Synthesis p. 252 - 254 (1994)
Update date:2022-08-02
Topics:
Zimmermann
2,4,6-Triarylthiopyrylium salts 1 and arylacetaldehydes 2 react in the presence of sodium methoxide in methanol by a 2,5-[C4 + C2, ring transformation to give 2,4,5-triarylthiobenzophenones 3. This ring transformation offers a new an
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