DOI: 10.1039/A801073K
(Paper)
Reference Section for: J. Chem. Res. (S), 1998, 532-533
Reaction Between some 6-Halogeno-2,2-dimethyl-, 2,2,6-Trimethyl- and 2,2-Diaryl-2H-naphtho[1,2-b]-pyrans and 1,1-Diphenylethene
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Allan Breese, W. David Cotterill, Muhammad Iqbal and Robert Livingstone
Abstract
6-Halogeno-2,2-dimethyl- and 2,2,6-trimethyl-2H-naphtho[1,2-b]pyran reacted with 1,1-diphenylethene in acid solution to give 6-halogeno-3,4-dihydro-2,2-dimethyl- and 3,4-dihydro-2,2,6-trimethyl-4-(2,2-diphenylvinyl)-2H-naphtho[1,2-b]pyran, respectively, along with their corresponding dimers, the reaction between 2,2-diaryl-2H-naphtho[1,2-b]pyrans and 1,1-diphenylethene, under identical conditions, yielded 3,4-dihydro-4-(2,2-diarylvinyl)-2,2-diphenyl-2H-naphtho[1,2-b]pyrans, by a different mechanism.
References
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