L-Proline as an efficient and reusable promoter for the synthesis of coumarins in ionic liquid / 浙江大学学报(英文版)(B辑:生物医学和生物技术)
Journal of Zhejiang University. Science. B
;
(12): 990-995, 2008.
Article
in English
| WPRIM
| ID: wpr-335410
ABSTRACT
The effect of L-proline as a promoter on the condensation reaction of salicylaldehyde or its derivatives with ethyl acetoacetate in neutral ionic liquid [emim]BF4 was studied. All reactions were carried out under mild reaction conditions and achieved high yields. Moreover, the ionic liquid containing L-proline could be recycled and reused for several times without noticeably decreasing in productivity. The results show that the L-proline-[emim]BF4 system has a potential in contribution to the development of environmentally friendly and inexpensive processes in organic syntheses.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Proline
/
Chemistry
/
Coumarins
/
Ionic Liquids
Language:
English
Journal:
Journal of Zhejiang University. Science. B
Year:
2008
Type:
Article
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