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Synthesis of symmetrical diarylalkyne from palladium-catalyzed decarboxylative couplings of propiolic acid and aryl bromides under water

✍ Scribed by Kyungho Park; Goun Bae; Ahbyeol Park; Yong Kim; Jaehoon Choe; Kwang Ho Song; Sunwoo Lee

Publisher: Elsevier Science
Year: 2011
Tongue: French
Weight: 775 KB
Volume: 52
Category: Article
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2010.11.110

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✦ Synopsis

Symmetric diarylalkynes were obtained from the decarboxylative coupling reactions of aryl bromides and propiolic acid in water solvent condition. In the presence of phase transfer surfactant C 18 H 37 N(CH 3 ) 3 Cl, the catalytic system of both Pd(PPh 3 ) 2 Cl 2 /dppb and Pd(TPPMS) 2 Cl 2 /TPPMS afforded the desired coupled products in good yields.

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