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Upstream product

• 15795-62-7 2,2-dimethyl-5-(4-nitrobenzylidene)-1,3-dioxane-4,6-dione 
• 135-19-3 β-naphthol 
• 159685-73-1 2-amino-3-cyano-4-(4-nitrophenyl)-4H-benzo[f]chromene 
• 2033-24-1 cycl-isopropylidene malonate 
• 555-16-8 4-nitrobenzaldehdye 

Relevant academic research and scientific papers

An efficient and one-pot synthesis of 1,2-dihydro-3H-naphtho[2,1-b]pyran-3-ones

Three-component and one-pot, reaction between β-naphthol, Meldrum's acid and aryl aldehydes in the presence of piperidine affords 1-aryl-1,2-dihydro-3H-naphtho[2,1-b]pyran-3-ones in excellent yields.

Serendipitous Observation of Liquid-Phase Size Selectivity inside a Mesoporous Silica Nanoreactor in the Reaction of Chromene with Formic Acid

An unprecedented product shape/size selectivity in the hydrolysis/decarboxylation reaction sequences of chromene with formic acid within MCM-41 as a nanoreactor in the liquid phase is observed. Chromene is expected to form pyrimidine in the reaction with

Organocatalytic synthesis of enantioenriched β-arylsplitomicins

By employing a chiral bifunctional thiourea-tertiary amine as catalyst, domino Michael-type Friedel-Crafts alkylation/cyclization of -naphthols with akylidene Meldrum's acids was realized. The reactions afforded various enantioenriched -arylsplitomicins with good yields (up to 99%) in moderate enantioselectivities (up to 79%). Georg Thieme Verlag Stuttgart · New York.