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https://www.selleckchem.com/products/dyngo-4a.html Incorporation of a non-hexagonal ring into a nanographene framework can bring up with new electronic properties. During our attempted synthesis of naphthalene-bridged double [6]helicene and heptagon-containing nanographene by Scholl reaction, an unexpected azulene-embedded nanographene ( 1a ) and its triflyloxylated product ( 1b ) were obtained, which were confirmed by X-ray crystallographic analysis and 2D NMR spectroscopy. A 5/7/7/5 ring fused substructure containing two formal azulene units is formed, but only one of them shows azulene-like electronic structure. The formation of this unique structure can be explained by arenium ion mediated 1,2-phenyl migration and a naphthalene to azulene rearrangement reaction according to our in-silico study. This report represents the first experimental example of thermodynamically unfavorable naphthalene to azulene rearrangement and may open the opportunity to new azulene-based molecular materials. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Solanum tuberosum potato lines with high amylose content were generated by crossing with the wild potato species Solanum sandemanii followed by repeated backcrossing to Solanum tuberosum lines. The trait, termed increased amylose (IAm), was recessive and present after three generations of backcrossing into S. tuberosum lines (6.25% S. sandemanii genes). The tubers of these lines were small, elongated and irregular with small and misshaped starch granules and high sugar content. Additional backcrossing resulted in less irregular tuber morphology, increased starch content (4.3%-9.5%) and increased amylose content (29%-37.9%) but indifferent sugar content. The amylose in the IAm starch granules was mainly located in peripheral spots, and large cavities were found in the granules. Starch pasting was suppressed, and the digestion-resistant starch (RS) content was increased. Comprehensive microarray polymer profiling (CoMPP) analysis rev

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