In organosulfur chemistry, a sulfonyl group is either a functional group found primarily in sulfones, or a substituent obtained from a sulfonic acid by the removal of the hydroxyl group, similarly to acyl groups.

磺酰基(sulfonyl group)是指磺酸失去羟基后的官能团，实际上是一个酰基。 磺酰基可以写为R-S(=O)2-，其中在硫和氧之间有两个配位键。 无机化学中，如果基团-S(=O)2-不连接任何碳原子，称作硫酰(sulfuryl)。

In chemistry, a sulfonyl halide consists of a sulfonyl (>S(=O) 2) group singly bonded to a halogen atom. They have the general formula RSO 2 X , where X is a halogen. The stability of sulfonyl halides decreases in the order fluorides > chlorides > bromides > iodides , …

In organic chemistry, sulfonic acid (or sulphonic acid) refers to a member of the class of organosulfur compounds with the general formula R−S(=O) 2 −OH, where R is an organic alkyl or aryl group and the S(=O) 2 (OH) group a sulfonyl hydroxide. [1] …

磺酰基(sulfonyl group)是指磺酸失去羟基后的功能团，实际上是一个酰基。 磺酰基可以写为R-S(=O) 2 -, 其中在硫和氧之间有两个双键. 无机化学 中, 如果基团-S(=O) 2 -不连接任何碳原子, 称作 硫酰 (sulfuryl).

2014年3月22日 · 磺酰系基团除了做保护基团以外也可有其他用途，它在酸性条件和氧化条件下是强的保护基团。 经常被使用的磺酰系基团有甲磺酰基、苯甲磺酰基、硝基苯甲磺酰基、三氟甲磺酰基等。 醇用磺酰基保护后，它的离去能增加，容易发生置换、消去反应。 因此，脂肪醇用磺酰基保护的例子不多见，另一方面，可利用保护基的电子吸引性，能使富电子的酚类物质难被氧化，起到保护的目的。 同样，磺酰基对胺的保护也很有效，经保护后的胺的亲核性和碱性都被吸电 …

A sulfonyl group is defined as a common protecting group used in chemistry to protect pyrrole at nitrogen due to its strong electron-withdrawing effect, which reduces the reactivity of pyrrole and allows for a wider range of reactions with higher yields in regioselective alkenylation and acylation at specific positions.

sulfonyl，英语单词，主要用作名词，作名词时译为“[有化] 磺酰，磺酰基（等于sulphonyl）”。

Sulfonamides as synthetic antifolic agents have been widely used for the anticipation and treat of bacterial infections in biological systems and recently have evoked high favor in biology and medicine due to their wide array of biological activities such as antibacterial [4–6], antifungal [7], anti-inflammatory [8–10], antioxidant [11, 12], diu...

Organosulfur compound - Sulfinyl, Sulfonyl, Compounds: In sulfoxides, R―S(=O)―R′, and sulfones, R―S(=O)2―R′, groups R and R′ both contain a carbon atom bonded to sulfur.