71838-17-0

Upstream product

• 71838-16-9 3-bromo-4-iodotoluene 
• 2303-76-6 sodium diethyl phosphite 
• 583-68-6 2-bromo-p-toluidine 
• 1035351-18-8 tetraethyl 4-methylcyclohexa-1,4-diene-1,2-diphosphonate 

Downstream Products

• 1035351-23-5 tetraethyl 4-[(trimethylsilyl)methyl]benzene-1,2-diphosphonate 
• 1035351-27-9 tetraethyl 4-(3,3,3-trifluoro-2,2-dihydroxypropyl)benzene-1,2-diphosphonate 
• 1035351-20-2 tetraethyl (E)-4-(4-fluorostyryl)benzene-1,2-diphosphonate 

Relevant academic research and scientific papers

New α-substituted alkylbenzene- and dialkylbenzene-1,2-diphosphonates: side-chain metalation of tetraethyl 4-methyl- and 4,5-dimethylbenzene-1,2-diphosphonates

Carbocyclic 1,2-diphosphonates (1a, 1b) are prepared by the Diels-Alder reaction of classical donor alka-1,3-dienes (isoprene and 2,3-dimethyl-1,3-butadiene) with tetraethyl acetylene bisphosphonate. Their aromatization by the KMnO4-Al2/s