100954-23-2

Upstream product

• 18714-37-9 4-hydroxy-3-(phenylsulfanyl)-2H-chromen-2-one 
• 34097-60-4 methyl benzenesulfonylacetate 
• 882-33-7 diphenyldisulfane 
• 1076-38-6 4-hydroxy[1]benzopyran-2-one 

Downstream Products

• 193684-79-6 (S)-1-(3-Benzenesulfonyl-2-oxo-2H-chromen-4-yl)-5-oxo-pyrrolidine-2-carboxylic acid tert-butyl ester 
• 193684-77-4 3-Benzenesulfonyl-4-chloro-chromen-2-one 

Relevant academic research and scientific papers

Sulfenylation of heterocyclic 1,3-dicarbonyl compounds

Anions of heteroaromatic 1,3-dicarbonyl compounds, such as 4-hydoxy-2-quinolones and 4-hydroxy-coumarins, react in DMF in the presence of potassium carbonate with diaryl disulfides to yield 3-arylsulfenyl derivatives. The arylthiolate anions formed in thi

New crystalline N-(coumarin-4-yl)-L-pyroglutamic acid. The first synthesis and application to1H NMR optical purity determination of alcohols and ahines

Condensation of 3-phenylsulfonyl-4-chlorocoumarin with tertbutyl L-pyroglutamate potassium salt followed by desulfonylation and ester-cleavage yielded the novel crystalline N-(coumarin-4-yl)-L-pyroglutamic acid[CPYRO-OH], which being evidenced to be a versatile and reliable 1 H nmr optical purity determination agent for chiral alcohols and amines.