Novel catalytic action of clay montmoril
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Makoto Onaka; Taku Mimura; Ryosuke Ohno; Yusuke Izumi
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Article
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1989
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Elsevier Science
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French
โ 161 KB
Clay montmorillonite shows novel catalytic behavior to the addition of silyl ketene acetals to ynoates as a heterogeneous solid acid, and this activity has been compared with that obtained with trimethylsilyl triflate.