118545-71-4

Upstream product

• 117-99-7 2-Hydroxybenzophenone 
• 4693-91-8 4-methoxyphenyl-acetic chloride 
• 952202-83-4 3-(4-methoxyphenyl)-2-oxo-2H-chromen-4-yl 4-methylbenzenesulfonate 
• 98-80-6 phenylboronic acid 
• 345948-98-3 3-bromo-4-tosyloxy-coumarin 
• 952202-64-1 3-bromo-2-oxo-2H-chromen-4-yl trifluoromethanesulfonate 
• 2650-14-8 3-bromo-4-hydroxycoumarin 
• 1076-38-6 4-hydroxy[1]benzopyran-2-one 
• 696-62-8 para-iodoanisole 
• 391688-53-2 2-oxo-4-phenyl-2H-chromene-3-carboxylic acid 

Relevant academic research and scientific papers

Synthesis of 3,4-disubstituted quinolin-2-(1H)-ones via palladium-catalyzed decarboxylative arylation reactions

The Pd-catalyzed decarboxylative cross-coupling reaction of 4-substituted quinolin-2(1H)-one-3-carboxylic acids with (hetero)aryl halides is described. With palladium(II) bromide and triphenylarsine ligand as the catalyst system, a variety of 4-substituted 3-(hetero)aryl quinolin-2(1 H)-ones and related heterocycles, such as 4-substituted 3-arylcoumarins can be prepared in good to excellent yields. Copyright

General and efficient route for the synthesis of 3,4-disubstituted coumarins via Pd-catalyzed site-selective cross-coupling reactions

(Chemical Equation Presented) Palladium-catalyzed site-selective cross-coupling reactions of 3-bromo-4-trifloxycoumarin or 3-bromo-4- tosyloxycoumarin provide an efficient and facile route for the synthesis of 3,4-disubstituted coumarins, which include 3,

SYNTHESIS OF 3-PHENYLBENZOBENZOPYRANOINDAZOL-8(3H)-ONES AND BENZOPHENANTHROPYRAN-9-ONES BY PHOTOOXIDATION OF 3-ARYL-4-(1-PHENYL-1H-PYRAZOL-4-YL)COUMARINS AND 3,4-DIARYLCOUMARINS

3-Aryl-4-(1-phenyl-1H-pyrazol-4-yl)coumarins (4) and 3,4-diarylcoumarins (5) were synthesised by reaction of 1-phenyl-4-(2'-hydroxybenzoyl)pyrazols (1) and 2-hydroxybenzophenone (2) respectively with arylacetyl chlorides (3) under Phase Transfer Catalysis