Photochemistry of Substituted 2-Benzoylcyclohexanones
نویسندگان
چکیده
منابع مشابه
Photochemistry of substituted dibenzothiophene oxides: the effect of trapping groups.
[reaction: see text] Photolyses of dibenzothiophene sulfoxides (DBTOs) with intramolecular trapping functionalities attached in the 4-position show higher quantum yields of deoxygenation. Deoxygenation quantum yields are also less solvent dependent for the substituted DBTOs. Product analysis shows a detectable amount of intramolecular O-trapped products and suggests that solvent effects observe...
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In the course of investigating the applicability of m ulticom ponent analysis of U .V .** sp e c tra 1 for the determ ination of base com positions of nucleo tide m ixtures containing other than the four usual b a s e s2, the photolysis of a wide variety of sub stituted com pounds was examined. A lthough the literature on the photochemistry of substituted pyrim idines is extensive3’ 4, little...
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Dibenzothiophene-5-oxide (DBTO) cleanly produces dibenzothiophene (DBT) on direct photolysis, but with very low quantum yield. A proposed mechanism involves scission of the S-O bond which is coupled to an intersystem crossing step, thus producing the sulfide and O((3)P) via a unimolecular pathway. To test this hypothesis, heavy atom substituted DBTOs were prepared and photolyzed. Iodo-, bromo-,...
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We report the photochemistry of (OCS)n 2 cluster ions following 395 nm (n52 – 28) and 790 nm (n52 – 4) excitation. In marked contrast to (CO2)n 2 , extensive bond breaking and rearrangement is observed. Three types of ionic products are identified: S2 ~OCS!k , S ~OCS!k /OCS2 ~OCS!k21 , and (OCS)k 2 . For n,16, 395 nm dissociation is dominated by S2 -based fragments, supporting the theoretical p...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1991
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.64.3488