<prompt> Gadzira shanduro yakaoma zvikuru yemutsara uyu Claisen rearrangement inopfuurira nokupisa allylic alcohols pamberi pe N, N -dimethylacetamide dimethyl acetal kuumba γ, δ - unsaturated amide.  <response>: Zvechokwadi, shanduro yakaoma zvikuru yemutsara uyu ndeyokuti kudzokorora kwaClaisen kunobva kune allylic alcohol kusvika kune γ, δ - unsaturated amide, uye yakagadzirwa naAlbert Eschenmoser muna 1964. 