Stereoselective synthetic approach towards phytotoxic agent Agropyrenol

Abstract

A phytotoxic agent Agropyrenol is produced by Ascochyta agropyrina var. nana, in liquid culture. The synthetic approach has been commenced by using (−)-diethyl-d-tartrate and 2,3-di methyl phenol as building blocks. The key reactions involved are aromatic sulfone coupling under Julia-Kocienski olefination, selective acetonide protection, bromination, detosylation and selective oxidation.