IN305704: A process for the preparation of pillar[5]quinone

The invention relates to a process for the preparation of pillar[5]quinone and further relates to an easy-to-operate and chromatography-free process for the preparation of crystalline pillar [5] quinone by the oxoneliodobenzene-mediated oxidative de-aromatization of readily available 1,4-dimethoxypillar[5] arenes in good yields.