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Volumn , Issue 16, 2007, Pages 2521-2524

Ligand- and base-free synthesis of 1,3-diynes catalyzed by low loading of heterogeneous Pd/C and CuI

Author keywords

Heterogeneous palladium on carbon; Homocoupling; Ligand and base free; Oxygen; Terminal alkynes

Indexed keywords

1,3 DIYNE DERIVATIVE; ALKYNE DERIVATIVE; CARBON; COPPER; DIMETHYL SULFOXIDE; OXYGEN; PALLADIUM; UNCLASSIFIED DRUG;

EID: 35348991749     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-986663     Document Type: Article
Times cited : (51)

References (37)
  • 12
  • 37
    • 35348985613 scopus 로고    scopus 로고
    • General Procedure for Homocoupling Reaction of Terminal Alkynes: To a test tube with a stir bar were added terminal alkyne (1 mmol, 1, Pd/C (1.1 mg, 0.01 mol, for aromatic terminal alkyne or 3.2 mg, 0.03 mol% for aliphatic terminal alkyne; purchased from Sigma-Aldrich Co, copper(I) iodide (5.7 mg, 3 mol, and DMSO (0.5 mL) and the system was sealed with a septum. The air inside the test tube was replaced with oxygen (balloon) by five vacuum-oxygen cycles and the mixture was stirred at r.t. After 24 h, the mixture was diluted with H2O (10 mL) and Et2O (40 mL, and passed through a membrane filter (Millipore, Millex®-LH, 0.45 μm, The filtrate was separated into two layers and the ethereal layer was washed subsequently with H2O (70 mL) and brine (20 mL, dried over MgSO4, and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (hexane or hexane-Et2O) to give the correspondin
    • 2: C, 73.43; H, 4.79. Found: C, 73.39; H, 4.92.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.