Potassium carbonate as a base for the N-alkylation of indole and pyrrole in ionic liquids

Tetrahedron Letters

Volumn 47, Issue 14, 2006, Pages 2435-2438

  Jorapur, Yogesh R ^a   Jeong, Jae Min ^b   Chi, Dae Yoon ^a  

^a Inha University   (South Korea)

^b Seoul National University   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

ACETONITRILE; BORIC ACID; CESIUM; HALIDE; INDOLE; IONIC LIQUID; POTASSIUM CARBONATE; PYRROLE; SULFONIC ACID DERIVATIVE;

ALKYLATION; ARTICLE; CHEMICAL ANALYSIS; CHEMICAL STRUCTURE; REACTION ANALYSIS; STRUCTURE ANALYSIS; TECHNIQUE;

EID: 33644846674     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2006.01.129     Document Type: Article

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36. +), 180 (100). Anal. Calcd: C, 88.38; H, 6.71; N, 4.91. Found: C, 88.14; H, 6.99; N, 4.61.
37. Ionic liquid recycling procedure: To the ionic liquid phase ethyl acetate (5.0 mL) was added and filtered. The filtrate was washed with water (2.0 mL × 4). The organic layer was dried over anhydrous magnesium sulfate and evaporated under reduced pressure. Ionic liquid was further dried under high vacuum at 80°C overnight and used for the next run.