ChemInform Abstract: 2, 2‐Dimethyl‐4‐(4‐methoxy‐phenoxy)butanoate and 2, 2‐Dimethyl‐4‐azido Butanoate: Two New Pivaloate‐Ester‐Like Protecting Groups. Issue 32 (18th July 2013) - Castelli, Riccardo; Overkleeft, Herman S.; van der Marel, Gijsbert A.; Codee, Jeroen D. C.