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Improved Routes for the Preparation of Pentaerythritol Mono‐O‐benzyl Ether

Abstract Two new efficient routes for the synthesis of pentaerythritol monobenzyl ether are described. In one route, the known mono‐O‐benzylidenepentaerythritol (5) is selectively benzylated via its dibutylstannylene acetal and then the benzylidene acetal is hydrolized. In the other route, compound 5 is reduced directly to the monobenzyl ether using EtAlCl2‐Et3SiH.