870641-13-7

Upstream product

• 884866-01-7 1-(4-methylbenzensulfonyl)-4-phenyl-1H-1,2,3-triazole 
• 16854-67-4 4-hydroxythiocumarin 
• 98-59-9 p-toluenesulfonyl chloride 

Downstream Products

• 888029-66-1 4-{[4-(4-methoxy-phenoxy)-but-2-ynyl]-methyl-amino}-thiochromen-2-one 
• 888029-70-7 4-{[4-(2,4-dimethyl-phenoxy)-but-2-ynyl]-methyl-amino}-thiochromen-2-one 
• 888029-71-8 4-{[4-(2-bromo-phenoxy)-but-2-ynyl]-methyl-amino}-thiochromen-2-one 
• 888029-69-4 4-{[4-(4-chloro-3,5-dimethyl-phenoxy)-but-2-ynyl]-methyl-amino}-thiochromen-2-one 
• 888029-68-3 4-{[4-(4-tert-butyl-phenoxy)-but-2-ynyl]-methyl-amino}-thiochromen-2-one 
• 888029-65-0 4-{[4-(4-bromo-phenoxy)-but-2-ynyl]-methyl-amino}-thiochromen-2-one 
• 888029-67-2 4-[methyl-(4-m-tolyloxy-but-2-ynyl)-amino]-thiochromen-2-one 

Relevant academic research and scientific papers

Transition metal- and oxidant-free sulfonylation of 1-sulfonyl-1H-1,2,3-triazoles to enols for the synthesis of sulfonate derivatives

A novel and convenient protocol for the synthesis of sulfonate derivatives via DABCO-catalyzed direct sulfonylation of 1-sulfonyl-1,2,3-triazoles to different enols has been established. This synthetic route could effectively avoid the use of transition m

Facile synthesis of 4-acetyl-coumarins, -thiocoumarin and -quinolin-2(1H)-one via very high α-regioselective Heck coupling on tosylates

An efficient synthesis of a series of methyl ketones at the C4 position of coumarins, coumarin-containing heterocycles and analogous scaffolds is reported via very high α-regioselective Heck coupling using tosylates and in very high yields. Although α-reg

Photocycloaddition of 4-(Alk-1-ynyl)-Substituted Coumarins and Thiocoumarins to 2,3-Dimethylbuta-1,3-diene

On irradiation (350a nm) in the presence of 2,3-dimethylbuta-1,3-diene (8), 4-(alk-1-ynyl)coumarins 1 afford mixtures of cyclobuta- and cycloocta-annulated products 9 and 10, respectively. In contrast, the corresponding thiocoumarins 2 react with the same

Studies on amine oxide rearrangement: Synthesis of pyrrolo[3,2-c][1] benzothiopyran-4-one

A methodology, based on tandem [2,3] and [3,3] sigmatropic rearrangement, has been described for the synthesis of hitherto unreported, potentially bioactive pyrrolo[3,2-c][1]benzothiopyran-4-ones (6a-g) derivatives. Copyright Taylor & Francis Group, LLC.

Light-induced coumarin cyclopentannelation

(Chemical Equation Presented) Whereas cyclopentenylcarbenes resulting from photocycloaddition of 4-alk-1-ynylcoumarins to 2,3-dimethylbut-2-ene undergo tandem cyclization to hitherto unknown tetracyclic (4-hetera)cyclopent[b,c] acenaphthylenes, the corres