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Upstream product

• 1445-69-8 2,3-dihydrophthalazine-1,4-dione 
• 64517-67-5 [1,1'-binaphthalene]-3,3',4,4'-tetraone 
• 479-79-8 11H-Benzo[a]fluoren-11-one 
• 50703-54-3 4b,9b-dihydro-indeno[2,1-a]indene-5,10-dione 
• 4281-17-8 2,2'-(ethane-1,2-diyl)bisbenzoic acid 
• 2975-71-5 2-[(3-oxo-1,3-dihydro-2-benzofuran-1-yl)methyl]benzoic acid 
• 5018-87-1 2-(naphthalene-1-carbonyl)-benzoic acid 
• 23667-32-5 trans-dithiobiphthalide 
• 7697-37-2 nitric acid 
• 2051-10-7 5,6-chrysenedione 
• 2498-66-0 benz[a]anthracene-7,12-dione 
• 7732-18-5 water 
• 7530-35-0 3H,3'H-1,1'-biindene 
• 111936-75-5 3.4.3'.4'-Tetrahydroxy-[1.1']binaphthyl 

Downstream Products

• 4281-17-8 2,2'-(ethane-1,2-diyl)bisbenzoic acid 
• 101422-35-9 1,1'-dichloro-1H,1'H-[1,1']biisobenzofuranyl-3,3'-dione 
• 88-99-3 benzene-1,2-dicarboxylic acid 
• 60040-82-6 dimethyl 2,2'-(1,2-ethanediyl)bisbenzoate 
• 121410-38-6 diethyl 2,2'-ethylenedibenzoate 
• 573-32-0 benzophenone-2,2'-dicarboxylic acid 
• 41634-38-2 dimethyl diphenylmethane-2,2'-dicarboxylate 
• 38487-11-5 diphenylmethane-2,2'-dicarboxylic acid 
• 38059-08-4 bis<(2-hydroxymethyl)phenyl>methane 
• 109407-76-3 (2-carboxyphenyl)phtalide 
• 85-44-9 phthalic anhydride 

Relevant academic research and scientific papers

STUDIES ON THE SYNTHESIS OF HETEROCYCLIC COMPOUNDS. XVII. THE PREPARATION OF MACROCYCLIC POLYESTER LIGANDS CONTAINING THE 2,2'-BIS(HYDROXYMETHYL)DIPHENYLMETHANE SUBCYCLIC UNIT

Novel macrocyclic tetraester ligands containing the 2,2'-bid(hydroxymethyl)diphenylmethane subcyclic unit have been prepared using an intermediate dioxastannocin with diacyl chlorides.The products were characterized by analitycal and spectroscopic (IR and NMR) data.The MS spectra of these ligands have been studied and the fragmentation patterns and structures of the main ions are described.

Preparation and reactions of 4b-acetoxy-4b,9b-dihydroindenoindene-5,10-dione

4b-Acetoxy-4b,9b-dihydroindenoindene-5,10-dione prepared by treating 4b,9b-dihydroindenoindene-5,10-dione with lead tetraacetate was hydrolyzed to the alcohol, 4b-hydroxy-4b,9b-dihydroindenoindene-5,10-dione with hydrochloric acid and converted to 4b-methoxy-4b,9b-dihydroindenoindene-5,10-dione with sodium hydroxide in methanol.The alcohol was stable to base and could not be converted to dibenzocyclooctadiene-5,6,11-trione.Attempts to form the epoxydiketone from the acetate with sodium hydroxide and hydrogen peroxide gave benzil dicarboxylic acid, 11-ketoisocoumarin and 4b-methoxy-4b,9b-dihydro indenoindene-5,10-dione.