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US4465833A Process for preparing ethynylated benzoic acid derivatives 失效
乙炔化苯甲酸衍生物的制备方法

Process for preparing ethynylated benzoic acid derivatives
摘要:
A novel ethynylation process is disclosed which provides an expanded series of novel ethylnyl-terminated aromatic compounds having base sensitive substituents and which facilitates the economic preparation of prior art ethynyl-substituted aromatic compounds.
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