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Five new nonsymmetric BODIPY dyes based on the Biellmann methodology [NSBBs (nonsymmetrical Biellmann BODIPYs)] were prepared by condensation of pairs of different pyrroles with thiophosgene. Treatment of the resulting thioketones with MeI and BF3·Et2O/TEA yielded a wide range of products in a simple manner, with selective alkylation of each pyrrole of the indacene core and with controlled functionalization...
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