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Merck

A highly negatively charged γ-Keggin germanodecatungstate efficient for Knoevenagel condensation.

Chemical communications (Cambridge, England) (2012-07-14)
Kosei Sugahara, Toshihiro Kimura, Keigo Kamata, Kazuya Yamaguchi, Noritaka Mizuno
ABSTRAKT

A tetra-n-butylammonium (TBA) salt of a γ-Keggin -6-charged germanodecatungstate, [γ-H(2)GeW(10)O(36)](6-) (I), could act as an efficient homogeneous catalyst for Knoevenagel condensation of active methylene compounds with carbonyl compounds.

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Supelco
Tetrabutylammonium bisulfate solution, suitable for ion pair chromatography, LiChropur, concentrate, ampule
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Tetrabutylammonium chloride, suitable for ion pair chromatography, LiChropur, ≥99.0%
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Tetrabutylammonium bromide, suitable for ion pair chromatography, LiChropur, ≥99.0%
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Tetrabutylammonium iodide, suitable for ion pair chromatography, LiChropur, ≥99.0%
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Tetrabutylammonium nitrate, 97%
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Tetrabutylammonium phosphate monobasic, puriss., 99% (T)
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Tetrabutylammonium iodide, ≥99.0% (AT)
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Tetrabutylammonium iodide, reagent grade, 98%
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Tetrabutylammonium azide
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Tetrabutylammonium fluoride solution, 1.0 M in THF
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Tetrabutylammonium bromide, ReagentPlus®, ≥99.0%
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Tetrabutylammonium chloride, ≥97.0% (NT)
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