A novel Rh(I)-catalyzed approach to synthesizing functionalized (E,Z) dienal compounds has been developed via tandem transformation where a stereoselective hydrogen transfer follows a propargyl Claisen rearrangement. Z-Stereochemistry of the first double bond suggests the involvement of a six-membered cyclic intermediate whereas the E-stereochemistry of the second double bond stems from the subsequent protodemetallation step giving an (E,Z)-dienal. The reaction may be represented by the following sequence. ##STR00001##

An alkoxyvinyl ether is disclosed having the chemical structure R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is an at least partially fluorinated functional group having at least one carbon atom, R.sub.f is an at least partially fluorinated functional group having at least two carbon atoms, and R is a functional group. A method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCFHCFHR.sub.f+KOH/ROH.fwdarw.R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is a perfluoro functional group, R.sub.f is a perfluoro functional group, and R is an alkyl functional group. Another method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCFCHR.sub.f+KOH/ROH.fwdarw.R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is a perfluoro functional group, R.sub.f is a perfluoro functional group, and R is an alkyl functional group.

An alkoxyvinyl ether is disclosed having the chemical structure R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is an at least partially fluorinated functional group having at least one carbon atom, R.sub.f is an at least partially fluorinated functional group having at least two carbon atoms, and R is a functional group. A method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCFHCFHR.sub.f+KOH/ROH.fwdarw.R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is a perfluoro functional group, R.sub.f is a perfluoro functional group, and R is an alkyl functional group. Another method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCFCHR.sub.f+KOH/ROH.fwdarw.R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is a perfluoro functional group, R.sub.f is a perfluoro functional group, and R is an alkyl functional group.

An alkoxyvinyl ether is disclosed having the chemical structure R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is an at least partially fluorinated functional group having at least one carbon atom, R.sub.f is an at least partially fluorinated functional group having at least two carbon atoms, and R is a functional group. A method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCFHCFHR.sub.f+KOH/ROH.fwdarw.R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is a perfluoro functional group, R.sub.f is a perfluoro functional group, and R is an alkyl functional group. Another method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCFCHR.sub.f+KOH/ROH.fwdarw.R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is a perfluoro functional group, R.sub.f is a perfluoro functional group, and R is an alkyl functional group.

An alkoxyvinyl ether is disclosed having the chemical structure R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is an at least partially fluorinated functional group having at least one carbon atom, R.sub.f is an at least partially fluorinated functional group having at least two carbon atoms, and R is a functional group. A method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCFHCFHR.sub.f+KOH/ROH.fwdarw.R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is a perfluoro functional group, R.sub.f is a perfluoro functional group, and R is an alkyl functional group. Another method for preparing an alkoxyvinyl ether is disclosed, comprising R.sub.fCFCHR.sub.f+KOH/ROH.fwdarw.R.sub.fC(OR)CHR.sub.f, wherein R.sub.f is a perfluoro functional group, R.sub.f is a perfluoro functional group, and R is an alkyl functional group.