Facile Synthesis of Pyrrolyl-Containing Semisquaraines in Water as Precursors for Non-Symmetric Squaraines
نویسندگان
چکیده
One-step reactions between squaric acid and pyrroles, such as 3-ethyl-2,4-dimethyl-pyrrole 1,2,5-trimethylpyrrole, in water provide the corresponding pyrrol-2-yl- pyrrol-3-yl-containing semisquaraines high yields. These serve useful precursors for synthesis of various non-symmetric pyrrole-containing squaraine dyes.
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ژورنال
عنوان ژورنال: Compounds
سال: 2022
ISSN: ['2673-6918']
DOI: https://doi.org/10.3390/compounds3010002