Synthesis of Unsymmetrical Vicinal Diamines via Directed Hydroamination
作者:Byung Joo Lee、Andrew R. Ickes、Anil K. Gupta、Seth C. Ensign、Tam D. Ho、Anika Tarasewicz、Evan P. Vanable、Gregory D. Kortman、Kami L. Hull
DOI:10.1021/acs.orglett.2c01911
日期:2022.8.5
found in biologically active molecules. The hydroamination of allyl amine derivatives is a powerful approach for the synthesis of substituted 1,2-diamines. Herein, the rhodium-catalyzed hydroamination of primary and secondary allylic amines using diverse aminenucleophiles, including primary, secondary, acyclic, and cyclic aliphatic amines to access a wide range of unsymmetrical vicinal diamines, is presented
Regio- and Chemoselective Intermolecular Hydroamination of Allyl Imines for the Synthesis of 1,2-Diamines
作者:Andrew R. Ickes、Seth C. Ensign、Anil K. Gupta、Kami L. Hull
DOI:10.1021/ja505794u
日期:2014.8.13
The synthesis of 1,2-diamines via a Rh-catalyzed intermolecular hydroamination of N-allyl imines with cyclic amines is presented. Coordinating groups proximal to the olefin bind to the catalyst and promote the transformation. The reaction affords 1,2-diamines in very good yields and is functional-group-tolerant and highly diastereoselective.
Enantioselective synthesis of 1-aryl-2-propenylamines: a new approach to a stereoselective synthesis of the Taxol® side chain
lipase-catalysed resolution of the corresponding racemates. (R)-1-Phenyl-2-propenylamine was further synthesised into (2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropanoic acid methyl ester, the side chain of Taxol®.
Flexible synthesis of polyfunctionalised 3-fluoropyrroles
作者:Thomas J. Cogswell、Craig S. Donald、Rodolfo Marquez
DOI:10.1039/c5ob02155c
日期:——
An efficient and selective approach for the synthesis of polyfunctionalised 3-fluoropyrroles has been developed starting from commercial aldehydes. The methodology is concise, efficient and allows for the modular and systematic assembly of polysubstituted 3-fluoropyrroles. This synthesis provides an alternative and highly convergent strategy for the generation of these chemically and biologically important