Advances in Organic Synthesis

Advances in Organic Synthesis

Volume: 9

Indexed in: Scopus, EBSCO, Ulrich's Periodicals Directory

Advances in Organic Synthesis is a book series devoted to the latest advances in synthetic approaches towards challenging structures. The series presents comprehensive reviews written by eminent ...
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Asymmetric Hydrogenation of Tetrasubstituted Olefins

Pp. 1-24 (24)

Kristen Ryan and Robert B. Kargbo

Abstract

The asymmetric hydrogenation of tetrasubstituted olefins has been one of the most formidable challenges in the reduction of olefins. While the reduction of diand tri-substituted olefins has grown at a rapid pace, the reduction of tetrasubstituted olefins has grown at a much slower rate. However, there have been a number of pivotal breakthroughs, from the reports of Zhou and Buchwald to the advent of the discovery of the chiral phosphoramidite ligands. In addition, high throughput experimentation has been very beneficial in the discovery of rapid and useful reaction conditions to affect remarkable selectivities. This led to the discovery of rhodium-Josiphos based catalysts, which have been frequently used in the asymmetric reduction of tetrasubstituted olefins.

Keywords:

Asymmetry, Breakthroughs, Enantiotopic, Environmental, Functionalized, High throughput screening, Hydrogenation, Hydrogenolysis, Indenes, Iridium, Josiphos ligand, Ligands, Olefins, Palladium, Phosphoramidite ligands, Rhodium, Ruthenium, Selectivity, Tetrasubstituted, Unfunctionalized, Zirconium.

Affiliation:

Usona Institute, 277 Granada Drive, San Luis Obispo, CA 93401, USA.