A New, Improved and Convenient Synthesis of 4H-Cyclopenta[2,1-b:3,4-b′]-dithiophen-4-one

A New, Improved and Convenient Synthesis of 4H-Cyclopenta[2,1-b:3,4-b′]-dithiophen-4-one
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4H-环戊[2,1-b:3,4-b]-二噻吩-4-酮的新型、改进且便捷的合成

DOI:
10.1055/s-2002-31958
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
J. Reynolds
J. Reynolds
中科院分区:
--
文献类型:
--
作者:
J. Brzezinski;J. Reynolds

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报道了一种新的高效合成4H-环戊烷[2,1-b:3,4-b‘]二硫杂菲-4-酮(CDT)(1)的方法。这是通过一锅区域特异性地合成双(2-碘-3-噻吩基)甲醇(13),然后将其氧化成双(2-碘-3-噻吩基)酮(14),再经Ullmann偶联得到标题化合物1来实现的。
A new and efficient three-step synthesis of 4H-cyclopenta[2,1-b:3,4-b']dithiophen--4-one (CDT) (1) is described. This was achieved by a one-pot, regiospecific synthesis of bis(2-iodo-3-thienyl)methanol (13), its subsequent oxidation to the bis(2-iodo-3-thienyl) ketone (14) which after Ullmann coupling yielded the title compound 1.