Synthesis of substituted anthracenes, PENTAPHENE (cas 222-93-5)s and trinaphthylenes via alkyne-cyclotrimerization reaction
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Add time:09/29/2019 Source:infona.pl
The [2+2+2] cycloaddition reaction of 1,6-diynes 3 with 4-aryl-2-butyn-1-ols 4 and the following oxidation of the resulting benzylic alcohols to the aldehydes 1 and then treatment with an acid catalyst provided annulated anthracenes 2 in good yields.
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