3598-34-3Relevant academic research and scientific papers
Preparation of chlorosyringols and chloropyrogallols - Components of pulp bleaching effluents
Smith,Wearne,Wallis
, p. 921 - 930 (2007/10/03)
The preparation and properties of chlorosyringols and chloropyrogallols, components of pulp bleaching effluents, and their acetates are given. The compounds are obtained mainly by direct chlorination of both phenols or of syringol acetate with various chlorinating reagents. 5-Chloropyrogallol and 4,5-dichloropyrogallol were the products of demethylation of 5-chloro-3-methoxycatechol acetate and 4,5-dichloro-3-methoxycatechol acetate, respectively. The acetates of all ten chloro compounds were separated by gas chromatography. Electron impact mass spectra and 1H and 13C NMR data for the acetates are given.
SELECTIVE SYNTHESES OF ANALOGUES OF THE NATURAL PRECOCENES. SYNTHESIS AND REGIOSELECTIVE O-ALKYLATION OF 6-CHLORO- AND 6-TERT-BUTYL-7,8-DIHYDROXY-2,2-DIMETHYL-4-CHROMANONES
Seboek, Peter,Timar, Tibor,Jaszberenyi, Joseph Csaba,Batta, Gyula
, p. 2595 - 2608 (2007/10/02)
The synthesis of novel benzopyran compounds 16 a-f, analogues of the natural precocenes (1 and 2) is described.These derivatives are obtained via novel synthesis and regioselective O-alkylation of 6-chloro- and 6-tert-butyl-7,8-dihydroxy-2,2-dimethyl-4-ch
