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One-Pot Synthesis of 4H-Chromenes by Tandem Benzylation and Cyclization in the Presence of Sodium Bisulfate on Silica Gel

Autor: Saki Miyota, Mitsuo Kodomari, Toshio Takido, Mamiko Hayakawa, Takumi Yamamoto, Tadashi Aoyama

Publikováno v: Synlett. 25:1571-1576

A simple and efficient method has been developed for the synthesis of 4H-chromenes from o-hydroxybenzylic alcohols and dicarbonyl compounds containing active methylene groups by using silica gel supported sodium bisulfate. Various dicarbonyl compound

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::578dc4c78d4eab77da7ff2236010208e
https://doi.org/10.1055/s-0033-1339026

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Direct Carbon-Carbon Bond Formation from Alcohols and Active Methylenes using NaHSO4/SiO2

Autor: Tadashi Aoyama, Toshio Takido, Saki Miyota, Mitsuo Kodomari

Publikováno v: Synlett. 2011:2971-2976

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b78c3cdf11d041439715b90656b55158
https://doi.org/10.1055/s-0031-1290083

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ChemInform Abstract: One-Pot Synthesis of 4H-Chromenes by Tandem Benzylation and Cyclization in the Presence of Sodium Bisulfate on Silica Gel

Autor: Mitsuo Kodomari, Mamiko Hayakawa, Takumi Yamamoto, Tadashi Aoyama, Toshio Takido, Saki Miyota

Publikováno v: ChemInform. 45

Application of 1,3-di-tert-butylpentan-1,3-dione as the diketone or 2-(hydroxy-tert-butyl-methyl)phenol as the o-hydroxybenzylic alcohol fails to give the desired chromenes.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c003b1c0a775149733124c9aa19c6d9
https://doi.org/10.1002/chin.201451152

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