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Evaporation gave 4.48 g of a clear liquid, which was further purified  by recrystallization from hexane/acetone (95:5) to obtain 3.52 g of the
acid derivative as white crystals (72.9%).

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Evaporation gave a clear liquid(4.48 g), which was further purified  by recrystallization from hexane/acetone (95:5) to obtain the acid derivative as white crystals (3.52 g ,72.9%).
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war3202063(½ð±Ò+1):лл£¡ 2010-11-20 21:56:59
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war3202063(½ð±Ò+3, ·­ÒëEPI+1):лл£¡ 2010-11-20 21:56:48
Evaporation gave 4.48 g of a clear liquid, which was further purified  by recrystallization from hexane/acetone (95:5) to obtain 3.52 g of the
acid derivative as white crystals (72.9%).
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A clear liquid(4.48 g) was obtained by evaporation, further being purified  by recrystallization in hexane/acetone (95:5), and  the yield of the acid derivative with white crystals was 72.9%£¨3.52g£©.
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