ChemInform Abstract: Synthesis of 2,3,5‐Trihydroxyphenylprop‐1‐ene and Its 4‐Chloro, 6‐Chloro, and 4,6‐Dichloro Derivatives.

Abstract

The starting compounds (I) ‐ prepared from vanillin or 3,5‐dimethoxytoluene ‐ are converted to the phosphonamides (III), which undergo deprotection, cycloelimination and acetylation to give the acetates (Va) and (Vb).