A green and practical method for the synthesis of N-arylsulfonamides from chloramine salts and arylboronic acids is herein developed. The reaction proceeds readily in the presence of 5 mol% of CuI and 2.5 equiv. K2CO3 in water at room temperature, generating a variety of N-arylsulfonamides in moderate to good yields with good functional group tolerance.
本文开发了一种从氯胺盐和芳基硼酸合成N-芳基磺酰胺的绿色实用方法。在5mol%的CuI和2.5当量的存在下,反应容易进行。室温下水中的K 2 CO 3,以中等至良好的产率生成各种N-芳基磺酰胺,并具有良好的官能团耐受性。
Synthesis, Structural Analysis and Pharmacological Screening of Chlorinated Sulfonamides
In present work, a facile and environmentally benign series of chlorinated sulfonamides was synthesized and screened against different enzymes. These were geared up by the coupling of 4-chlorobenzenesulfonyl chloride (1) with different substituted aromatic amines (2a-l) under dynamic pH control in aqueous media to form various chlorinated sulfonamides (3a-l). The synthesized chlorinated sulfonamides were spectrally characterized like 1H NMR, IR and EI-MS. The bioactivity of all the synthesized compounds were evaluated against urease, butyrylcholinesterase (BChE) and lipoxygenase (LOX) enzymes and found to be having talented activity against butyrylcholinesterase enzyme.