Chemical and Pharmaceutical Bulletin p. 1887 - 1890 (1997)
Update date:2022-08-04
Topics:
Kita, Yasuyuki
Takeda, Yoshifumi
Okuno, Takayuki
Egi, Masahiro
Iio, Kiyosei
Kawaguchi, Ken-Ichi
Akai, Shuji
A combination of PhICl2 and Pb(SCN)2 is effective for the p-selective thiocyanation of various types of p-unsubstituted phenols and naphthols 1 to give p-thiocyanatophenols and naphthols 3. The reaction proceeded at 0 °C to room temperature in good to quantitative yields. Twenty-five examples are given, in which various functional groups, such as chloro, allyl, carbonyl, ester, amide, and primary hydroxyl groups are shown to be compatible with this reaction.
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