Pyridazine-bridged expanded rosarin and semi-rosarinogen
2021
The synthesis of the pyridazine-bridged expanded rosarin 1 and a reduced precursor, semi-rosarinogen 2, is reported. A single crystal X-ray diffraction analysis of 1 and theoretical calculations show that both 1 and 2 have distorted structures. Expanded rosarin 1 and its precursor 2 can differentiate various thiols in organic solvents by means of species-specific colour changes and reaction times.
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