Silver-mediated selective oxidative cross-coupling between C-H/P-H: a strategy to construct alkynyl(diaryl)phosphine
Tao Wang1, Songtao Chen, Ailong Shao
1National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang 330022, Jiangxi P. R. China.
A new method directly couples alkynes with phosphine oxides. This efficiently creates alkynyl phosphine oxides using silver salts as promoters.
Area of Science:
- Organic Chemistry
- Organophosphorus Chemistry
Background:
- Secondary phosphine oxides are versatile building blocks.
- Direct functionalization of phosphine oxides remains challenging.
Purpose of the Study:
- To develop a novel direct oxidative cross-coupling method.
- To synthesize alkynyl di(phenyl) phosphine oxides efficiently.
Main Methods:
- Direct oxidative cross-coupling reaction.
- Utilizing terminal alkynes and secondary phosphine oxides.
- Employing silver salts as key promoters.
Main Results:
- Successful synthesis of alkynyl di(phenyl) phosphine oxides.
- High efficiency in constructing the target compounds.
- Demonstrated utility of silver salts in promoting the reaction.
Conclusions:
- A novel and efficient method for synthesizing alkynyl phosphine oxides was established.
- This oxidative cross-coupling provides a valuable route from basic materials.
- Silver-promoted reactions offer a promising strategy in organophosphorus chemistry.
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