• Reagent for the protection of carboxylic acids, alcohols, phenols and thiols as their 9-anthrylmethyl derivatives, which are stable to mild acid or base, but specifically cleaved by NaSMe: J. Am. Chem. Soc., 96, 590 (1974). For use in N-protection, see: Aust. J. Chem., 18, 1699 (1965).