32281-36-0 苯并[1,2-b:4,5-b']二噻吩-4,8-二酮

运输信息：常温运输。危险描述：非危险化学品，WGK Germany:3，海关编码:29349990，存储类别:11 - 可燃固体

化学合成；材料科学

化学合成；材料科学

合成路线 1（1. 合成：32281-36-0）

• 产率：86.1%
• 合成条件：With n-butyllithium In tetrahydrofuran at 0 - 20℃; Inert atmosphere
• 实验步骤：加入100ml三瓶，6.82g（37.25mmol，1.0当量）噻吩-3-（N，N-二乙基）甲酰胺，氮气置换3次，然后加入新蒸馏的四氢呋喃30ml;冰盐浴冷却至内部温度滴加至0度，滴加15.0ml（37.25mmol，1.0当量）2.5M正丁基锂，滴加时间20分钟。加完后，将混合物在室温下搅拌30分钟，倒入40g碎冰，搅拌过夜，第二天抽滤，用水，甲醇，石油醚洗涤，真空干燥黄色粉末为苯并[1,2-b:4,5-b']二噻吩-4,8-二酮;3.50g，收率86.1％;
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