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Volumn , Issue 12, 2007, Pages 1913-1916

Homocoupling of arylboronic acids with a catalyst system consisting of a palladium(II) N-heterocyclic carbene complex and p-benzoquinone

Author keywords

Biaryls; Boron; Catalysis; Coupling; Palladium

Indexed keywords

1,4 BENZOQUINONE; ARYLBORONIC ACID DERIVATIVE; BORONIC ACID DERIVATIVE; CARBENE; PALLADIUM; UNCLASSIFIED DRUG;

EID: 34547625787     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-984531     Document Type: Article
Times cited : (50)

References (50)
  • 19
  • 43
    • 34547620828 scopus 로고    scopus 로고
    • Typical Procedure, Synthesis of 3a To a solution of p-tolylboronic acid 2a (69.8 mg, 0.502 mmol) and p-benzoquinone (33.2 mg, 0.307 mmol) in MeOH (10 mL) was added 1a (3.25 mg, 0.0051 mmol, and the flask was evacuated and backfilled with Ar three times at -78°C. The reaction mixture was stirred for 24 h at r.t. under Ar. The solvent was removed in vacuo and the residue was purified by silica gel column flash chromatography (eluent: hexane) to afford 3a 40.2 mg, 88, as colorless solids. Other reactions were also carried out in a similar manner. If the product and excess pbq are inseparable by chromatography, crude materials were treated with excess NaBH4 in MeOH at r.t. prior to purification. All starting materials and products are known compounds
    • 4 in MeOH at r.t. prior to purification. All starting materials and products are known compounds.
  • 45
    • 0031559767 scopus 로고    scopus 로고
    • Selected examples: (a) Lee, J.-C.; Nishio, A.; Tomita, I.; Endo, T. Macromolecules 1997, 30, 5205.
    • Selected examples: (a) Lee, J.-C.; Nishio, A.; Tomita, I.; Endo, T. Macromolecules 1997, 30, 5205.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.