Search results
Results from the WOW.Com Content Network
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 , all four types being well known.
Sulfonyl groups can be written as having the general formula R−S(=O) 2 −R′, where there are two double bonds between the sulfur and oxygen. [1]: 53 [2] Sulfonyl groups can be reduced to the sulfide with diisobutylaluminium hydride (DIBALH). Lithium aluminium hydride (LiAlH 4) reduces some but not all sulfones to sulfides. [1]: 1851
General structure of a sulfonic acid with the functional group indicated in blue. 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]
A classic preparation of sulfonates is the Strecker sulfite alkylation, in which an alkali sulfite salt displaces a halide, typically in the presence of an iodine catalyst: [1] RX + M 2 SO 3 → RSO 3 M + MX. An alternative is the condensation of a sulfonyl halide with an alcohol in pyridine: [2] ROH + R'SO 2 Cl → ROSO 2 R' + HCl
Sulfinyl halide have the general formula R−S(O)−X, where X is a halogen. They are intermediate in oxidation level between sulfenyl halides , R−S−X, and sulfonyl halides , R−SO 2 −X.
A wide range of organosulfur compounds are known which contain one or more halogen atom ("X" in the chemical formulas that follow) bonded to a single sulfur atom, e.g.: sulfenyl halides, RSX; sulfinyl halides, RS(O)X; sulfonyl halides, RSO 2 X; alkyl and arylsulfur trichlorides, RSCl 3 and trifluorides, RSF 3; [13] and alkyl and arylsulfur ...
The last image we have of Patrick Cagey is of his first moments as a free man. He has just walked out of a 30-day drug treatment center in Georgetown, Kentucky, dressed in gym clothes and carrying a Nike duffel bag.
Tosyl group (blue) with a generic "R" group attached Tosylate group with a generic "R" group attached. Note the extra oxygen, compared to plain tosyl. In organic chemistry, a toluenesulfonyl group (tosyl group, abbreviated Ts or Tos [nb 1]) is a univalent functional group with the chemical formula −SO 2 −C 6 H 4 −CH 3.