40588-53-2

Upstream product

• 126-81-8 dimedone 
• 591-31-1 3-methoxy-benzaldehyde 
• 873-95-0 1-amino-5,5-dimethylcyclohexen-3-one 
• 139484-09-6 2,2'-((3-methoxyphenyl)methylene)bis(3-hydroxy-5,5-dimethylcyclohex-2-en-1-one) 

Downstream Products

• 155333-69-0 4-Methoxy-6-(3,3,6,6-tetramethyl-1,8-dioxo-2,3,4,5,6,7,8,9-octahydro-1H-xanthen-9-yl)-benzene-1,3-disulfonyl dichloride 

Relevant academic research and scientific papers

Synthesis of Kaolin/Ag nanocomposite as an efficient and versatile reagent for the synthesis of 1,8-dioxo-octahydroxanthene derivatives

Kaolin/Ag nanocomposite was synthesized in a nano reactor by the calcination of the precursor at high temperature, and shown to efficiently catalyze 1,8-dioxo-octahydroxanthene synthesis via condensation of aromatic aldehydes and 5,5-dimethyl-1,3- cyclohe

Efficient synthesis of decahydroacridine-1,8-diones and polyhydroquinolines using the step-wise method

Various symmetrical and unsymmetrical decahydroacridine-1,8-dione and polyhydroquinoline derivatives were synthesized via two-step cyclocondensation reactions. The advantages of this step-wise addition of reactants in comparison with other one-pot reactions are avoiding the formation of 2 or 3 undesired by-products, therefore allowing cleaner work up of reaction. The important factor of this effective cyclocondensation method is that the prepared β-enaminone component was added dropwise to the solution, in which the Knoevenagel condensation product is slowly being formed by reaction of aldehyde molecule and 1,3-dicarbonyl compounds. The results of the proposed step-wise method are compared and discussed with those obtained in the one-pot reactions.

ChCl: Gly (DESs) promote environmentally benign synthesis of xanthene derivatives and their antitubercular activity

A ChCl: Gly (DESs) promoted environmentally benign method was developed for the first time using the reaction of aryl aldehydes and dimedone to give excellent yields of xanthene analogues. The major application of this present protocol is the use of green

An expedient and straightforward solvent-free synthesis of 1,8-dioxo-octahydroxanthenes using eco-friendly aluminized polyborate catalyst

The present work deals with a catalytic application of aluminized polyborate as a mild solid acid catalyst for multicomponent synthesis of 1,8-dioxo-octahydroxanthenes under solvent-free condition at 100°C-110°C. It involves selective domino Knoevenagel-M

Synthesis of the nano-magnetic ionic liquid based on caffeine and its catalytic application in the synthesis of xanthenes

In this research, a novel nano-sized cube-shaped magnetic ionic liquid based on caffeine was synthesized and characterized by various spectroscopic and analytical techniques including Fourier transform infrared spectroscopy, Raman spectroscopy, proton NMR

Grafting of sulphamic acid on functionalized sawdust: A novel solid acid catalyst for the synthesis of 1,8-dioxo-octahydroxanthenes

Abstract: A solid acid catalyst bearing sulphamic acid on sawdust (SA@Sawdust) was designed as a novel heterogeneous catalyst. The structure of prepared catalyst was assessed by various spectroscopic techniques such as FT-IR, field emission scanning elect

One-pot three-component synthesis of 1,8-dioxooctahydroxanthenes and 14-Aryl-14Hdibenzo[a,j]xanthenes using a new nanostructure zeolite

Abstract: A new modified zeolite containing Fe nanoparticles loaded in zeolite X (Fe-X) has been synthesized and characterized by FT-IR, XRD, EDX and SEM techniques and its catalytic activity has been investigated in the synthesis of two series of xanthen

Immobilized copper-layered nickel ferrite on acid-activated montmorillonite, [(NiFe2O4?Cu)(H+-Mont)], as a superior magnetic nanocatalyst for the green synthesis of xanthene derivatives

In this study, the immobilization of copper-layered nickel ferrite on the surface and in the cavities of acid-activated montmorillonite (H+-Mont) was investigated. In this context, magnetic nanoparticles (MNPs) of NiFe2O4

An efficient catalytic synthesis of 1,8-dioxo-octahydroxanthene derivatives with anti-oxidant scanning

ECO-FRIENDLY aldehydes and dimedone one pot using synthesis non-toxic, is developed easily prepared for 1,8-dioxo-octahydroxanthenes and recyclable catalyst (Sm from2O3/ SiO2) as a silica supported rare earth element under

A nano-composite of magnetite and hot-water-soluble starch: A cooperation resulting in an amplified catalytic activity on water

Bis-coumarins and xanthenes are privileged compounds with diverse pharmaceutical activities. Hence, we introduce here an efficient synthesis of 3,3′-arylmethylene-bis-(4-hydroxycoumarin-3-yl) and 1,8-dioxooctahydroxanthenes under the soft catalytic activi