The tptz molecule is reduced by potassium into its anion-radical in the compound K(tptz)(2) (), whereas it is reductively coupled by SmI(2) and UI(3)(py)(4) into the bis-triazinide ligand in the dinuclear complexes [Sm(2)(tptz-tptz)(DMF)(8)][I](4).3.5DMF (.3.5DMF) and U(2)I(6)(tptz-tptz)(MeCN)(2).2MeCN (.2MeCN) where each metal ion occupies a pentadentate N(5) cavity of the [tptz-tptz](2-) ligand.
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http://dx.doi.org/10.1039/b909547k | DOI Listing |
Protein Expr Purif
January 2025
Department of Chemistry, Indian Institute of Technology, Delhi, India. Electronic address:
The aim of this study was to purify BMP-2 in an easy and time-efficient way. We have developed a new method in which BMP-2 is produced through leaky expression in E. coli BL21 (DE3) cells as inclusion bodies, eliminating the need for inducer Isopropyl β-D-1-thiogalactopyranoside (IPTG).
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January 2025
Institut für Anorganische Chemie, University of Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart, Germany.
Biochem Biophys Res Commun
January 2025
Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA. Electronic address:
Hemoglobin and myoglobin are known to undergo autoxidation, in which the oxyferrous form of the heme is oxidized to the ferric state by O. Dehaloperoxidase-A (DHP-A), a multifunctional catalytic hemoglobin from Amphitrite ornata is an exception and is observed to undergo the reverse process, during which the ferric heme is spontaneously reduced to the oxyferrous form under aerobic conditions. The high reduction potential of DHP (+202 mV at pH 7.
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December 2024
Pharmacy, Cosmetic Chemistry and Biotechnology Research Group, Łukasiewicz Research Network-Industrial Chemistry Institute Rydygiera 8 01-793 Warsaw Poland +48 453 056 175.
A critical evaluation of the feasibility of a previously published method for synthesising halomethyl carbinols from carbonyl compounds and CHBr or CHCl using a bimetallic TiCl-Mg complex is presented. The synthesis of compounds lacking the -CH- group in their structure was achieved by following the procedures proposed in the reference literature or by introducing modifications to selected process parameters. These compounds were not identified as expected β-halohydrins but as products of reductive dimerisation or subsequent pinacolic rearrangement of carbonyl substrates.
View Article and Find Full Text PDFChem Sci
January 2025
Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST) Daejeon 34141 Republic of Korea
Securinega alkaloids, known for their unique structures and neuroplasticity-inducing potential, are promising candidates for treating neurodegenerative diseases such as depression and substance use disorders (SUD). Herein, we delineate the total synthesis of two dimeric Rauhut-Currier (RC) reaction-based securinega alkaloids, (-)-flueggenine A and (-)-15'--flueggenine D. The key step involved a novel reductive Heck dimerization strategy, utilizing a silyl-tethered enone coupling partner to ensure the desired reactivity and stereoselectivity.
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