Metal‐Free Photocatalytic Synthesis of  exo ‐Iodomethylene 2‐Oxazolidinones: An Alternative Strategy for CO 2  Valorization with Solar Energy | Zendy

He Xing | Zendy; Yao XiangYang | Zendy; Chen KaiHong | Zendy; He LiangNian | Zendy

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Metal‐Free Photocatalytic Synthesis of exo ‐Iodomethylene 2‐Oxazolidinones: An Alternative Strategy for CO 2 Valorization with Solar Energy

Author(s) -

He Xing,

Yao XiangYang,

Chen KaiHong,

He LiangNian

Publication year - 2019

Publication title -

chemsuschem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.412

H-Index - 157

eISSN - 1864-564X

pISSN - 1864-5631

DOI - 10.1002/cssc.201902417

Subject(s) - photocatalysis , chemistry , combinatorial chemistry , sonogashira coupling , metal , surface modification , photochemistry , nanotechnology , catalysis , organic chemistry , palladium , materials science

A visible‐light‐promoted metal‐free carboxylative cyclization of propargylic amines with CO 2 was shown to offer exo ‐iodomethylene 2‐oxazolidinones. Incorporation of both CO 2 and iodo moieties into these compounds was realized efficiently. The mechanism study revealed that this carboxylative cyclization proceeds through a radical pathway. Notably, the iodine‐functionalized 2‐oxazolidinone as a platform molecule could be easily converted into a wide range of value‐added chemicals through Buchwald–Hartwig, Suzuki, Sonogashira, photocatalytic ene, and photoreduction reactions. As a result, the plentiful downstream transformations remarkably enhance the range of chemicals derived from CO 2 and open a potential avenue for CO 2 functionalization to circumvent energy challenges in this field.

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