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%。
Catalytic Enantioselective Mannich-Type Reaction with β-Phenyl Sulfonyl Acetonitrile
作者:Pedro B. González、Rosa Lopez、Claudio Palomo
DOI:10.1021/jo1005872
日期:2010.6.4
The organocatalytic addition of β-phenyl sulfonyl acetonitrile 1 to either N-Boc-protected α-amido sulfones or imines allowed the synthesis of enantioenriched α-unsubstituted β-amino nitriles through a Mannich-type reaction.
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
Quantum mechanics calculation showed that A29 had a higher highest occupied molecular orbit (HOMO) energy and lower vertical ionization potential (IP) value compared to the high bee toxic imidacloprid, showing potentially low bee toxicity. Bee toxicity predictive model also indicated that A29 was nontoxic to honeybees. Our present work identified an innovative insecticidal scaffold and might facilitate