lactams: Highly Enantioselective Synthesis of N-Unprotected 2,3-Dihydro-1,5-benzothiazepinones》. Keywords: unsaturated lactam enantioselective hydrogenation rhodium Zhaophos catalyst; dihydrobenzothiazepinone stereoselective preparation.They researched the compound: Bis(norbornadiene)rhodium (I) tetrafluoroborate( cas:36620-11-8 ).Category: quinuclidine. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:36620-11-8) here.
A straightforward method to prepare 1,5-benzothiazepines was reported. Catalyzed by a Rh/Zhaophos complex, unsaturated cyclic NH lactams with a medium-size ring were hydrogenated smoothly, giving remarkably high enantioselectivities. The sulfur atom in the substrates did not bring an inhibition which was observed with com. available bisphosphine ligands. This method was successfully applied in the scale-up synthesis of (R)-(-)-thiazesim.
As far as I know, this compound(36620-11-8)Category: quinuclidine can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.
Reference:
Quinuclidine – Wikipedia,
Quinuclidine | C7H13N | ChemSpider