✍ Scribed by Dong Fang; Changmei Jiao; Chunjie Ni
No coin nor oath required. For personal study only.
SO~3~H‐functionalized halogen‐free ionic liquids were prepared and used as efficient and recyclable catalysts for the synthesis of α‐aminophosphonates at room temperature via the one‐pot three‐component condensation reaction in aqueous media with good yields of 80–96%. The postprocessing was simple, and the catalysts could be reused at least six times without noticeably decreasing the catalytic activity. © 2010 Wiley Periodicals, Inc. Heteroatom Chem 21:546–550, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.20644
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## Abstract magnified image Some halogen‐free acyclic task‐specific ionic liquids (TSILs) were synthesized as novel and recyclable catalysts for the synthesis of 5‐oxo‐5,6,7,8‐tetrahydro‐4H‐benzo[b]pyrans by one‐pot three‐component condensation of aromatic aldehyde, malononitrile (or ethyl cyanoac
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