CAS: 126-54-5; 2,4,8,10-Tetraoxaspiro[5.5]Undecane

上下游产品

CAS号50-00-0 甲醛 | CAS号141-78-6 乙酸乙酯 | CAS号115-77-5 季戊四醇 | CAS号109-87-5 甲缩醛

📜聚合甲醛置于水,硼酸体系中,化学反应 72.0H,以0.4%的收率获得2,4,8,10-四氧螺环[5,5]十一烷
参考文献:水热条件下由甲醛合成2,4,8,10-四氧杂螺[5.5]-十一烷的新颖合成途径
标题:水热条件下由甲醛合成2,4,8,10-四氧杂螺[5.5]-十一烷的新颖合成途径
摘要:我们在这里报告了在高岭土和硼酸存在下,通过使用甲醛(唯一的前体)进行水热合成2,4,8,10-四氧六环[5.5]-十一烷的过程.报道的方法是合成上述产物的最简单方法.J.杂环化学.(2010).
Doi:10.1002/jhet.348

专利信息

专利号:US-4528386-A
优先权日:1979-07-03
标 题 :Synthesis of 2,4,8,10-tetroxaspiro[5.5]undecane
发明人：POSHKUS ALGIRDAS C
权利人:NASA
摘要:Pentaerythritol can be converted to its diformal, 2,4,8,10-tetroxaspiro[5.5]undecane, by heating it to a temperature within the range of about 110° to 150° C. for a period of up to 10 minutes, in the presence of a slight excess of paraformaldehyde and of a catalytic quantity of an acid catalyst such as sulfuric acid. The reaction may be carried out in two steps, by forming first the monoformal, then the diformal. In any case, total reaction time is about 10 minutes and yield of diformal are greater than 90%. n Previous processes require hours or days, and often, tedious operating procedures.

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优先权日:2012-05-24
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优先权日:2015-05-15
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