Invited for the cover of this issue is Lechosław Latos-Grażyński and co-workers at University of Wrocław. The image depicts cobalt(II) azuliporphyrin as a magical organometallic platform to perform other types of chemistry, that is, dioxygen activation, aromaticity control, and construction of intermetallic communication motifs. Read the full text of the article at 10.1002/chem.201903215.
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| http://dx.doi.org/10.1002/chem.201904036 | DOI Listing |
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Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Campus Scientifico E. Mattei, via Ca' Le Suore 2, 61029, Urbino, PU, Italy. Electronic address:
Cinnamic Acid Sugar Ester Derivatives (CASEDs) are a class of natural compounds that exhibit several interesting biological activities. However, to date, no examples of their use in sunscreen formulations have been reported. Here, we describe the synthesis of a series of novel cinnamic acid esters of glucose (4a-g), ribose (4h) and lactose (4i) starting from the respective acetals 3.
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Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.
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Kasetsart University - Bangkhen Campus, Chemistry, 50 Ngamwongwan Road, 10900, Bangkok, THAILAND.
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Chem Sci
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College of Chemistry and Chemical Engineering, Key (Guangdong-Hong Kong Joint) Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University Shantou 515063 P. R. China
In the past few years, the direct activation of organohalides by ligated boryl radicals has emerged as a potential synthetic tool for cross-coupling reactions. In most existing methods, ligated boryl radicals are accessed from NHC-boranes or amine-boranes. In this work, we report a new photocatalytic platform by modular assembly of readily available amines and diboron esters to access a library of ligated boryl radicals for reaction screening, thus enabling the cross-coupling of organohalides and alkenes including both activated and unactivated ones for C(sp)-C(sp) bond formation by using the assembly of DABCO A1 and BNepB1.
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