Clicking together Alkynes and Tetracyanoethylene

• Published in: Chemphyschem Vol. 24; no. 15; pp. e202300236 - n/a
• Main Author: Nielsen, Mogens Brøndsted
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.08.2023
• Subjects: Alkenes; Alkynes; Chemical synthesis; Chromophores; click chemistry; Complex formation; Cycloaddition; Kinetics; retro-electrocyclization; Zwitterions; chromophores; click chemistry; cycloaddition; retro-electrocyclization; alkynes

The [2+2] cycloaddition – retro‐electrocyclization (CA‐RE) reaction allows ready synthesis of redox‐active donor‐acceptor chromophores from an electron‐rich alkyne and electron‐poor olefins like tetracyanoethylene (TCNE). The detailed mechanism of the reaction has been subject of both computational...