The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Bis(norbornadiene)rhodium (I) tetrafluoroborate(SMILESS: [F-][B+3]([F-])([F-])[F-].C12=C3[Rh+]14567(C8=C5C9C6=C7C8C9)C%10=C4C2CC3%10,cas:36620-11-8) is researched.Reference of Bis(norbornadiene)rhodium (I) tetrafluoroborate. The article 《Access to α-Aminophosphonic Acid Derivatives and Phosphonopeptides by [Rh(P-OP)]-Catalyzed Stereoselective Hydrogenation》 in relation to this compound, is published in Journal of Organic Chemistry. Let’s take a look at the latest research on this compound (cas:36620-11-8).
The hydrogenation of N-substituted vinylphosphonates using rhodium complexes derived from P-OP ligands L1, ent-L1 or (R,R)-Me-DuPHOS as catalysts has been successfully accomplished, achieving very high levels of stereoselectivity (up to 99% ee or de). The described synthetic strategy allowed for the efficient preparation of alpha-aminophosphonic acid derivatives, e.g. I, and phosphonopeptides, e.g. II, which are valuable building blocks for the preparation of biol. relevant mols.
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Reference:
Quinuclidine – Wikipedia,
Quinuclidine | C7H13N | ChemSpider