81562-72-3

Upstream product

• 2297-64-5 p-bromophenylsulfonyl hydrazide 
• 536-74-3 phenylacetylene 
• 98-58-8 4-bromobenzenesulfonyl chloride 
• 92576-89-1 N,N'-di(4-bromophenylsulfonyl)hydrazine 

Relevant academic research and scientific papers

Electrochemical Induced Regio- and Stereoselective Difunctionalization of Alkynes: The Synthesis of (E)-β-Iodovinyl Sulfones

An efficient, green, and oxidant-free electrochemical method for alkyne difunctionalization was described. Using undivided electrochemical cell for iodosulfonylation of alkynes with commercially available iodide radical (NaI), arylsulfonyl radical (ArSOs

Transition-metal-free NaI-mediated reaction of aryl sulfonyl chloride with alkynes: Synthesis of (E)-β-iodovinyl sulfones

A novel protocol for synthesis of (E)-β-Iodovinyl sulfones via NaI-mediated of aryl sulfonyl chloride with alkynes is described, featuring transition-metal-free condition, commercial available substrates, convenient operation, as well as good functional group compatibility. A wide variety of substrate application and good functional group tolerance is provided by this approach, giving multiple (E)-β-Iodovinyl sulfones analogues with excellent yields (up to 98%, >4 g scale).

Introduction of N,N'-disulfonylhydrazines as new sulfonylating reagents for highly efficient synthesis of (E)-β-iodovinyl arenesulfones under mild conditions

N,N'-Disulfonylhydrazines have been proven to be the most reactive precursors of the sulfonyl radicals among all types of sulfonyl substituted hydrazines as early as half a century ago. However, the sulfonyl radicals generated from these compounds have no

Synthetic method of beta-iodo-alkenyl sulfone compound

The invention discloses a synthetic method of a beta-iodo-alkenyl sulfone compound. The synthesis method comprises the following steps: mixing an alkyne derivative, a sulfonyl hydrazine derivative, iodine pentoxide and a solvent to obtain a mixed solution

Iodine promoted iodosulfonylation of alkynes with sulfonyl hydrazides in an aqueous medium: Highly stereoselective synthesis of (E)-β-iodo vinylsulfones

A catalyst-free and metal-free sulfonylation reaction for the preparation of (E)-β-iodo vinylsulfones from alkynes with sulfonyl hydrazides and molecular iodine was efficiently developed under mild and environmentally benign conditions, in water without any ligand or catalyst. The reaction gave a range of structurally diverse β-iodo vinylsulfones with excellent E selectivities and high yields.

Tetrabutylammonium Iodide Mediated Synthesis of β-Alkoxy Sulfides and Vinyl Sulfones by Using Benzenesulfonyl Chlorides as the Sulfur Sources under Acidic or Alkaline Conditions

The tetrabutylammonium iodide (TBAI)-promoted generation of sulfur-containing compounds from benzenesulfonyl chlorides and alkenes is described. Under acidic condition, a wide range of β-alkoxy sulfides were obtained in good to excellent yields, whereas under alkaline conditions, various vinyl sulfones were produced in moderate to good yields. A novel preparation of (E)-β-iodovinyl sulfones was achieved through direct difunctionalization of alkynes with benzenesulfonyl chlorides and TBAI.

I2/TBHP-mediated reaction of sulfonylhydrazides with alkynes: Synthesis of (E)-β-iodovinyl sulfones

An efficient and simple procedure for the syntheses of (E)-β-iodovinyl sulfones through TBHP mediated reaction of sulfonylhydrazides and iodine with aryl acetylenes has been developed. This method offers several advantages such as high atom economy, envir