In this paper, the reflection-absorption infrared (IR) spectroscopic method combined with the principle of solid-phase micro-extraction (SPME) is proposed to detect chlorinated aromatic amines in aqueous solutions. This proposed method provides simplicity in both the optical system and equipment setup. Compared to the SPME/attenuated total reflection-IR method, this method reduces the cost for ...

Amines are the most important building blocks employed in modern medicinal chemistry. Secondary amines are regularly prepared by the alkylation or reductive amination of the parent amines through transition metal, typically precious metals, catalyzed reactions. In the past few years, the catalytic alkylation of amines with alcohols under hydrogenborrowing conditions as well as the catalytic red...

The metalated ylide YNa [Y=(Ph3 PCSO2 Tol)- ] was employed as X,L-donor ligand for the preparation of a series of boron cations. Treatment of the bis-ylide functionalized borane Y2 BH with different trityl salts or B(C6 F5 )3 for hydride abstraction readily results in the formation of the bis-ylide functionalized boron cation [Y-B-Y]+ (2). The high donor capacity of the ylide ligands allowed th...

in natural gas treatment, the removal of co2 and h2s in acid gases is a critical concern. there are various purification technologies that can be used for the removal of acid gas impurities. absorption of acid gas into amines is one preferred method in gas industries. in the past, single amines was used, but recently in order to improve absorption performance, mixed amines with different solubi...

Chiral amines are a highly important class of compounds for which powerful synthetic approaches remain in high demand. Herein, we report an unprecedented method the preparation chiral α-amino amides from cheap and abundant starting materials. Our strategy relies on direct amination using enantiopure sulfinamides. It involves [2,3]-sigmatropic rearrangement key sulfonium intermediate. We further...