68840-08-4Relevant articles and documents
Synthesis method of 5-(2-bromoacetyl)-2-hydroxybenzaldehyde
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, (2019/06/12)
The invention discloses a synthesis method of 5-(2-bromoacetyl)-2-hydroxybenzaldehyde, and belongs to the field of medicine synthesis. According to the method, the acylation reaction is conducted withsalicylaldehyde as the raw material to obtain 2-(acetoxyl)-benzaldehyde, then the rearrangement reaction is conducted, and finally the bromination reaction is conducted to obtain 5-(2-bromoacetyl)-2-hydroxybenzaldehyde. The preparing method has the advantages of being high in product purity and high in yield.
Preparation method of substituted benzobfuran-2-formamide
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Paragraph 0031; 0032, (2016/10/08)
The invention belongs to the technical field of medicine, and discloses a preparation method of substituted benzobfuran-2-formamide (please see the formula in the specification). A compound shown in the formula (2) is obtained by removing the protecting group of a compound (3), and then 5-(1-piperazinyl)-benzofuran-2-formamide (1) is obtained through ammonolysis. The method overcomes the defects of an existing preparation method, operation is easy, use of expensive catalysts is avoided, intermediates can be conveniently separated, and cost is low.
Fungicidal 1-benzoxepin derivatives
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Page 25, (2010/02/09)
The invention concerns novel 1-benzoxepin derivatives, methods for preparing them, their use as fungicides, in particular in the form of fungicidal compositions, as well as methods for controlling phytopathogenic fungi of crops using said compounds or said compositions.