Results 181 to 190 of about 136,021 (344)
Total Synthesis of (+)‐Disorazole Z1
Chemistry – A European Journal, EarlyView.The first total synthesis of disorazole Z1, a highly up to picomolar active cytotoxic natural product, is presented. An acyclic carbon chain containing a chiral quaternary carbon center surrounded by two chiral secondary alcohols was synthesized and combined with a functionalized diene‐stannane to obtain the carbon skeleton of one half of disorazole Z1.
Thomas J. Bauer +3 more
wiley +1 more source
Intramolecular PCET of α‐Keto Acids: Synthesis of Trifluoromethyl Ketones via Ketyl Radicals
Chemistry – A European Journal, EarlyView.Decarboxylation of α‐keto acids have conventionally served as simple building blocks for the generation of nucleophilic acyl radicals. Herein, we demonstrate a distinct approach for this substrate class, showcasing the generation of ketyl radicals through a proton‐coupled electron transfer (PCET) mechanism.
Rifat N. Nabi +4 more
wiley +1 more source
ChemSusChem, Volume 18, Issue 6, March 15, 2025.Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
wiley +1 more source
Naturally Occurring Lactones and Lactames. III. The Absolute Configuration of the Hydroxycitric Acid Lactones: Hibiscus Acid and Garcinia Acid. [PDF]
, 1969 Per M. Boll +7 more
openalex +1 more source
En Route Toward Sustainable Polycarbonates via Large Cyclic Carbonates
ChemSusChem, EarlyView.The use of safe carbonylating agents, allowed by a suitable (bio)catalytic systems, affords the sustainable and green synthesis of large‐ring cyclic carbonates by reaction of renewables such as bio‐based diols. These carbonates are prone to ring‐opening polymerization paving the way for the production of circular aliphatic polycarbonates.
Francesco Della Monica +5 more
wiley +1 more source
Researches on indoles. Part VIII. 3-hydroxymethyl indole-2-carboxylic acid lactone
, 1938 Rita Harriet Harradence, Francis Lions
openalex +2 more sources
Preparation of Optically Active γ- and δ-Lactones by Microbiological Reduction of the Corresponding Keto Acids [PDF]
, 1963 G. Tuynenburg Muys +2 more
openalex +1 more source
Recycling of Polyurethane via Mechanocatalytic Methanolysis/Hydrolysis
ChemSusChem, EarlyView.In this study, it is shown that up to 86% of soluble polyol can be recovered from the hydrolysis of polyurethane using a ball milling‐assisted process below 100 °C in the presence of NaOH, a small amount of H2O and a Cu/MgAlOx co‐catalyst. Polyurethane (PU) is the 6th most produced plastic on a global basis, and thus one of the most important targets ...
Bolun Wang +7 more
wiley +1 more source