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Volumn , Issue 20, 2008, Pages 3221-3225

Ultrasound-assisted synthesis of symmetrical biaryls by palladium-catalyzed homocoupling of aryl n-butyl tellurides

Author keywords

Aryl n butyl tellurides; Homocoupling reaction; Symmetrical biaryls

Indexed keywords


EID: 58149331357     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-0028-1087244     Document Type: Article
Times cited : (12)

References (55)
  • 8
    • 0001768006 scopus 로고    scopus 로고
    • Angew. Chem. 1999, 111, 2230.
    • (1999) Angew. Chem , vol.111 , pp. 2230
  • 21
    • 58149361149 scopus 로고    scopus 로고
    • Muci, A. R.; Buchwald, S. L. Topics Org. Chem. 2001, 219, 131.
    • (b) Muci, A. R.; Buchwald, S. L. Topics Org. Chem. 2001, 219, 131.
  • 38
    • 35848970978 scopus 로고    scopus 로고
    • and references cited therein
    • Xu, Z.; Mao, J.; Zhang, Y. Catal. Commun. 2008, 9, 97; and references cited therein.
    • (2008) Catal. Commun , vol.9 , pp. 97
    • Xu, Z.1    Mao, J.2    Zhang, Y.3
  • 55
    • 58149356625 scopus 로고    scopus 로고
    • General Experimental Procedure for Biaryls 2a-h and 4a-c A suspension of aryl telluride (1a, 0.135 g, 0.5 mmol, Pd(PPh 3)4 (0.45 g, 8 mmol, Na2CO3 (0.106 g, 1 mmol) and Ag2O (0.116 g, 0.5 mmol) in MeOH (3 mL) was irradiated in a water bath of an ultrasonic cleaner for 45 min. Then, the reaction was diluted with EtOAc (30 mL, The organic layer was washed with sat. solution of NH4Cl (2 x 10 mL) and H2O (2 x 10 mL, dried over MgSO4, and concentrated under vacuum. The crude product was purified by flash silica column chromatography using hexane as eluent and characterized as biphenyl 2a. Compound 2a: white solid; mp 70-72°C. 1H NMR (300 MHz, CDCl3, δ, 7.13-7.28 (m, 6 H, ArH, 7.45 (d, J, 7.2 Hz, 4 H, ArH, 13C NMR (75.5 MHz, CDCl3, δ, 122.6, 126.95, 130.11, 141.61. GC-MS, 154(100, 153(57, 152 3
    • 3): δ = 55.11, 105.56, 116.83, 119.57, 128.18, 128.29, 129.40, 129.45, 129.81, 132.85, 157.69. GC-MS (%): 314 (100), 299 (29), 271 (29), 228 (25), 157 (25).


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