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@ARTICLE{Shanmuganathan:186296,
      author       = {Shanmuganathan, Saravanakumar and Greiner, Lasse and
                      Domínguez de María, Pablo},
      title        = {{S}ilica-immobilized piperazine: {A} sustainable
                      organocatalyst for aldol and {K}noevenagel reactions},
      journal      = {Tetrahedron letters},
      volume       = {51},
      number       = {50},
      issn         = {0040-4039},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {RWTH-CONV-062731},
      pages        = {6670-6672},
      year         = {2010},
      cin          = {154110 / 150000},
      cid          = {$I:(DE-82)154110_20140620$ / $I:(DE-82)150000_20140620$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000285370100051},
      doi          = {10.1016/j.tetlet.2010.10.080},
      url          = {https://publications.rwth-aachen.de/record/186296},
}