引用本文:
Yang Liu, Jun Liang, Xiu Hong Liu, Ji Cai Fan, Zhi Cai Shang. Polyethylene glycol (PEG) as a benign solvent for Knoevenagel condensation[J]. Chinese Chemical Letters,
2008, 19(9): 1043-1046.
doi:
10.1016/j.cclet.2008.06.016
Citation: Yang Liu, Jun Liang, Xiu Hong Liu, Ji Cai Fan, Zhi Cai Shang. Polyethylene glycol (PEG) as a benign solvent for Knoevenagel condensation[J]. Chinese Chemical Letters, 2008, 19(9): 1043-1046. doi: 10.1016/j.cclet.2008.06.016
Citation: Yang Liu, Jun Liang, Xiu Hong Liu, Ji Cai Fan, Zhi Cai Shang. Polyethylene glycol (PEG) as a benign solvent for Knoevenagel condensation[J]. Chinese Chemical Letters, 2008, 19(9): 1043-1046. doi: 10.1016/j.cclet.2008.06.016
Polyethylene glycol (PEG) as a benign solvent for Knoevenagel condensation
摘要:
The Knoevenagel condensation of aromatic aldehydes with active methylene compound proceeded efficiently in polyethylene glycol at room temperature with L-proline as catalyst. The yield is high and the products had E-isomer dominantly. Polyethylene glycol containing L-proline could be recycled and reused for several times without noticeably decreasing in productivity.
English
Polyethylene glycol (PEG) as a benign solvent for Knoevenagel condensation
Abstract:
The Knoevenagel condensation of aromatic aldehydes with active methylene compound proceeded efficiently in polyethylene glycol at room temperature with L-proline as catalyst. The yield is high and the products had E-isomer dominantly. Polyethylene glycol containing L-proline could be recycled and reused for several times without noticeably decreasing in productivity.
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Key words:
- Polyethylene glycol
- / L-Proline
- / Knoevenagel condensation
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