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Synthesis of Riboflavin Tetraacetate by Solid Superacid ZrO2-SO42-
Author(s): ZHAO Jing-lian, YANG Yong-gang
Pages: 13-
15
Year: 1999
Issue:
2
Journal: FINE CHEMICALS
Keyword: 核黄素四乙酸酯; 固体超强酸; 催化剂;
Abstract: 对固体超强酸ZrO2-SO42-催化合成核黄素四乙酸酯进行了研究.核黄素与乙酸酐摩尔比1∶40,催化剂用量为反应物总质量的8.0%,反应温度80℃,反应时间2.5h,核黄素四乙酸酯产率可达76.9%.ZrO2SO42-催化活性高于TiO2-SO42-和Fe2O3-SO42-,ZrO2在1mol/L H2SO4中浸渍24h,600℃焙烧3h催化活性最高.
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