1259944-64-3

Upstream product

• 102164-16-9 1,1-di[4,4'-bis(dimethylamino)phenyl]-2-propyn-1-ol 
• 538343-03-2 ethyl 4-hydroxy-6-methoxynaphthalene-2-carboxylate 

Downstream Products

• 1259944-69-8 2,2-bis(4-dimethylaminophenyl)-9-methoxy-5-[1,1-bis(4-methoxyphenyl)-1-hydroxymethyl]-2H-naphtho[1,2-b]pyran 
• 1259944-74-5 2-(dimethylamino)-5-[4-(dimethylamino)phenyl]-10-methoxy-6,6-bis(4-methoxyphenyl)benzo[5,6]pentaleno[1,2-b]naphthalen-12(6H)-one 

Relevant academic research and scientific papers

The intramolecular capture of thermally generated merocyanine dyes derived from naphthopyrans: Photochromism of 5-(diarylhydroxymethyl)-2H-naphtho[1,2-b] pyrans

A series of 2H-naphtho[1,2-b]pyrans bearing a diarylmethanol unit at C-5 have been synthesised by the addition of an excess of an aryllithium reagent to alkyl 2H-naphtho[1,2-b]pyran-5-carboxylate precursors. These naphthopyrans show photochromism when exp

Benzopentalenonaphthalenones from the intramolecular capture of a merocyanine derived from a naphthopyran

Novel, highly coloured benzopentalenonaphthalenones result from a cascade process initiated by the thermally-induced ring-opening of diarylmethanol substituted 2H-naphtho[1,2-b]pyrans in the presence of acid.