阿科玛计划美国工厂PVDF产能扩产20%

ments,1997, 33: 319-336.[4]

Vol.48 No.l0(2017)

基的性质对该反应收率影响较大，吸电子基团- Cl，-Br的产率优于供电子基团-Me，-OMe，但反 应整体都可以达到中等以上收率。

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3结论

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本文报道了苯并吡喃并四氢噻吩的绿色合 成方法。该方法以乙醇作为溶剂，无碱条件下，2- 苯基-3-硝基-2H-苯并吡喃和2,5-二羟基-1,4- 二噻烧加热回流，通过sulfa-Michael/aldol串联反应，得到了一系列高产率苯并吡喃并四氢噻吩衍 生物。该方法操作简单，条件温和，原子经济性 高，完全符合绿色有机合成的要求，为合成多官 能团四氢噻吩稠环化合物提供了-条新的途径。参考文献：

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Green Synthesis of Benzopyrano tetrahydrothiophene Derivatives

DING Chen-hao, XIE Jian-wu

(College of Chemistry and Life Science, Zhejiang Normal University, Jinhua，Zhejiang 321004, China)Abstract： A simple, highly efficient and atom economical green protocol has been developed for the cat­alyst-free synthesis of benzopyrano tetrahydrothiophene derivatives by sulfa-Michael/aldol reaction in EtOH at reflux temperature. This catalyst-free green approach provided a series of the addition products in high yields.

Keywords: 1,4 -dithiane -2,5 -diol; catalyst -free; green synthesis;benzopyrano tetrahydrothiophene derivatives

阿科玛计划美国工厂PVDF产能扩产20%

近日，阿科玛公司宣布将提升其美国卡尔弗特工厂的氟聚合物(Kynar® PVDF)产能约20%。继今 年年初在中国常熟基地成功实现Kynar®氟聚合物产能扩大之后，阿科玛进一步对美国投资开启新产 能，从而能更好地支持其美国客户的业务增长，尤其是在水过滤等新兴领域，以及化学加工工业和高性 能线缆(汽车、光纤、石油）等传统市场。

(来源：http://www.chinaiol.com/fc/r/1013/01187747.html)