SCHWEFELVERBINDUNGEN DES ERDOELS XVI. DIBENZOTHIOPHENE MIT EINEM UNVERZWEIGTEN C1-C5-ALKYLREST
The preparation of all position isomers of dibenzothiophenes with a linear C1-C5-side chain and of the corresponding 5,5-dioxides is described. (1)H-NMR data and GC-purities are given. Key words: Monoalkyldibenzothiophenes; methyldibenzothiophenes; ethyldibenzothiophenes; propyldibenzothiophenes; butyldibenzothiophenes; pentyldibenzothiophenes; monoalkyldibenzothiophene-5,5-dioxides.
Synthesis of Some 4-Substituted and 4,6-Disubstituted Dibenzothiophenes
The synthesis is described of various 4-substituted (1) and 4,6-disubstituted (2) dibenzothiophenes by lithiation reactions.The factors controlling the formation of 4,6-disubstituted dibenzothiophenes by the lithiation of 4-methyl- and 4-ethyl-dibenzothiophene at the 6-position versus lithiation at the α-carbon of the 4-substituent are examined.
Katritzky, Alan R.,Perumal, Subbu
p. 1737 - 1740
(2007/10/02)
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