313547-14-7

Upstream product

• 394-28-5 2-Bromo-5-fluorobenzoic acid 
• 6638-79-5 N,O-dimethylhydroxylamine*hydrochloride 

Downstream Products

• 1006-33-3 1-(2′-bromo-5′-fluorophenyl)ethan-1-one 

Relevant academic research and scientific papers

Base-catalyzed synthesis of substituted indazoles under mild, transition-metal-free conditions

Back to basics: A transition-metal-free method developed for the synthesis of indazoles involves an inexpensive catalytic system composed of a diamine and K2CO3. Various (Z)-2-bromoacetophenone tosylhydrazones were converted into indazoles at room temperature in excellent yields (see example; Ts=p-toluenesulfonyl). The yield was improved by photoisomerization with UV light when E/Z isomeric mixtures of the starting material were used. Copyright

Processes for preparing 6-alkyl-5-arylsulfonyl-dihydrophenanthridines

Synthetic methods are provided for production of compounds of the formula: where R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13 and R14 are as defined in the specification.