Synthesis of a Series of 4H-Pyran Derivatives with Multicomponent Reaction in DBSA/H2O Microemulsion System
Jun Wang,
Jialin Zang,
Dan Li
et al.
Abstract:A series of 4H-pyran derivatives were synthesized through a three-component condensation reaction in a pot using aromatic aldehyde, cyclohexanedione, and malononitrile in the dodecyl benzenesulfonic acid/H2O microemulsion system. This protocol is attractive because dodecyl benzenesulfonic acid microemulsion is superior for organic reaction due to its dual catalysis. On the one hand, dodecyl benzenesulfonic acid acts as a Brønsted acid to catalyze the reaction; on the other hand, it can form a microemulsion as … Show more
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