1346705-00-7

Upstream product

• 1746-23-2 4-tert-Butylstyrene 
• 6272-36-2 1,2-bis(benzenesulfonyl)hydrazine 
• 98-09-9 benzenesulfonyl chloride 
• 939-97-9 4-tert-Butylbenzaldehyde 
• 3112-85-4 methylphenylsulfonate 
• 873-55-2 sodium benzenesulfonate 
• 772-38-3 4-tert-Butylphenylacetylene 
• 220006-53-1 3-(4-(tert-butyl)phenyl)propiolic acid 
• 515-42-4 sodium phenylsulfonate 
• 5535-48-8 PVS 
• 123324-71-0 p-tert-butylphenylboronic acid 

Relevant academic research and scientific papers

Controlled Synthesis of β-Keto Sulfones and Vinyl Sulfones under Electrochemical Oxidation

Selective sulfonylation and oxosulfonylation of alkenes with sulfinates have been developed via anodic oxidation in an undivided cell. The novel electrosynthetic method provided β-keto sulfones and vinyl sulfones with good to excellent yields in the absence of any transition metal catalyst and oxidants. Mechanism studies show that two different pathways involved in these two transformations.

Visible-Light-Induced Three-Component Intermolecular Trifluoromethyl-Alkenylation Reactions of Unactivated Alkenes

Herein, we describe a practical protocol for efficient, mild, visible-light-induced three-component intermolecular trifluoromethyl-alkenylation reactions of unactivated alkenes. The protocol has good functional group tolerance and a broad substrate scope. Using this protocol, we not only introduced a trifluoromethyl group into alkenes but also converted unactivated alkenes to styrene-based activated alkenes, in addition to accomplishing late-stage functionalization of pharmaceutical intermediates. (Figure presented.).

Intermolecular [2 + 2] Photocycloaddition of α,β-Unsaturated Sulfones: Catalyst-Free Reaction and Catalytic Variants

2-Aryl-1-sulfonyl-substituted cyclobutanes were prepared in an intermolecular [2 + 2] photocycloaddition from various α,β-unsaturated sulfones and olefins upon irradiation at λ = 300 nm (26 examples, 60-99% yield). Lewis acids catalyzed the [2 + 2] photocycloaddition of 2-benzimidazolyl styryl sulfones. At short wavelengths, the latter substrates underwent C-S bond cleavage but AlBr3 (5 mol %) allowed for an intermolecular reaction with 2,3-dimethyl-2-butene at longer wavelengths. A chiral-at-metal Lewis acid (2 mol %) facilitated an enantioselective reaction (up to 77% ee).

Pd-Catalyzed Cross-Coupling of Organostibines with Styrenes to Give Unsymmetric (E)-Stilbenes and (1 E,3 E)-1,4-Diarylbuta-1,3-dienes and Fluorescence Properties of the Products

A general and effective palladium-catalyzed cross-coupling of organostibines with styrenes to give (E)-olefins was disclosed. By the use of an organostibine reagent, this method can produce unsymmetric (E)-1,2-diarylethylenes and (1E,3E)-1,4-diarylbuta-1,3-dienes in good yields with high E/Z selectivity and good functional group tolerance. Resveratrol and DMU-212 were synthesized in high yield. The protocol can be extended to the synthesis of (1E,3E,5E)-1,6-diphenylhexa-1,3,5-triene in 40% yield. Products 5e, 5f, and 7a showed good photoluminescence quantum yields ranging from 72 to 99%.

N,N′-Disulfonylhydrazines: New sulfonylating reagents for highly efficient synthesis of (E)-vinyl sulfones at room temperature

N,N′-Disulfonylhydrazines have been proven to be the most reactive precursors of sulfonyl radicals in all types of sulfonyl substituted hydrazines as early as a half century ago. But such function has not been applied in organic synthesis except the formation of disulfones by self-dimerization of sulfonyl radicals. In this article, they were introduced as new sulfonylating reagents and their combinations with NIS and Et3N were established as excellent iodosulfonylating reagents for alkenes. Finally, a highly efficient method for the synthesis of (E)-vinyl sulfones was developed by mixing an alkene, a N,N′-disulfonylhydrazine, NIS and Et3N in THF at room temperature for 5 min.

Phosphoric Acid-Mediated Synthesis of Vinyl Sulfones through Decarboxylative Coupling Reactions of Sodium Sulfinates with Phenylpropiolic Acids

A novel phosphoric acid -mediated synthesis of vinyl sulfones through decarboxylative coupling reactions of sodium sulfinates with phenylpropiolic acids is described. This transformation is efficient and environmentally friendly.

An efficient and facile synthesis of vinyl sulfones via microwave-assisted copper triflate catalyzed hydrosulfonylation of alkynes

An efficient method has been described for the synthesis of vinyl sulfones via hydrosulfonylation of alkynes using sodium arene sulfinates catalyzed by Cu(OTf)2 under microwave irradiation. A variety of vinyl sulfones was obtained in good to ex

An efficient synthesis of vinyl sulfones from alkenes and aryl sulfinates

Vinyl sulfones have been efficiently synthesized by treatment of alkenes with sodium arene sulfinates using potassium iodide and sodium periodate in the presence of a catalytic amount of acetic acid at room temperature. The products are formed in high yie