Pyridinium chloride → 2-i-Propyl-5-(2-thiophene-2-ylethenyl)-1,3-benzenediol

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Reaction Steps

This material was prepared from 2-[2-(3.5-dimethoxy-4-i-propylphenyl)ethenyl]thiophene obtained in example 17 and pyridine hydrochloride in 24% yield as the same way as described in example 2(b). 1HNMR (CDCl3, ppm): δ 1.40 (d, J=7.1 Hz), 3.47 (qint., J=7.1 Hz, 1H), 4.8 (b, 2H), 6.48 (s, 2H), 6.74 (d, J=16Hz, 1H), 7.0-7.1 (m, 3H), 7.2-7.3 (m, 1H).

Provenance & Evidence