Selenium-catalyzed allylic C-H phosphoramidation of alkenes

Area of Science:

• Organic Chemistry
• Catalysis
• Chemical Biology

Background:

• Allylic phosphoramidates are valuable synthetic intermediates.
• Direct functionalization of C-H bonds offers efficient synthetic routes.
• Developing catalytic methods for C-H derivatization is a key area in organic synthesis.

Purpose of the Study:

• To develop a novel selenium-catalyzed method for the synthesis of allylic phosphoramidates.
• To demonstrate the broad substrate scope and functional group tolerance of the developed method.
• To apply the method for late-stage modification of complex natural products and create chemical biology tools.

Main Methods:

• Selenium-catalyzed allylic C-H derivatization of alkenes.
• Reaction optimization to achieve mild conditions and high functional group tolerance.
• Application of the protocol to caryophyllene for photoaffinity probe synthesis.

Main Results:

• Successful synthesis of allylic phosphoramidates from various alkenes.
• Demonstration of broad substrate scope and tolerance of diverse functional groups.
• Generation of a caryophyllene-derived photoaffinity probe.
• In situ proteomic target labeling in live HeLa cells using the synthesized probe.

Conclusions:

• The developed selenium-catalyzed C-H derivatization is an efficient and versatile method for synthesizing allylic phosphoramidates.
• The protocol enables late-stage functionalization of complex molecules.
• The synthesized photoaffinity probe is effective for proteomic studies in live cells.