[4+2] cycloaddition of ortho-quinone methides promoted by ionic liquids: an efficient and mild protocol for the synthesis of tetrahydropyranobenzopyrans
Metadata of CSIR Papers
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Title |
[4+2] cycloaddition of ortho-quinone methides promoted by ionic liquids: an efficient and mild protocol for the synthesis of tetrahydropyranobenzopyrans
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Creator |
Yadav, JS
Reddy, BVS Sadashiv, K Padmavani, B |
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Subject |
Chemistry, Applied; Chemistry, Organic
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Description |
The stereoselective synthesis of trans-annelated pyrano[3,2-c]benzopyrans has been achieved by intramolecular [4 + 2] cycloaddition of o-benzo-quinone methides that are generated in situ from o-hydroxybenzaldehydes and unsaturated alcohols using an air- and moisture-stable ionic liquid, i.e., 1-butyl-3-methylimidazolium tetrafluoroborate [bmim]BF4 under mild and neutral conditions.
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Publisher |
WILEY-V C H VERLAG GMBHWEINHEIMPO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
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Date |
2011-09-20T12:18:25Z
2011-09-20T12:18:25Z 2004 |
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Type |
Article
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Identifier |
ADVANCED SYNTHESIS & CATALYSIS
1615-4150 http://hdl.handle.net/123456789/16085 |
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Language |
English
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