construction of carbon–sulfur bonds has been achieved via halogen-free Cs2CO3-promoted cross dehydrogenative coupling (CDC) of thiophenols with acetonitrile. This transformation provides a straightforward route to the synthesis of sulfenylated acetonitriles in up to 80% yield.
通过无卤的Cs 2 CO 3促进的硫酚与乙腈的交叉脱氢偶联(CDC),实现了构建碳-硫键的新方法。这种转化为亚磺酰化乙腈的合成提供了一条简单的途径,产率高达80%。
Iron-catalysed carbene-transfer reactions of diazo acetonitrile
作者:Claire Empel、Katharina J. Hock、Rene M. Koenigs
DOI:10.1039/c8ob01991f
日期:——
A continuous-flow protocol for the synthesis of diazo acetonitrile was developed. It was further applied in iron-catalysed insertion reactions of diazo acetonitrile into N–H and S–H bonds to yield valuable α-substituted acetonitrile, including gram-scale synthesis.
Dealkylative intercepted rearrangement reactions of sulfur ylides
作者:Claire Empel、Katharina J. Hock、Rene M. Koenigs
DOI:10.1039/c8cc08821g
日期:——
Sulfur ylides are well-known to undergo sigmatropic rearrangementreaction. Herein, we describe a novel reactivity of sulfur ylides, which provides access to the product of a formal functional group metathesis upon dealkylative interception of the rearrangement process. Using a simple iron catalyst and in situ generated diazoalkanes this method provides access to α-mercaptoacetonitrile derivatives