Abstract: Formyloxyacetoxyphenylmethane, symmetric 1, 1-diacylals and mixed 1-pivaloxy-1-acyloxy-1-phenylmethanes have been used as moisture stable O -formylating and O -acylating reagents for primary and secondary alcohols, allylic alcohols and phenols under solvent/catalyst free conditions to afford their corresponding esters in good yield. Graphical abstract: