71827-79-7

Upstream product

• 17696-53-6 N-(4-hydroxy-3-methoxybenzylidene)aniline 
• 126-81-8 dimedone 
• 121-33-5 vanillin 

Downstream Products

• 1011735-73-1 12-(4-hydroxy-3-methoxyphenyl)-9,9-dimethyl-9,10-dihydro-8H-benzo[a]xanthen-11(12H)-one 
• 30038-65-4 9-(4-hydroxy-3-methoxyphenyl)-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione 

Relevant academic research and scientific papers

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

Synthesis and characterization of the immobilized Ni-Zn-Fe layered double hydroxide (LDH) on silica-coated magnetite as a mesoporous and magnetically reusable catalyst for the preparation of benzylidenemalononitriles and bisdimedones (tetraketones) under

Herein, novel magnetic Fe3O4@SiO2@Ni-Zn-Fe layered double hydroxide (LDH) intercalated with water molecules and carbonate anions as interlayer contents was prepared as a new heterogeneous and separable nanocatalyst. The me

In water–ultrasound-promoted synthesis of tetraketones and 2-substituted-1H-benzimidazoles catalyzed by BiOCl nanoparticles

A highly efficient, green protocol has been developed for the synthesis of various structurally diverse 2,2′-arylmethylene bis(3-hydroxy-5,5-dimethyl-2-cyclohexene-1-one) and 2-substituted-1H-benzimidazole derivatives. The reaction was performed in water under ultrasound irradiation, using BiOCl nanoparticles as a catalyst. The nanocatalyst was found to be reusable for seven subsequent reactions without much loss in activity. Simple methodology with short reaction times and mild reaction conditions with easy work-up procedure are the salient features of this method.

Method for catalytically synthesizing xanthenedione compound open ring derivatives through hydroxyl ammonium ionic liquid

The invention discloses a method for catalytically synthesizing xanthenedione compound open ring derivatives through hydroxyl ammonium ionic liquid, and belongs to the technical field of green synthesis of fine chemicals. According to the technical scheme

Domino Knoevenagel/Michael synthesis of 2,2’-arylmethylenebis(3-hydroxy-5,5-dimethyl-2-cyclohexen-1-one) derivatives catalyzed by silica-diphenic acid and their single crystal X-ray analysis

An efficient and eco-friendly procedure has been developed for the synthesis of various 2,2’-arylmethylenebis(3-hydroxy-5,5-dimethyl-2-cyclohexene-1-one) derivatives which were isolated and characterized by melting point, IR, 1H-NMR, 13/s

Simple and cost effective acid catalysts for efficient synthesis of 9-aryl-1,8-dioxooctahydroxanthene

CaCl2 (20 mol %) dispersion in DMSO or aq HBr (10 mol %) is developed as an efficient and cost effective acid catalyst for the simple one-pot synthesis of 9-aryl-1,8-dioxooctahydroxanthene derivatives. Reaction of aromatic aldehyde (1 equiv) an

Improved synthesis of 2,2′-arylmethylene bis(3-hydroxy-5,5-dimethyl- 2-cyclohexene-1-one) derivatives catalyzed by urea under ultrasound

Synthesis of 2,2′-arylmethylene bis(3-hydroxy-5,5-dimethyl-2- cyclohexene-1-one) derivatives catalyzed by urea via the condensation of aromatic aldehydes and 5,5-dimethyl-1,3-cyclohexanedione was carried out in 80-98% yields at 50 °C in aqueous media unde

Reaction of aldehydes and 5,5-dimethyl-1,3-cyclohexanedione in the presence of surfactants in water

An efficient and convenient approach to the synthesis of the two different products from aldehydes and 5,5-dimethyl-1,3-cyclohexanedione using two kinds of surfactant catalysts sodium dodecyl sulfate (SDS) and dodecanesulfonic acid (DSA) (10 mol %) is des

Bakers' yeast catalyzed synthesis of polyhydroquinoline derivatives via an unsymmetrical Hantzsch reaction

Bakers' yeast efficiently catalyzes the unsymmetrical Hantzsch reaction through a four-component coupling of aldehydes, β-ketoesters, dimedone and ammonium acetate to form polyhydroquinoline derivatives in good to excellent yields.

Reaction of imines with 5,5-dimethyl-1,3-cyclohexandione

The reaction of imines 1 with 5,5-dimethyl-1,3-cyclohexandione 2 in methanol was investigated. When the reaction was carried out without a catalytic amount of molecular iodine, ring-opening derivatives of xanthenediones 3 were obtained in high yields. On