Fluorinated Diazo Diketones in Rhodium(II)-Catalyzed Reactions with Sultams: ChemoselectiveO-Functionalization of Amide Carbonyl Groups
作者:Valeria M. Zakharova、Bärbel Schulze、Ludmila L. Rodina、Joachim Sieler、Valerij A. Nikolaev
DOI:10.1002/hlca.200590146
日期:2005.7
diketones in the presence of isothiazole-3(2H)-one 1,1-dioxides offers a chemoselective and useful tool for O-functionalization of their CO groups by interaction with transient fluorine-containing RhII-diketocarbenoids. The resulting O-alkylimidates of isothiazole 1,1-dioxides, bearing (trifluoromethyl)acetyl groups, easily react with traces of H2O giving rise to stable hydrates of the perfluoroacetyl
在异噻唑-3(2 H)-1存在下,铑(II)催化的氟化重氮二酮的分解为1,1-二氧化物提供了一种化学选择性和有用的工具,可通过与瞬态含氟化合物相互作用来对其CO基进行O-官能化Rh II-二酮类化合物。所得的带有(三氟甲基)乙酰基的异噻唑1,1-二氧化物的O-烷基亚氨酸酯容易与痕量的H 2 O反应,产生稳定的全氟乙酰基水合物。没有ø Ñ的异构化ø -alkylimidates(类似于兰德-查普曼重排)研究了反应条件下进行了观察。