127766-76-1

Upstream product

• 7463-51-6 4-bromo-3,5-dimethylphenol 
• 108-24-7 acetic anhydride 

Downstream Products

• 173381-68-5 3-(2'-bromo-5'-hydroxy-3'-methylphenyl)propanoic acid 
• 173381-65-2 2-bromo-5-hydroxy-3-methylbenzyl alcohol 
• 173381-66-3 2-bromo-5-hydroxy-3-methylbenzaldehyde 
• 68293-32-3 7-hydroxy-5-methyl-2,3-dihydro-1H-inden-1-one 
• 173381-64-1 5-acetoxy-2-bromo-3-methylbenzyl bromide 

Relevant academic research and scientific papers

Economical and Readily Accessible Preparation of o,o-Disubstituted Arylboronates through Palladium-Catalyzed Borylation of Haloarenes

Miyaura borylation, that is, palladium-catalyzed cross-coupling between bromoarenes and diboron, offers a versatile method for preparing arylboronates; however, a costly and inaccessible catalyst has been required for synthesizing highly congested arylboronates with the method. Here the Pd(OAc)2–tri(4-methoxyphenyl)phosphine catalyst was found to work as an efficient catalyst for the sterically demanding borylation. A broad range of o,o-disubstituted bromoarenes were converted into the corresponding arylboronates in high yields by using the palladium catalyst with Cs2CO3 in EtOAc at 80 °C.

FUSED CYCLIC COMPOUNDS

The present invention provides a compound represented by the formula (I): wherein each symbol is as defined in the description, or a salt thereof. The compound or a salt thereof or a prodrug thereof has a GPR40 receptor function modulating action and is useful as an insulin secretagogue or an agent for the prophylaxis or treatment of diabetes and the like.