40588-52-1

Upstream product

• 33742-94-8 5,5,5',5'-tetramethyl-2,2'-(4-dimethylamino-benzylidene)-bis-cyclohexane-1,3-dione 
• 126-81-8 dimedone 
• 100-10-7 4-dimethylamino-benzaldehyde 

Relevant academic research and scientific papers

Clean synthesis of 1,8-dioxooctahydroxanthenes promoted by DABCO-bromine in aqueous media

An efficient procedure is reported for the synthesis of 3,3,6,6-tetramethyl-9-aryl-1,8-dioxooctahydroxanthenes using a one-pot condensation of arylaldehydes and 5,5-dimethyl-1,3-cyclohexandione in the presence of DABCO-bromine (TDB) as an acid catalyst. To the best of our knowledge this is the first time that DABCO-bromine is used as an acid catalyst in aqueous media for this type of reaction. This method provides several advantages such as use of water as solvent, easy and clean synthesis, simple work up and versatility.

Pulsed laser ablated zeolite nanoparticles: A novel nano-catalyst for the synthesis of 1,8-dioxo-octahydroxanthene and N-aryl-1,8-dioxodecahydroacridine with molecular docking validation

There is an increasing interest in the synthesis of metal nanoparticles (NPs) from bulk metals using pulsed laser ablation in liquids (PLAL), as it offers an easy and simple synthesis route. In this work, zeolite NPs (molecular sieve 4A) were successfully

SnCl2?2H2O catalyzed one-pot three components synthesis of pyrano[4,3-b]chromenes and chromeno[4,3-b]chromenes

A new green method has been presented for the synthesis of some novel derivatives pyrano[4,3-b]chromenes and chromeno[4,3-b]chromenes based on bio-mass triacetic acid lactone or 4-hydroxycoumarine via a one-pot three components condensation reaction of tr

Heterogeneous SO3H@Fe3O4 magnetic nanocatalyst as an efficient and reusable medium for the synthesis of 3,3′-(arylmethylene)-bis-(4-hydroxycoumarin), bis-(indolyl)-methane, and 1,8-dioxo-octahydroxanthene derivatives

This work aimed to synthesize a new heterogeneous catalyst (SO3H@Fe3O4 magnetic nanoparticles) and the study of its catalytic behavior in synthesizing 3,3′-(arylmethylene)-bis-(4-hydroxycoumarin), bis-(indolyl)-methane, an

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

Graphene Oxide Incorporated Strontium Nanoparticles as a Highly Efficient and Green Acid Catalyst for One-Pot Synthesis of Tetramethyl-9-aryl-hexahydroxanthenes and 13-Aryl-5H-dibenzo[b,i]xanthene-5,7,12,14(13H)-tetraones Under Solvent-Free Conditions

An efficient, inexpensive and recyclable graphene oxide/strontium nanocatalyst was synthesized and applied in a pseudo three-component, one-pot cyclocondensation of aromatic aldehydes and dimedone/lowson to afford the corresponding 3,3,6,6-tetramethyl-9-a

Synthesis of xanthenediones by silica supported orthophosphoric acid (H3PO4·SiO2)

The novel protocol was developed for the synthesis of xanthenediones by silica supported orthophosphoric acid (H3PO4·SiO2) as a heterogeneous catalyst. The reported protocol is simple, scalable, mild and effective for the synthesis of xanthenediones. The (H3PO4·SiO2) catalyst demonstrated excellent catalytic activity for various substituted aromatic aldehydes. This catalyst can be reused four times without much loss in catalytic activity.

Calcined oyster shell nanoparticles (COS NPs): a new, efficient and reusable catalyst for one-pot rapid preparation of 1,8-dioxo-octahydroxanthenes under solvent-free conditions

Calcined oyster shell nanoparticles (COS NPs) as a novel heterogeneous nanocatalyst were prepared and fully characterized by X-ray fluorescence analysis, Fourier transform infrared spectroscopy, X-ray powder diffraction, scanning electron microscopy equip

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

Efficient and clean synthesis of 1,8-dioxooctahydroxanthenes in aqueous medium

In this work, an efficient synthesis of 1,8-dioxooctahydroxanthenes in aqueous medium is reported. The reaction was catalyzed by aqueous extract of plant material (pericarp of Sapindus trifoliatus fruit), which makes this protocol 'green' and eco-friendly