New Solid Phase Triorganogermanium Hydrides for Radical Synthesis
作者:W. Russell Bowman、Sussie L. Krintel、Mark B. Schilling
DOI:10.1055/s-2004-825585
日期:——
New solid phase triorganogermanium hydrides have been synthesized by the addition of a simple triorganogermanium hydride unit onto QuadragelTM and Merrifield resins. The new solid phase germanium hydrides have been used to mediate a range of synthetic radical reactions.
Highly Enantioselective Synthesis of Glycidic Amides Using Camphor-Derived Sulfonium Salts. Mechanism and Applications in Synthesis
作者:Varinder K. Aggarwal、Jonathan P. H. Charmant、Daniel Fuentes、Jeremy N. Harvey、George Hynd、Diasuke Ohara、Willy Picoul、Raphaël Robiette、Catherine Smith、Jean-Luc Vasse、Caroline L. Winn
DOI:10.1021/ja0568345
日期:2006.2.1
amide-stabilized sulfur ylides derived from readily available camphor-derived sulfonium salts for the synthesis of glycidic amides have been studied. Primary, secondary, and tertiaryamides were tested, and it was found that the highest enantioselectivities were observed with tertiaryamides, which provided glycidic amides in good to excellent yields, exclusive trans selectivity, and excellent enantioselectivities
Tributylgermanium hydride as a replacement for tributyltin hydride in radical reactionsElectronic supplementary information (ESI) available: full experimental details and data. See http://www.rsc.org/suppdata/ob/b3/b310520b/
作者:W. Russell Bowman、Sussie L. Krintel、Mark B. Schilling
DOI:10.1039/b310520b
日期:——
Tributylgermanium hydride (Bu(3)GeH) can be used as an alternative to tributyltinhydride (Bu(3)SnH) as a radical generating reagent with a wide range of radical substrates. Tributylgermanium hydride has several practical advantages over tributyltinhydride, e.g. low toxicity, good stability and much easier work-up of reactions. The reagent can be easily prepared in good yield and stored indefinitely