Songwei Wen, N. Bio
2011
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Zhejiang Chemical Industry
Abstract
A new synthesis method for carotenoids key intermediate 2,7-dimethyl-2,4,6-octatriene 1,8-dial was discussed.Using 1,4-dichloro-2-butene as the starting material,via Grignard reaction,condensation synthesis reaction and acid hydrolysis,2,7-dimethyl-2,4,6-octatriene-1,8-dial was obtained.The advantages of this method is high reaction selectivity,less by-product,simple process and easy control.