18648-70-9

Basic information

• Product Name: Benzene, 1-(2,2-diphenylethenyl)-4-nitro-
• CAS NO: 18648-70-9
• Molecular Formula: C20H15NO2
• Molecular Weight: 301.345
• Mol File: 18648-70-9.mol
• Article Data: 14

Chemical Properties

• CAS DataBase Reference: Benzene, 1-(2,2-diphenylethenyl)-4-nitro-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-(2,2-diphenylethenyl)-4-nitro-(18648-70-9)
• EPA Substance Registry System: Benzene, 1-(2,2-diphenylethenyl)-4-nitro-(18648-70-9)

Safety Data

• Hazardous Substances Data: 18648-70-9(Hazardous Substances Data)

Upstream product

• 606-84-8 3,3-diphenylacrylic acid 
• 7732-18-5 water 
• 127-09-3 sodium acetate 
• 100-01-6 4-nitro-aniline 
• 67-64-1 acetone 
• 530-48-3 1,1-Diphenylethylene 
• 56075-39-9 1-(methylsulfonyl)-2-(4-nitrophenyl)diazene 
• 619-73-8 4-nitrobenzyl chloride 
• 70207-45-3 (4-nitrobenzyl)phosphoric acid diethyl ester 
• 4545-20-4 benzophenone tosylhydrazone 
• 555-16-8 4-nitrobenzaldehdye 
• 17507-57-2 (diphenylphosphinyl)phenyldiazomethane 
• 100-00-5 4-chlorobenzonitrile 
• 1942-30-9 4-(phenylethynyl)nitrobenzene 

Downstream Products

• 1039623-33-0 (3S)-2,2-diphenyl-3-(p-nitrophenyl)oxirane 
• 94623-24-2 4-(2,2-diphenyl-vinyl)-aniline 
• 22072-04-4 1,1-Diphenyl-2--2-nitro-aethylen 
• 100151-42-6 1-bromo-1-(4-nitro-phenyl)-2,2-diphenyl-ethene 

Relevant articles and documents

Sunlight-Driven Synthesis of Triarylethylenes (TAEs) via Metal-Free Mizoroki–Heck-Type Coupling

A protocol for the preparation of substituted triarylethylenes (TAEs) was developed by using arylazo sulfones as substrates in the presence of 1,1-diarylethylenes. The process took place efficiently in the absence of any (photo)catalyst upon exposure of the reaction mixture to (simulated) sunlight.

Immobilized Pd on Eggshell Membrane: A powerful and recyclable catalyst for Suzuki and Heck cross-coupling reactions in water

A stable heterogeneous palladium catalysts, the waste eggshell membrane (ESM) anchored Pd complex, was synthesized by a simple and green technique. The catalyst obtained can display an outstanding catalytic activity for Suzuki and Heck coupling reactions in water media. The reactions of various aryl halides with aryl boronic acids and terminal alkenes provided the corresponding products in moderate to excellent yields. More importantly, this novel and efficient catalyst with high stability can be easily reused for at least twelve times with no decrease of the catalytic activity, performing an endurable and wide tolerance of the substrates. Facile synthesis, high catalytic activity, and recyclability make these catalysts interesting for further studies.

Microwave-assisted periselective annulation of triarylphosphenes with aldehydes and ketones

The reaction of diazo(aryl)methyl(diaryl)phosphine oxides with aldehydes and ketones generates benzo-δ-phosphinolactones in low to good yields with 1,1-diarylalk-1-enes as byproducts under microwave irradiation. Diazo(aryl)methyl(diaryl)phosphine oxides first undergo a Wolff rearrangement to form diaryl(aryl)phosphenes, which further react with aldehydes and ketones to afford benzo-δ-phosphinolactones and β-phosphinolactones. The latter are unstable under heating and fragment into the corresponding 1,1-diarylalk-1-enes and arylphosphine dioxides under reaction conditions. The arylphosphine dioxides become arylphosphonic acids during workup. The periselectivity in the annulation shows that the reaction of diaryl(aryl)phosphenes with most aldehydes and ketones favors phosphene phenyl participation in (4 + 2) annulation(2 + 2) annulation. This journal is