20725-25-1

Basic information

• Product Name: cis-4,4'-Dichlor-chalkon
• CAS NO: 20725-25-1
• Molecular Weight: 277.15
• Mol File: 20725-25-1.mol
• Article Data: 123

Chemical Properties

• CAS DataBase Reference: cis-4,4'-Dichlor-chalkon(CAS DataBase Reference)
• NIST Chemistry Reference: cis-4,4'-Dichlor-chalkon(20725-25-1)
• EPA Substance Registry System: cis-4,4'-Dichlor-chalkon(20725-25-1)

Safety Data

• Hazardous Substances Data: 20725-25-1(Hazardous Substances Data)

Upstream product

• 104-88-1 4-chlorobenzaldehyde 
• 99-91-2 para-chloroacetophenone 
• 7647-01-0 hydrogenchloride 
• 7664-93-9 sulfuric acid 
• 64-19-7 acetic acid 
• 86980-61-2 N-[1,3-bis-(4-chloro-phenyl)-allyliden]-p-anisidine 
• 13677-54-8 1,3-bis(4-chlorophenyl)prop-2-en-1-ol 
• 166823-93-4 (2E)-1,3-bis(4-chlorophenyl)prop-2-en-1-ol 
• 1513-29-7 (p-chlorophenyl)methanesulfonyl fluoride 
• 536-38-9 4-chlorobenzoylmethyl bromide 
• 19672-59-4 (E)-1,3-di(4-chlorophenyl)-2-propen-1-one 
• 67-64-1 acetone 
• 3282-33-5 1-(4-chlorophenyl)-2-diazoethanone 
• 6655-32-9 N'-(4-chlorobenzylidene)-2-nitrobenzenesulfonohydrazide 

Downstream Products

• 848089-63-4 diethyl 2-(1,3-bis(4-chlorophenyl)-3-oxopropyl)malonate 
• 107553-44-6 2,4-Bis-(4-chloro-phenyl)-benzo[4,5]imidazo[1,2-a]pyrimidine 
• 20615-50-3 1.3-Bis-(4-chlorphenyl)-2-chlor-3-hydroxy-propanon-⁽¹⁾ 
• 20615-48-9 1.3.4.6-Tetrakis-<4-chlor-phenyl>-hexandion-(1.6) 
• 20725-23-9 (2RS,3RS)-2,3-dichloro-1,3-bis-(4-chloro-phenyl)-propan-1-one 
• 861587-45-3 α.γ-dichloro-α.γ-bis-(4-chloro-phenyl)-α-propylene 
• 881376-44-9 2-heptyl-4,6-bis(4-chlorophenyl)pyrimidine 
• 314280-27-8 2-undecyl-4,6-bis(4-chlorophenyl)pyrimidine 
• 881376-43-8 2-propyl-4,6-bis(4-chlorophenyl)pyrimidine 
• 97009-36-4 1,3-Bis(4-chlorophenyl)-1-propanone 
• 29425-79-4 (4-chlorophenyl)(3-(4-chlorophenyl)oxiran-2-yl)methanone 

Relevant articles and documents

Synthesis of lithium/cesium-Zagronas from zagrosian natural asphalt and study of their activity as novel, green, heterogeneous and homogeneous nanocatalysts in the Claisen–Schmidt and Knoevenagel condensations

A novel, heterogeneous and homogeneous basic nanocatalysts were synthesized by grafting of lithium and cesium on zagrosian natural asphalt sulfonate (Li/Cs-Zagronas). The activity of these catalysts was examined in the Claisen–Schmidt and Knoevenagel condensations under mild reaction conditions. Li/Cs-Zagronas were characterized by FT-IR spectroscopy, scanning electron microscopy, X-ray diffraction, energy-dispersive spectroscopy, inductively coupled plasma and thermogravimetric analysis techniques. These nanocatalysts were removed by simple filtration and reused several times without any deterioration of activity.

Activated charcoal-mediated synthesis of chalcones catalyzed by NaOH in water

A variety of chalcones were synthesized in good yields by the activated charcoal-mediated aldol reactions between benzaldehydes and acetophenones catalyzed by NaOH in water. 2,6-Bis((E)-benzylidene)cyclohexan-1-ones were prepared by the aldol reactions between benzaldehydes and cyclohexanone. Activated charcoal could be recycled five times without the significant decrease of yields.

Palladium-Catalyzed Allyl-Allyl Reductive Coupling of Allylamines or Allylic Alcohols with H2as Sole Reductant

Catalytic carbon-carbon bond formation building on reductive coupling is a powerful method for the preparation of organic compounds. The identification of environmentally benign reductants is key for establishing an efficient reductive coupling reaction. Herein an efficient strategy enabling H2 as the sole reductant for the palladium-catalyzed allyl-allyl reductive coupling reaction is described. A wide range of allylamines and allylic alcohols as well as allylic ethers proceed smoothly to deliver the C-C coupling products under 1 atm of H2. Kinetic studies suggested that the dinuclear palladium species was involved in the catalytic cycle.