74809-53-3

Upstream product

• 74809-42-0 [(6-bromo-1,3-benzodioxole-5-yl)methyl]triphenylphosphonium bromide 
• 1122-91-4 4-bromo-benzaldehyde 
• 6642-34-8 6-bromopiperonyl alcohol 
• 5434-47-9 5-bromo-6-bromomethylbenzo[1,3]dioxole 

Relevant academic research and scientific papers

Sythesis of 2,2'-Diacyl-1,1'-biaryls. Regiocontrolled Protection of Ketones in Unsymmetrically Substituted 9,10-Phenanthrenequinones

A regiocontrolled monoketalization of unsymmetrically substituted phenanthrenequinones by use of 2,2-dimethyl-1,3-propanediol as the ketalizing reagent has been effected with the help of bromo substitution in one of the aromatic rings at the C-1 or C-8 po