116070-79-2

Upstream product

• 63621-75-0 2-(4-Bromo-phenyl)-4-[(4-bromo-phenyl)-hydrazono]-5-((1S,2S)-1,2,3-trihydroxy-propyl)-2,4-dihydro-pyrazol-3-one 
• 108-24-7 acetic anhydride 
• 107451-59-2 1-p-bromophenyl-3-(1,2-O-isopropylidene-L-threo-glycerol-1-yl)pyrazole-4,5-dione 4-p-bromophenylhydrazone 

Relevant academic research and scientific papers

HETEROCYCLES FROM CARBOHYDRATE PRECURSORS. PART 40. KINETIC AND THERMODINAMIC PRODUCTS OF KETALATION OF 1-C-SUBSTITUTED L-THREO-GLYCEROL: A REGIOSELECTIVE FORMATION OF 1,3-DIOXOLANES

The mode of ketalation of some L-threo-glycerols has been studied.The kinetic product has an α-terminal (dioxolane) ring.The formation of β (dioxane) ring was also detected.The thermodynamic product has an α-threo-(dioxolane) ring.The regioselectivity of