81118-40-3

Upstream product

• 81118-38-9 2-<(2-Butyl-2,3-dihydro-6-nitro-1,3-dioxo-1H-isoindol-4-yl)thio>benzoic Acid 
• 108-98-5 thiophenol 
• 81118-42-5 N-Butyl-3,5-dinitrophthalimide 
• 52806-20-9 3,5-Dinitrophthalic anhydride 

Downstream Products

• 92461-54-6 N-Butyl-10-oxo-1-(phenylthio)-10H-dibenzothiopyran-3,4-dicarboximide 

Relevant academic research and scientific papers

Preparation of Novel 9-Oxo-9H-thioxanthene- and 9-Oxo-9H-xanthenedicarboximides and -dicarboxylates

By aromatic nucleophilic substitution followed by intramolecular acylation, 9-oxo-9H-thioxanthene- and 9-oxo-9H-xanthene-dicarboximides were prepared from nitro- or chlorophthalimides and the dianions of thiosalicylic and salicylic acids (Scheme).The 9-ox

Novel xanthones and thioxanthones

Novel xanthones and thioxanthones of the formula I STR1 in which A, X, Y, Z, E and E' are as defined in patent claim 1, are described. A is preferably --S-- and E and E' are preferably bonded in the ortho-position relative to one another. The compounds (I) are suitable, for example, as sensitizers for photocrosslinkable polymers or photocurable compositions, or for use in mixtures with polymers with H donor groups for image formation, in particular electrically conductive coatings and patterns, by means of electroless deposition of metals.