125420-10-2Relevant articles and documents
Pyrylium Compounds. 42. Benzocycloalkenones and Dihydro-2H,7H-1-benzopyranones from 2,4,6-Triarylpyrylium Salts and Cycloalkane-1,2-diones
Zimmermann, T.,Fischer, G. W.,Olk, B.,Findeisen, M.
, p. 306 - 318 (2007/10/02)
2,4,6-Triarylpyrylium salts 1 react with cycloalkane-1,2-diones 2 in the presence of an appropriate condensing agent to yield benzocycloalkenones 3.Thus, sodium acetate and cyclohexane-1,2-dione (2a) lead to the dihydro-2H-naphthalenones 3a-i, whereas wit