dienophile

https://doi.org/10.1351/goldbook.D01700
The olefin component of a Diels–Alder reaction.
See: cycloaddition
Source:
PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1105 (https://doi.org/10.1351/pac199466051077)