Benzophenone photoreduction by heteroatom-containing donors |
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| Authors: | J.C. Ronfard-Haret R.V. Bensasson J.C. Gramain |
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| Affiliation: | Laboratoire de Biophysique, INSERM U. 201, ERA 951 du CNRS, Muséum National d''Histoire Naturelle, 61 Rue Buffon, 75005 Paris, France;Laboratoire de Chimie et Biochimie des Substances Naturelles, ERA 392 du CNRS, Université de Clermont II, 63170 Aubiere, France |
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| Abstract: | Nanosecond flash photolysis has been carried out on benzophenone solutions in benzene and acetonitrile in presence of oxygen- and sulfur-containing reductants such as anisole, thioanisole, dibutyl sulfide and methyl 2-octyl ether. The quantum yield of ketyl formation is compared to previous results on the quantum yields of the final benzophenone disappearance. This comparison is also related to previous data on benzophenone reduction by nitrogen-containing reductants such as amines and amides and suggests a general mechanism for benzophenone photoreduction by heteroatom-containing donors. |
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