Compounds having one of the following formulae:wherein R1 and R2 are alkyl or aryl and R1 and R2 may be the same or different,wherein R1 is alkyl o aryl, orwherein alkyl is a liner or branched, saturated or unsaturated alkyl having C1-20 and wherein aryl is an aromatic ring having C1-15. Also methods of using the compounds, including method of inhibiting and ethylene response in a plant.
