5509-37-5

Upstream product

• 67-56-1 methanol 
• 19218-88-3 N-phenyl-4-chloroanthranilic acid 
• 5900-58-3 2-amino-4-chloro-benzoic acid methyl ester 
• 108-86-1 bromobenzene 

Downstream Products

• 91855-60-6 4-Chlor-N-chloracetyl-phenylanthranilsaeuremethylester 
• 91855-64-0 8-Chlor-1-phenyl-4-n-propyl-3,4-dihydro-1H-1,4-benzodiazepin-2,5-dion 
• 23868-06-6 7-chloro-2-methoxy-1-phenyl-2-thioxo-1,2-dihydro-2λ⁵-benzo[d][1,3,2]thiazaphosphinin-4-one 
• 23857-34-3 7-chloro-2-methoxy-1-phenyl-2-thioxo-1,2-dihydro-2λ⁵-benzo[d][1,3,2]thiazaphosphinine-4-thione 

Relevant academic research and scientific papers

An advantageous synthesis of new indazolone and pyrazolone derivatives

The synthesis of new indazolone and pyrazolone derivatives starting from methyl anthranilate type substrates is presented. This general approach constitutes a novel and advantageous alternative for the synthesis of the target heterocycles, which implies the use of the environmentally friendly oxidizer PIFA. The synthetic design includes the oxidation of N-arylamides by the hypervalent iodine reagent to the corresponding N-acylnitrenium ions, which can be intramolecularly trapped by an amine moiety to furnish the title compounds by formation of a new N-N single bond.