4-(Azulen-1-yl) six-membered heteroaromatics substituted in 2- and 6- positions with 2-(2-furyl)vinyl, 2-(2-thienyl)vinyl or 2-(3-thienyl)vinyl moieties
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DOI: 10.1016/j.tet.2017.03.035
Abstract: Abstract The synthesis of pyrylium and pyridinium salts and pyridines with azulene-1-yl moieties in position 4 and two 2-heteroarylvinyl groups in positions 2 and 6 was accomplished. The pyrylium salts were obtained starting from pyranones… read more here.
Keywords: vinyl thienyl; thienyl vinyl; pyrylium salts; vinyl ... See more keywords
Pyrylium Salts: Selective Reagents for the Activation of Primary Amino Groups in Organic Synthesis
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DOI: 10.1055/s-0039-1690703
Abstract: Primary amino groups represent an ubiquitous category of functionalities in synthetic building blocks, drugs, and natural products. Therefore, such functionalities offer themselves as perfect handles for late-stage functionalization, and the development of robust and efficient… read more here.
Keywords: pyrylium salts; amino groups; pyrylium; primary amino ... See more keywords