7560-71-6

Upstream product

• 348-54-9 2-Fluoroaniline 
• 555-16-8 4-nitrobenzaldehdye 
• 126-81-8 dimedone 
• 7560-94-3 2,2'-((4-methoxyphenyl)methylene)bis(3-hydroxy-5,5-dimethylcyclohex-2-enone) 
• 541-57-1 4-hydroxy-2(5H)-furanone 

Downstream Products

• 40588-46-3 9-(4-nitrophenyl)-3,3,6,6-tetramethyl-1,2,3,4,5,6,7,8-octahydroxanthene-1,8-dione 
• 19997-23-0 spiro[(6,6-dimethyl-3-(4-nitrophenyl)-4-oxo-2,3,4,5,6,7-hexahydrobenzofuran)-2,2'-(5,5-dimethylcyclohexane-1,3-dione)] 
• 82408-04-6 3,3-dimethyl-2,3,4,5,10,11-hexahydro-11-[(4-nitro)phenyl]-1H-dibenzo[b,e][1,4]diazepin-1-one 

Relevant academic research and scientific papers

Black yet green: A?heterogenous carbon-based acid catalyst for the synthesis of biscyclic derivatives under eco-friendly conditions

In this study, a simple, cost-efficient and green protocol has been described for the synthesis of biscoumarin and bisdimedone derivatives via one-pot Knoevenagel–Michael reaction of aromatic aldehydes with 4-hydroxycoumarin and dimedone, respectively. Th

2,2′-(Arylmethylene)bis(3-hydroxy-5,5-dimethylcyclohex-2-enone) crystals formation via atom economy reaction and their antioxidant activity

Tetraketones with their diversified biological potencies became a highly significant class of oxygen-containing organic compounds. These are prepared by applying a simple Knoevenagel-Michael cascade procedure with 1,3-dicarbonyl compound and aldehydes. In

Montmorillonite KSF-Catalyzed Synthesis of 2,2′-(Arylmethylene)bis(3-hydroxy-5,5-dimethylcyclohex-2-en-1-ones) for the Functionalization of MCM-41 Silica Nanoparticles

Abstract: A green protocol has been developed for the preparation of 2,2′-(arylmethylene)bis(3-hydroxy-5,5-dimethylcyclohex-2-en-1-ones) following the multicomponent condensation reaction between aromatic alde-hydes and dimedone with excellent yields. The

Green synthesis of tetraketones: crystal structure, DFT studies and Hirshfeld surface analysis of 2,2′-((3,4-dimethoxyphenyl) methylene) bis(3-hydroxy-5,5-dimethylcyclohex2-enone)

The present work deals with a practically efficient protocol designed for the synthesis of tetraketones using ultrasound in the presence of boric acid as the catalyst. One of the tetraketone, (3a) was confirmed by crystallographic studies. The molecules i

A readily accessible porous organic polymer facilitates high-yielding Knoevenagel condensation at room temperature both in water and under solvent-free mechanochemical conditions

A novel nitrogen-rich amorphous porous organic polymer has been synthesized using a microwave-assisted process. Its high chemical stability, reusability and poor solubility enable the use of the porous polymer as a metal-free heterogeneous catalyst for C–

1,8-Diazabicyclo [5.4.0] undec-7-ene functionalized cellulose nanofibers as an efficient and reusable nanocatalyst for the synthesis of tetraketones in aqueous medium

Abstract: 1,8-Diazabicyclo [5.4.0] undec-7-ene functionalized cellulose nanofibers (CNF@DBU[Cl]) were simply prepared and characterized by analytical techniques. Scanning electron microscope confirmed that CNF@DBU[Cl] was formed with average size of 30–60?nm. X-ray diffraction of CNF@DBU[Cl] showed that the crystalline structure of the cellulose nanofibers was remained unchanged after functionalization. According to elemental analyses and thermal gravimetric analysis, the loading amount of organic group on cellulose nanofibers was found to be 1.46?mmol/g. The catalytic activity of DBU functionalized cellulose nanofibers was studied for the synthesis of biologically important tetraketone derivatives in the reaction of aldehydes with 1,3-dicarbonyl compounds. In the presence of CNF@DBU[Cl], the corresponding tetraketones were obtained in 80–96% yields under very mild reaction conditions. The catalyst was recovered and reused four successive runs without significant loss of catalytic activity. This method showed several significant advantages including short reaction times, high yields of products, use of various substrates, convenient work-up, no necessity of extraction or chromatographic purification steps, environmentally friendly conditions and lack of use of any harmful solvent. Graphic abstract: [Figure not available: see fulltext.].

Enhanced catalytic activity of bio-fabricated ZnO NPs prepared by ultrasound-assisted route for the synthesis of tetraketone and benzylidenemalonitrile in hydrotropic aqueous medium

Abstract: Mushroom-like mesoporous and hexagonal ZnO nanoparticles were synthesized from plant extract and chemical method respectively, by co-precipitation method in aqueous medium. Different morphological forms of ZnO NPs were characterized by XRD, TGA, FESEM, EDX, FTIR, UV–Vis and BET. Neem (Azadirachta indica) leaf extract and ultrasound irradiation have a crucial role in the formation of different morphologies of ZnO NPs. ZnO NPs synthesized from plant extract and hydrotrope show a synergistic effect that leads to efficient synthesis of benzylidenemalonitrile and tetraketone derivatives at room temperature in water. Simple preparation of the catalyst, excellent yields, reusability of catalyst with consistent activity and ease of product isolation are the most significant advantages of this green protocol. Graphic abstract: [Figure not available: see fulltext.]

Selective synthesis of spiro and dispiro compounds using Mn(III)-based oxidation of tetracarbonyl compounds

The Mn(III)-based oxidation of methylenebis(cyclohexanedione)s and methylenebis(piperidinedione)s as a tetracarbonyl compound was investigated under various conditions, selectively producing spiro dihydrofurans and dispiro cyclopropanes depending on the solvent. The mechanism for the formation of the spiro dihydrofurans and dispiro cyclopropanes was discussed. In addition, a simple synthesis of a new type of alkaloid, 3,4,6,7,8,10-hexahydro-1H-pyrano[3,2-c:5,6-c’]dipyridine-1,9(2H)-diones, was demonstrated.

Simple and efficient synthesis of 2,2′-arylmethylenebis(3-hydroxy-5,5-dimethyl-2-cyclohexene-1-one) derivatives

Abstract: A simple and efficient method for the synthesis of 2,2′-arylmethylenebis(3-hydroxy-5,5-dimethyl-2-cyclohexene-1-one) derivatives using 4 ? molecular sieves as catalyst is described. This approach offers several advantages such as high yields, mi

Ni0 NPs anchored on acid-activated montmorillonite (Ni0-Mont) as a highly efficient and reusable nanocatalyst for synthesis of biscoumarins and bisdimedones

Ni0 nanoparticles were immobilized on acid-activated montmorillonite (Ni0-Mont) by anchoring Ni(OAc)2·4H2O on modified micro/mesoporous montmorillonite followed by reduction with ethylene glycol. The prepared cl