Results 31 to 40 of about 114,544 (214)
Iridium-Catalyzed and pH-Dependent Reductions of Nitroalkenes to Ketones
Molecules, 2022 A highly chemoselective conversion of α,β-disubstituted nitroalkenes to ketones is developed. An acid-compatible iridium catalyst serves as the key to the conversion.
Tingting Wang +4 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2017 The present work addresses the development of an eco-friendly and cost-efficient protocol for the oxidation of primary and secondary alcohols to the corresponding aldehydes and ketones by mechanical processing under air. Ball milling was shown to promote
Andrea Porcheddu +4 more
doaj +1 more source
Palladium−Indium-Mediated Arylative Cyclization of Allenyl-Aldehydes and -Ketones
, 2016 The arylative cyclization of allenyl-aldehydes and -ketones to form homoallylic cyclopentanols and cyclohexanols by the palladium-catalyzed and indium-mediated Babier allylation is ...
Yoongho Lim (2982009) +3 more
core +1 more source
Radical alpha-Trifluoromethoxylation of Ketones by Means of Organic Photoredox Catalysis
, 2021 The first light-driven method for the alpha-trifluoromethoxylation of ketones is reported. Enol carbonates, in particular Boc derivatives, react with N-trifluoromethoxy-4-cyano-pyridinium triflimide (2a) using the photoredox-catalyst 4-CzIPN (5 mol ...
Antonio , Togni +8 more
core +1 more source
Highly substituted benzannulated cyclooctanol derivatives by samarium diiodide-induced cyclizations
Beilstein Journal of Organic Chemistry, 2010 A series of γ-oxo esters suitably substituted with various styrene subunits was subjected to samarium diiodide-induced 8-endo-trig cyclizations. Efficacy, regioselectivity and stereoselectivity of these reactions via samarium ketyls strongly depend on ...
Jakub Saadi +2 more
doaj +1 more source
Naturally occurring long-chain β-hydroxyketones
Journal of Lipid Research, 1971 A fraction comprising about 0.7% of the extractable surface lipids of cabbage (Brassica oleracea) leaves was isolated and identified as a mixture of isomeric βhydroxyketones consisting mainly of 14-keto-16-hydroxynonacosane and 15-keto-13 ...
HARALD H.O. SCHMID, PATRICIA C. BANDI
doaj +1 more source
Palladium-catalyzed α-arylation of arylketones at low catalyst loadings
, 2014 The authors thank the ERC (Advanced Researcher award-FUNCAT), 7th Framework Program NMP2-LA-2010–246461 (SYNFLOW) and King Saud University for funding.A general catalytic protocol for the a-arylation of aryl ketones has been developed.
Nolan, Steven Patrick +10 more
core +1 more source
Simple synthesis of pyrrolo[3,2-e]indole-1-carbonitriles
Beilstein Journal of Organic Chemistry, 2013 Alkylation of 5-nitroindol-4-ylacetonitriles with ethyl chloroacetate, α-halomethyl ketones, and chloroacetonitrile followed by a treatment of the products with chlorotrimethylsilane in the presence of DBU gives 1-cyanopyrrolo[3,2-e]indoles substituted ...
Adam Trawczyński +3 more
doaj +1 more source
Switchable asymmetric bio-epoxidation of alpha,beta-unsaturated ketones
, 2016 Efficient asymmetric bio-epoxidation of electron-deficient alpha,beta-unsaturated ketones was realized via a tandem reduction-epoxidation-dehydrogenation cascade, which proceeds in a switchable manner to afford either chiral epoxy ketones or allylic ...
Liu, YC +2 more
core +1 more source
Constituents of the Essential Oil of Suregada Zanzibariensis Leaves are Repellent to the Mosquito, Anopheles Gambiae s.s. [PDF]
, 2010 In traditional African communities, repellent volatiles from certain plants generated by direct burning or by thermal expulsion have played an important role in protecting households against vectors of malaria and other diseases.
Joseph, Cosam C +9 more
core +1 more source