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Volumn , Issue 12, 2008, Pages 1781-1784

Palladium N-heterocyclic carbene catalysts for synthesis of diaryl ethers

Author keywords

C O bond formation; Etherification; N heterocyclic carbene; Palladium coupling

Indexed keywords

1,3 DIALKYLIMIDAZOLINIUM; BENZALDEHYDE DERIVATIVE; CARBENOID; DIARYL ETHER DERIVATIVE; ETHER DERIVATIVE; IMIDAZOLE DERIVATIVE; N HETEROCYCLIC CARBENE; PALLADIUM;

EID: 48349096167     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2008-1078548     Document Type: Article
Times cited : (17)

References (54)
  • 50
    • 48349087794 scopus 로고    scopus 로고
    • General Procedure for the Synthesis of 1,3-Dialkyl-imidazolinium Bromides 2: To a solution of 1-(methoxyethyl)imidazoline (1 mmol) in DMF (3 mL, alkyl halide (1.1 mmol) was added and the resulting solution was stirred for 1 h at r.t. and heated for 12 h at 80°C Et2O (10 mL) was added to the reaction mixture. A white solid was precipitated in this period. The precipitate was then crystallized from EtOH-Et2O (1:2, 1-(2-Methoxyethyl)-3-(cyclohexylmethyl)imidazolinium Bromide (2a, yield: 2.65 g (87, mp 29°C. IR: 1465 (C=N) cm-1. 1H NMR (300.13 MHz, CDCl3, δ, 3.11 (s, 3 H, OMe, 3.38 (t, J, 4.8 Hz, 2 H, NCH2CH2O, 3.59 (t, J, 4.8 Hz, 2 H, NCH2CH2O, 3.79, 3.89 (m, 4 H, NCH 2CH2N, 0.72-1.41 (m, 11 H, CH2C 6H11, 3.15 d, 2 H, CH2C 6H11
    • 2O, filtered through a pad of silica gel with copious washings, concentrated and purified by flash chromatography on silica gel. The purity of the compounds was checked by GC and yields are based on the aryl chloride.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.