131882-46-7Relevant academic research and scientific papers
One-pot synthesis of 4 h -chromenes by tandem benzylation and cyclization in the presence of sodium bisulfate on silica gel
Aoyama, Tadashi,Yamamoto, Takumi,Miyota, Saki,Hayakawa, Mamiko,Takido, Toshio,Kodomari, Mitsuo
supporting information, p. 1571 - 1576 (2014/07/08)
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 compounds suc
ACYLATION OF 2,4-DIARYL-4H-CHROMENES BY THE ACTION OF ACETIC ANHYDRIDE AND PERCHLORIC ACID
Suzdalev, K. F.,Koblik, A. V.
, p. 870 - 873 (2007/10/02)
4H-Chromenes were found to be acylated at the 3-position by the action of acetic anhydride and perchloric acid.The structure was determined of other reaction products - the indenobenzopyrylium and 2,4-diaryl-1-benzopyrylium salts.
