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Bipyrrolinonylidene-type compound, its use as colorant, and method of production thereof
Bipyrrolinonylidene-type compound, its use as colorant, and method of production thereof
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机译:双吡咯啉亚基型化合物,其作为着色剂的用途及其生产方法
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摘要
A bipyrrolinonylidene-type compound is provided which is useful as colorants such as dyes and pigments, or other organic chemical products or intermediates thereof. A method of producing the bipyrrolinonylidene-type compound is also provided, which is suitable for large-scale industrial production with high yield. The bipyrrolinonylidene-type compound is represented by general formula (1). The bipyrrolinonylidene-type compound is obtained by oxidizing a pyrrolinone-type compound represented by the general formula (3) in the presence of an anthraquinone-type catalyst.
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