61708-78-9

Basic information

• Product Name: 2,2-diphenyl-2H-phrnanthro[9,10-e]pyran
• Synonyms: 2,2-diphenyl-2H-phrnanthro[9,10-e]pyran
• CAS NO: 61708-78-9
• Molecular Weight: 384.477
• Mol File: 61708-78-9.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 2,2-diphenyl-2H-phrnanthro[9,10-e]pyran(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2-diphenyl-2H-phrnanthro[9,10-e]pyran(61708-78-9)
• EPA Substance Registry System: 2,2-diphenyl-2H-phrnanthro[9,10-e]pyran(61708-78-9)

Safety Data

• Hazardous Substances Data: 61708-78-9(Hazardous Substances Data)

Upstream product

• 484-17-3 9-Phenanthrol 
• 3923-52-2 1,1-diphenyl-2-propyn-1-ol 
• 1210-39-5 3,3-diphenyl-2-propenal 

Relevant articles and documents

Synthesis of 2-acylphenol and flavene derivatives from the ruthenium-catalyzed oxidative c-h acylation of phenols with aldehydes

The cationic ruthenium hydride complex [(C6H6)(PCy3)(CO)RuH]+BF4- has been found to be an effective catalyst for the oxidative C-H coupling reaction of phenols with aldehydes to give 2-acylphenol compounds. The coupling of phenols with α,β-unsaturated aldehydes selectively gives the flavene derivatives. The catalytic method mediates direct oxidative C-H coupling of phenol and aldehyde substrates without using any metal oxidants or forming wasteful byproducts. A cationic ruthenium hydride complex catalyzes the oxidative C-H coupling of phenols with aldehydes to form 2-acylphenol and flavene derivatives.

Synthesis and Photochromic Behaviour of Naphthopyrans, Pyranoquinolines, Pyranoquinazolines and Pyranoquinoxalines

New chromenes annulated with different six-membered azaheterocycles were prepared, i.e., the 3H-pyrano[3,2-f]quinolines 9/10 and 14, the 8H-pyrano[2,3-h]isoquinoline 11, the 8H-pyrano[3,2-f]quinazoline 12, the 8H-pyrano[3,2-f]quinoxaline 13, and the 2H-pyrano[2,3-f]isoquinoline 15. The synthesis was achieved using conveniently substituted α,β-unsaturated aldehydes and organotitanium intermediates arising from azaheterocyclic phenols. Their photochromic behaviour (photocolouration yield, UV/VIS spectrum of photomerocyanines, rate constant of thermal bleaching) were studied besides those of corresponding naphthopyrans. The heterocycle effect and the role of substituents in the pyran moiety were investigated quantitatively through the study of the photochromic properties and the solvent effects. Diaryl-substituted azino-fused chromenes, especially isoquinoline derivatives, exhibit increased colourabilities and bathochromically shifted spectra for photomerocyanines which open up new prospects for photochromic applications.