The Photo-Fries Rearrangement of 2,5-Disubstituted Phenyl Acetates
In a homogenous solution, the photo-Fries rearrangement of 2,5-disubstituted phenyl acetates gives ortho-hydroxyacetophenones as major photoproducts.The ortho/para ratio can be increased by using a highly viscous medium or restricted spaces such as those in zeolites.On the other hand, micellar solutions have little effect.
Suau, Rafael,Torres, Gregorio,Valpuesta, Maria
p. 1311 - 1314
(2007/10/02)
Tobacco smoke chemistry. 2. Alkyl and alkenyl substituted guaiacols found in cigarette smoke condensate.
A series of alkyl and alkenyl substituted guaiacols, which comprise a group of biologically and organoleptically active compounds, have been synthesized. Mass spectra and GC retention times for these have been recorded and compared with those obtained for constituents of a weakly acidic fraction of smoke condensate derived from American blend type cigarettes. On the basis of these results, 25 guaiacols have been identified, 18 of which have not been detected in tobacco smoke condensate previously.
Arnarp,Bielawski,Dahlin,Dahlman,Enzell,Pettersson
p. 44 - 50
(2007/10/02)
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