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发明公开
CN104592077A α-胡萝卜素的制备方法 无效 - 驳回

α-胡萝卜素的制备方法
摘要：
本发明提供了一种α-胡萝卜素的制备方法，该制备方法包括：将3-甲基-5-(2,6,6-三甲基-2-环已烯-1-基)-2,4-戊二烯基膦酸二乙酯（13），与十碳双醛（12）在温度为0-30℃下进行Wittig-Horner缩合反应得到α-胡萝卜素（1）。本发明的制备方法工艺路线简捷，操作简单，收率高，成本低，绿色环保，极具工业价值。
摘要（英）：

The invention provides a preparation method for alpha-carotene. The preparation method comprises the step of subjecting 3-methyl-5-(2,6,6-trimethyl-2-cyclohexene-1-yl)-2,4-pentadienyl diethyl phosphonate (13) and 10-carbon dialdehyde (12) to the Wittig-Horner condensation reaction at a temperature of 0 to 30 DEG C so as to obtain the alpha-carotene (1). The preparation method provided by the invention has the advantages of simple and direct process route, simple operation, high yield, low cost, good environment friendliness and great industrial value.

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