- Technology for preparing isogalbanate
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The invention relates to a technology, especially relates to a technology for preparing isogalbanate, and belongs to the technical field of synthetic perfumes. The technology comprises the following steps: 1, carrying out refluxing dehydration on potassium hydroxide and isoamyl alcohol adopted as raw materials under stirring and heating conditions; 2, cooling the obtained isoamyl alcohol solution of potassium isopentyl alcoholate to 80-85DEG C, adding methyl chloroacetate in a dropwise manner while stirring, and keeping the dropwise addition reaction temperature in a range of 85-95DEG C; 3, carrying out pumping filtration on the above obtained reaction solution to remove potassium chloride, and recovering isoamyl alcohol; 4, directly adding finished methyl isoamyloxyacetate, propenol and a catalyst potash to a rectifying tower, and refluxing for 2h; and 5, recovering propenol when the tower top temperature keeps at 92DEG C or above unchanged, cooing to about 40DEG C after propenol recovery ends, and carrying out vacuum rectification to obtain finished isogalbanate. The technology has the advantages of simple operating conditions, easily available raw materials, green and environmentally-friendly reaction process, and suitableness for industrial scale production.
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Paragraph 0016; 0017
(2017/04/03)
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