112970-56-6

Upstream product

• 112970-51-1 N-(2-bromo-4-chlorophenyl)-4-methylbenzenesulfonamide 
• 7486-35-3 tri-n-butyl(vinyl)tin 
• 98-59-9 p-toluenesulfonyl chloride 
• 873-38-1 4-chloro-2-bromoaniline 

Downstream Products

• 32617-55-3 5-chloro-1-p-toluenesulfonylindole 
• 17422-32-1 5-chloro-1H-indole 

Relevant academic research and scientific papers

Metal-free intramolecular amino-acyloxylation of 2-aminostyrene with carboxylic acid for the synthesis of 3-acyloxyl indolines in water

A metal-free amino-acyloxylation of 2-aminostyrene was developed for the synthesis of 3-acyloxyl indolines. In the presence of N,N,N-trimethyldodecan-1-aminium iodide and TBHP, the reaction can be carried out in water smoothly with various carboxylic acids. And for internal alkenes, a stereoselective product was formed.

Directing-group-assisted markovnikov-selective hydrothiolation of styrenes with thiols by photoredox/cobalt catalysis

In contrast with the well-developed radical thiol-ene reaction to access anti-Markovnikov-type products, the research on the catalytic Markovnikov-selective hydrothiolation of alkenes is very restricted. Because of the catalyst poisoning of metal catalysts by organosulfur compounds, limited examples of transition-metal-catalyzed thiol-ene reactions have been reported. However, in this work, a directing-group-assisted hydrothiolation of styrenes with thiols by photoredox/cobalt catalysis is found to proceed smoothly to afford Markovnikov-type sulfides with excellent regioselectivity.

Electrochemical-mediated fixation of CO2: three-component synthesis of carbamate compounds from CO2, amines andN-alkenylsulfonamides

An electrocatalyzed three-component cascade reaction of CO2, amines, andN-alkenylsulfonamides is developed, providing an environmentally friendly and efficient method of synthesizing a series of new carbamate compounds. This reaction meets the needs of green chemistry and promotes the participation of carbon dioxide in the three-component reaction by electro-oxidation. Pharmacological activity studies further prove that carbamate compounds have better activity than diamination by-products.

Visible-Light-Driven Neutral Nitrogen Radical Mediated Intermolecular Styrene Difunctionalization

A neutral nitrogen radical-mediation strategy, wherein the existing N-H moiety of substrates serves as a neutral nitrogen radical precursor to enable room-temperature intermolecular radical difunctionalization of styrenes under photoredox catalysis, is reported. The reaction shows high functional group tolerance and substrate scope with respect to both components, giving the corresponding products with generally good yields. Preliminary control experiments and DFT calculations are performed to explain the reaction mechanism.

Palladium-Catalyzed Coupling of 2-Bromoanilines with Vinylstannanes. A Regiocontrolled Synthesis of Substituted Indoles

The palladium-catalyzed cross-coupling reaction of aryl halides and triflates with vinylstannane reagents has been used to produce a variety of substituted indoles.The mild reaction conditions and selectivity inherent in the coupling reaction have been utilized to produce regiochemically pure 4-, 5-, and 6-substituted indoles.