153903-86-7

Upstream product

• 96-22-0 pentan-3-one 
• 134986-93-9 2,4-Dimethyl-1,5-diphenylpentan-1,3,5-trion 
• 93-58-3 benzoic acid methyl ester 
• 153903-85-6 3,5-bis(bromomethyl)-2,6-diphenyl-4H-pyran-4-one 
• 13618-19-4 1-phenyl-2-methyl-1,3-pentanedione 
• 109614-24-6 2,6-diphenyl-3,5-dimethyl-4H-pyran-4-one 

Downstream Products

• 153903-87-8 7,9,16,18-Tetraphenyl-2,11-dithia<3.3>(3,5)-pyranophan-5,14-dion;2,2,11,11-tetroxid 

Relevant academic research and scientific papers

Synthesis and Conformational Analysis of Pyranophanes and Pyrylophanium Compounds with Intraannular Substituents

The synthesis of dithiapyranophanone 6 and 11 is accomplished by use of the two-components-dilution -principle.Pyrolysis of their bis(sulfones) 7 and 12 gives the pyranophanones 8,19 and 13.Under preservation of conformation the intraannular car