作者:Annabella F. Newton、Stephen J. Roe、Jean-Christophe Legeay、Pooja Aggarwal、Camille Gignoux、Nicola J. Birch、Robert Nixon、Marie-Lyne Alcaraz、Robert A. Stockman
DOI:10.1039/b907720k
日期:——
Two-directional cross-metathesis of a range of α,ω dienes with a variety of electron deficient alkenes has been accomplished. It was found that the process is quite general and gives complete selectivity for the E,E-dienes, making this a very useful and high yielding protocol for two-directional chain elongation.
Base‐Catalysed Intramolecular Hydroamination of Vinyl Sulfides
作者:Coralie Quinet、Laetitia Sampoux、István E. Markó
DOI:10.1002/ejoc.200900009
日期:2009.4
Small amounts of n-butyllithium catalyse the highly efficient hydroamination of a large variety of vinylsulfides. This novel methodology offers an easy access to a wide range of nitrogen heterocycles, including simple pyrrolidines and piperidines, as well as more complex bicyclic compounds. Subsequent transformations of the sulfur group led to the formation of functionalised alkaloid-like substructures
Two-directional synthesis. Part 2: An expedient entry into the quinolizidine skeleton
作者:Martin Rejzek、Robert A Stockman
DOI:10.1016/s0040-4039(02)01494-6
日期:2002.9
A two-directional synthesis strategy and a tandem deprotection/double intramolecular Michael addition provides a very direct route to the 4,6-disubstituted quinolizidine 4.
Combining two-directional synthesis and tandem reactions: an efficient strategy for the total syntheses of (±)-hippodamine and (±)-epi-hippodamine
作者:Martin Rejzek、Robert A. Stockman、David L. Hughes
DOI:10.1039/b413052a
日期:——
Two-directional total stereoselective syntheses of (+/-)-hippodamine and (+/-)-epi-hippodamine, utilising a tandem deprotection/intramolecular double Michael addition sequence as the key step, are presented.