New Uses for the Burgess Reagent in Chemical Synthesis: Methods for the Facile and Stereoselective Formation of Sulfamidates, Glycosylamines, and Sulfamides
作者:K. C. Nicolaou、Scott A. Snyder、Deborah A. Longbottom、Annie Z. Nalbandian、Xianhai Huang
DOI:10.1002/chem.200400503
日期:2004.11.19
Although the Burgess reagent (methoxycarbonylsulfamoyltriethylammonium hydroxide, inner salt) has found significant use in chemical synthesis as a dehydrating agent, almost no work has been directed towards its potential in other synthetic applications. As this article will detail, we have found that the Burgess reagent is remarkably effective at accomplishing a number of non-dehydrative synthetic
The invention provides a method to prevent or treat HIV-infection with synthetic tannins, and pharmaceutical compositions comprising synthetic tannins.
这项发明提供了一种利用合成单宁预防或治疗HIV感染的方法,以及包含合成单宁的药物组合物。
Hydroalkylation of Olefins To Form Quaternary Carbons
作者:Samantha A. Green、Tucker R. Huffman、Ruairí O. McCourt、Vincent van der Puyl、Ryan A. Shenvi
DOI:10.1021/jacs.9b02844
日期:2019.5.15
Metal-hydride hydrogen atom transfer (MHAT) functionalizes alkenes with predictable branched (Markovnikov) selectivity. The breadth of these transformations has been confined to pi-radical traps; no sp(3) electrophiles have been reported. Here we describe a Mn/Ni dual catalytic system that hydroalkylates unactivated olefins with unactivated alkyl halides, yielding aliphatic quaternary carbons.