Microwave-assisted synthesis of diaryl ethers without catalyst

Organic Letters

Volumn 5, Issue 12, 2003, Pages 2169-2171

  Li, Feng ^a   Wang, Quanrui ^a   Ding, Zongbiao ^a   Tao, Fenggang ^a  

^a FUDAN UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

ETHER DERIVATIVE; PHENOL DERIVATIVE;

ADDITION REACTION; ARTICLE; CHEMICAL REACTION; MICROWAVE IRRADIATION; MOLECULAR INTERACTION; REACTION ANALYSIS;

HYDROCARBONS, AROMATIC; MICROWAVES; PHENOLS; PHENYL ETHERS;

EID: 0141630561     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol0346436     Document Type: Article

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27. Typical procedure. The appropriate aryl halide (10 mmol), the phenol (10-12 mmol), and anhydrous potassium carbonate (20 mmol) were sequentially added to 50 mL of DMSO (A.R. grade without any previous workup). The reaction was found not to be sensitive to air and moisture, hence there was no need for inert atmosphere. With use of a microwave power of 300 W, the reaction mixture was ramped from room temperature to the boiling point of DMSO over 30-40 s, and then held at this refluxing temperature for another 5-10 min until complete consumption of starting material (GC monitoring). After being cooled to room temperature, the resulting mixture was mixed with an ample amount of ice water to precipitate the products and the solution was stirred for 30 min. Normal workup afforded the pure diaryl ether.
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