L. Xiao-jun
2010
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China Surfactant Detergent & Cosmetics
Abstract
2-isopropyl-5-methyl-2-hexenal was synthesized from isoamyl aldehyde as starting material and heated under reflux condition through aldol condensation.The effects of catalysts and the catalyst dosage,phase transfer catalyst(PTC) dosage and reaction time,et al on the yield were investigated in details.The experimental results indicated that the proper catalyst is sodium hydroxide and the optimum dosage is 3.0% based on isoamyl aldehyde by weight.The proper PTC is tetrabutylammonium bromide and the dosage is 1.0% based on isoamyl aldehyde by weight.The reaction time is 3 h.Under the above-mentioned conditions,the yield of 2-isopropyl-5-methyl-2-hexenal achieves 83.3%.The product was characterized by IR spectrum as well as 1HNMR and 13CNMR spectra.