Three-Component Synthesis of Homoallylic Amines Promoted by Carboxylic Acids
作者:Gang Zhao、Gui-long Li
DOI:10.1055/s-2006-942548
日期:——
A highly selective, three-component reaction promoted by carboxylic acids for the synthesis of homoallylicamines has been developed. By using maleic acid or trifluoroacetic acid as a promoter, the reaction between a variety of aldehydes, aromatic amines, and allyltin reagents proceeds smoothly to afford the corresponding homoallylicamines in moderate to quantitative yields under mild conditions.
Towards the synthesis of spongistatin 1: Diastereoselective synthesis of the C(36)–C(45) subunit
作者:Glenn C. Micalizio、William R. Roush
DOI:10.1016/s0040-4039(99)00464-5
日期:1999.4
An efficient and highly diastereoselective 12 step synthesis of the C(36)-C(45) subunit (2a) of spongistatin 1 is described. The synthesis features highly diastereoselective alpha-alkoxyallylation reactions using the gamma-alkoxy substituted allylstannanes 5 and 6, and a thermodynamically controlled intramolecular Michael addition to close the pyran, (C) 1999 Elsevier Science Ltd. All rights reserved.