855301-93-8Relevant academic research and scientific papers
Asymmetric Synthesis. XXXIV. Synthesis of Spiro-Piperidine Derivatives via the CN(R,S) Method.
Ribeiro, Carlos M. R.,Melo, Sebastiao J. de,Bonin, Martine,Quirion, Jean-Charles,Husson, Henri-Philippe
, p. 7227 - 7230 (1994)
Key-words: Asymmetric synthesis; spiro-piperidine; 5-azaspiro nonane, 6-azaspiro- decane. - Abstract: 5-Aza-spiro- nonane and 6-aza-spiro- decane derivatives 5 and 9 have been prepared from 2-cyano-6-phenyloxazolopiperidine synthon 2b via alkylation followed by cyclisation of the resulting halogeno aminonitrile under dissolving metal conditions.
A diastereoselective approach for an asymmetric synthesis in pinnaic acid series
Roulland, Emmanuel,Chiaroni, Angèle,Husson, Henri-Philippe
, p. 4065 - 4068 (2007/10/03)
An enantiopure spiran-bearing advanced intermediate in pinnaic acid series was obtained in 11 steps starting with CN(R,S) building block.
Diasteroselective synthesis of new spiropiperidine scaffolds from the CN(R,S) building block
Roulland, Emmanuel,Cecchin, Fabrice,Husson, Henri-Philippe
, p. 4474 - 4477 (2007/10/03)
A methodology allowing the construction of spiropiperidine scaffolds similar to those found in naturally occurring alkaloids has been developed. This approach begins with the well-established CN(R,S) strategy, the spiro-center being built by way of an int
