Jin Feng-min
2013
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Journal
Chemical Industry and Engineering
Abstract
Diethyl(3-pyridyl) borane was prepared from 3-bromopyridine and diethylmethoxyborane.The effects of reaction time,temperature and molar ratio of the material on the reaction were studied.The experimental result showed that the optimum condition were: reaction time was 6 h,reaction temperature was 0—5 ℃,dropping time of diethylmethoxyborane was 30 min,molar ratio of 3-bromopyridine to diethylmethoxyborane was 0.9∶1.0,and molar ratio of diethylmethoxyborane to isopropyl magnesium chloride was 1.0∶1.0.The product was white solid with melting point of 172—175 ℃,the yield of product was up to 81%.IR and MS were used to characterize the structure of product.