Tao Xian-pin
2014
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Fine chemicals
Abstract
Four kinds of diallylmethylalkyl( C12,C14,C16,C18) ammonium bromide were synthesized by using diallylmethylamine and 1-bromoalkane straight chain alkanes as raw materials. The effects of reaction temperature,reaction time,molar ratio of raw materials and solvent type on the product yields were discussed. The synthesis conditions were optimized. The structures of the products were characterized by means of IR,1HNMR,13 CNMR and elemental analysis. The results show that the solvent of ethanol was appropriate,the better reaction temperature was 60 ~ 65 ℃,reaction time was 72~ 78 h and molar ratio of DAM to bromoalkane was 1∶1. 1,under such conditions,the product yields were 80. 05%,78. 52%,76. 90% and 62. 82% for diallylmethylalkyl( C12,C14,C16,C18)ammonium bromide,respectivly. The obtained products have expected structures and good solubility in polar solvents.