Mild and Chemoselective Triethylsilane-Mediated Debenzylation for Phosphate Synthesis

Org Lett. 2025 Jan 10;27(1):246-251. doi: 10.1021/acs.orglett.4c04258. Epub 2024 Dec 24.

Abstract

The synthetic utility of tetrabenzyl pyrophosphate for achieving chemoselective phosphorylation of phenols, as well as primary, secondary, and tertiary alcohols, is reported here. Additionally, we introduce a rapid, mild, and chemoselective debenzylation procedure, enabling access to phosphates in the presence of redox sensitive groups. Finally, stoichiometrically controlled monodebenzylation provides a versatile platform for late-stage divergent synthesis of phosphodiester and phosphoramidate chemical libraries.