In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Large Scale Practical Synthesis of Enantiomerically Pure cis-4-Amino-3-fluoro-1-methylpiperidine via Rhodium-Catalyzed Asymmetric Hydrogenation of a Tetrasubstituted Fluoroalkene, published in 2021-03-19, which mentions a compound: 36620-11-8, mainly applied to amino fluoro methylpiperidine enantioselective regioselective chemoselective green preparation scaleup; tetrasubstituted fluoroalkene hydrogenation rhodium catalyst, Product Details of 36620-11-8.
The development of multi kilo-gram scale green and economical synthetic route of enantiomerically pure cis-4-amino-3-fluoro-1-methylpiperidine I was described. The synthesis featured a highly regio-, chemo- and enantioselective asym. hydrogenation of N-benzyl-4-((tert-butoxycarbonyl)amino)-5-fluoro-tetrahydropyridinium chloride. No purification or chiral enrichment was necessary due to high selectivity resulting from proper selection of catalyst system Rh(NBD)2(BF4) and Walphos 003. The crude product N-benzyl piperidine was carried directly to N-methylpiperidine utilizing a highly effective one-pot debenzylation and reductive amination protocol. The target compound 1•2HCl was prepared in 66-68% overall yield with >99% ee and >98.5% purity from available compound 3-fluoropyridin-4-amine with a Process Mass Intensity of 150.
After consulting a lot of data, we found that this compound(36620-11-8)Product Details of 36620-11-8 can be used in many types of reactions. And in most cases, this compound has more advantages.
Reference:
Quinuclidine – Wikipedia,
Quinuclidine | C7H13N | ChemSpider