Dimerizations of 2-bromo-3-methyl-1,4-naphthoquinone and 2-methyl-1,4-naphthoquinone in tetra-n-butylammonium bromide
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DOI: 10.1016/j.tet.2019.130899
Abstract: Abstract 2-Bromo-3-methyl-1,4-naphthoquinone and 2-methyl-1,4-naphthoquinone are highly reactive species known to dimerize in various ways. The product obtained in the dimerization of each compound is primarily dependent upon the solvent used. Ionic liquids represent a new… read more here.
Keywords: tetra butylammonium; naphthoquinone; naphthoquinone methyl; bromo methyl ... See more keywords
Some Features of Reaction of 2-Methyl-1,4-naphthoquinone with H-Phosphonium Salts Based on Diphenylphosphine
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DOI: 10.1134/s1070363219110094
Abstract: It was shown that the direction of the reaction of 2-methyl-1,4-naphthoquinone with H-phosphonium salts obtained from diphenylphosphine and trifluoromethanesulfonic or trifluoroacetic acids depends on the nature of the anion. Structure of the obtained mono- and… read more here.
Keywords: phosphonium; methyl naphthoquinone; reaction methyl; naphthoquinone phosphonium ... See more keywords
New Hygrocins K–U and Streptophenylpropanamide A and Bioactive Compounds from the Marine-Associated Streptomyces sp. ZZ1956
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DOI: 10.3390/antibiotics11111455
Abstract: Marine-derived Streptomyces actinomycetes are one of the most important sources for the discovery of novel bioactive natural products. This study characterized the isolation, structural elucidation and biological activity evaluation of thirty compounds, including twelve previously… read more here.
Keywords: streptomyces zz1956; hydroxy methyl; methyl naphthoquinone; activity ... See more keywords