Results 121 to 130 of about 13,953 (273)
Two new anthraquinones from the lichen Caloplaca spitsbergensis
, 2000 lav, anthraquinones, lavstoffer ...
Søchting, Ulrik +2 more
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Brominated Thiophenes as Precursors in the Preparation of Brominated and Arylated Anthraquinones
, 2009 Brominated anthraquinones can be synthesized directly from bromothiophenes when these are reacted with 1,4-naphthoquinones in the presence of meta-chloroperoxybenzoic acid.
Yasuko Tanaka +2 more
core +1 more source
Transformative Chemistry, EarlyView.In this work, we integrate photoactive naphthalimide unit into highly crystalline donor–acceptor covalent organic frameworks (D–A COFs) and achieve fine‐tuning of the electronic structure of D–A COFs by synergistically modulating the in‐plane conjugation and core polarity.
Qiang Ma +9 more
wiley +1 more source
Electrochemical Studies of Substituted Anthraquinones
, 2008 Electrochemical potentials of a series of anthraquinone derivatives were studied in both aqueous solution and acetonitrile. The long term goal of this work was to find derivatives which could be reduced easily for studies of photoinduced electron ...
Rabinowitz, Daniel Joshua
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The Chemical Record, EarlyView.Nickel foam—one material, two faces, and several versatile roles depending on electrolytic conditions. For more than 50 years, nickel foam electrodes have served in electrosynthesis as powerful and readily available electrode materials. Due to their inexpensive nature and easy handling, they have been widely employed.
Rok Narobe +2 more
wiley +1 more source
Original scientific paper Isolation and synthesis of anthraquinones and related
, 2004 : Anthraquinones and their glycosides, along with other compounds, have been isolated and characterized from the acetone:water (1:1) percolation of dried roots of Rubia cordifolia.
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Wildlife Biology, EarlyView.Multiple management strategies exist to combat bird damage to agriculture. We explored combining two tools, drones as frightening devices and an avian repellent, to assess effectiveness of an integrated method to deter large flocks on complex landscapes. We evaluated the ability of a spraying drone (DJI Agras MG‐1P) deploying Avian Control (i.e. active
Jessica L. Duttenhefner +2 more
wiley +1 more source
, 2012 Eight new 9,10-anthraquinones (1–8) including three acetonide derivatives of 3-hydroxy-2-hydroxymethyl-9,10-anthraquinones (6–8) were isolated from an ethanol extract of the roots of Knoxia valerianoides. On the basis of chemical transformation reactions
Xiuli Wu +21 more
core +1 more source
International Journal of Cosmetic Science, EarlyView.An SPF formulation incorporating Bixa orellana seed extracts and oils showed enhanced UV protection, highlighting the potential of natural bioactive compounds as effective boosters in photoprotective cosmetic products. Abstract Objective This study investigated the antioxidant activity of oil and alkaline aqueous extracts obtained from Bixa orellana ...
Ister Cordeiro Mariotini +8 more
wiley +1 more source
Machine Learning Accelerates Crystallization for Structure Determination
Angewandte Chemie, Volume 138, Issue 25, 15 June 2026.Single‐crystal X‐ray diffraction (SCXRD) is often constrained by the difficulty of obtaining suitable crystals. Here, a machine learning‐accelerated co‐crystal discovery workflow is established for a crystalline mate strategy that achieves over 95% prediction accuracy and experimentally delivers 114 co‐crystals from 120 candidates.
Cui‐Zhou Luan +10 more
wiley +2 more sources