79616-15-2

Upstream product

• 90-96-0 bis(p-methoxyphenyl)methanone 
• 4356-69-8 1,1-bis-(4-methoxyphenyl)ethylene 
• 2132-64-1 2,2-bis-(p-methoxyphenyl)-1-bromoethylene 
• 2132-68-5 1,1-bis(4-methoxyphenyl)-2,2-dibromoethylene 
• 13139-86-1 4-methoxyphenyl magnesium bromide 
• 100-66-3 methoxybenzene 
• 578-57-4 2-bromoanisole 
• 854247-83-9 1,1-dibromo-2,2-bis-(3-bromo-4-methoxy-phenyl)-ethene 
• 88837-72-3 2,2-bis(4-methoxyphenyl)-1,1,1-tribromoethane 
• 72-43-5 Methoxychlor 
• 2132-70-9 1,1-dichloro-2,2-bis(p-methoxyphenyl)ethylene 

Downstream Products

• 5423-21-2 4,4'-dihydroxy-3,3'-dibromobenzophenone 
• 36324-64-8 2-Bromo-4,6-dinitroanisole 

Relevant academic research and scientific papers

Synthesis and photochromic properties of new naphthopyrans

[Figure not available: see fulltext.] Two novel isomeric naphthopyrans substituted with phenyl (13-butyl-6,7-dimethoxy-3,3-bis(6-methoxybiphenyl-3-yl)-3,13-dihydrobenzo[h]indeno[2,1-f]chromen-13-ol) and 4-(naphthalen-1-yl)phenyl (13-butyl-6,7-dimethoxy-3,3-bis[6-methoxy-4'-(naphthalenyl)-biphenyl-3-yl]-3,13-dihydrobenzo[h]indeno[2,1-f]chromen-13-ol) moieties were synthesized. Their photochromism, electrochemical and fluorescent properties were investigated. They displayed faster color fading rate and larger fluorescence quantum yield than 13-butyl-6,7-dimethoxy-3,3-bis(4-methoxyphenyl)-3,13-dihydrobenzo[h]indeno[2,1-f]chromen-13-ol. Moreover, they showed excellent photochromic and fluorescent properties both in solution and in polymethylmethacrylate film. In addition, cyclic voltammetry tests showed that the aromatic substituents had a significant effect on the electrochemical behavior of the naphthopyran derivatives.