The Asymmetric Total Synthesis of Cephalotaxine
type: CreativeWork
description: A unique method for the formation of [3]benzazepines, via the [3,3]-sigmatropic rearrangement of 1-vinyl-2-aryl-aziridines, has been developed and applied to the synthesis of the Cephalotaxus alkaloids. The synthetic approach begins with D-ribose and utilizes the [3,3] sigmatropic rearrangement of a highly functionalized 1-vinyl-2-aryl aziridine and a diastereoselective intermolecular [3+2] cycloaddition of a non-stabilized azomethine ylide as the key steps. This work has resulted in an asymmetric total synthesis of cephalotaxine in 24 steps and 0.9% overall yield.
abstract: A unique method for the formation of [3]benzazepines, via the [3,3]-sigmatropic rearrangement of 1-vinyl-2-aryl-aziridines, has been developed and applied to the synthesis of the Cephalotaxus alkaloids. The synthetic approach begins with D-ribose and utilizes the [3,3] sigmatropic rearrangement of a highly functionalized 1-vinyl-2-aryl aziridine and a diastereoselective intermolecular [3+2] cycloaddition of a non-stabilized azomethine ylide as the key steps. This work has resulted in an asymmetric total synthesis of cephalotaxine in 24 steps and 0.9% overall yield.
author: Eckelbarger, Joseph David
language: eng
keywords: Chemistry, Organic
date published: 2015-09-25T22:13:32Z
date modified: 2026-07-22T22:26:22Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/84220