Allylcarboxy and Allyloxycarbonyl groups can be removed without affect
ing dimethylallylcarboxy and cinnamylcarboxy groups in the same molecu
le. using Pd(0) water soluble catalyst prepared in situ, with diethyla
mine as allyl scavenger. Homogeneous or biphasic media are suitable: t
he yields of deprotection are quantitative.