Results 11 to 20 of about 32,736 (165)

One pot tandem dehydrogenative cross-coupling of primary and secondary alcohols by ruthenium amido-functionalized 1,2,4-triazole derived N-heterocyclic carbene complexes

open access: yesRSC Advances, 2022
Three neutral 1,2,4-triazole derived amido-functionalized N-heterocyclic ruthenium carbene complexes efficiently catalyzed one-pot tandem dehydrogenative cross-coupling of primary and secondary alcohols via a metal–ligand non-cooperative pathway.
Anuj Kumar   +5 more
openaire   +2 more sources

One-pot multi-reaction processes: synthesis of natural products and drug-like scaffolds [PDF]

open access: yes, 2014
One-pot multi-reaction processes involving Overman rearrangements, metathesis cyclizations, and Diels–Alder reactions have been developed for the rapid and efficient synthesis of amino-substituted carbocyclic and heterocyclic compounds.
Calder, Ewen D.D.   +2 more
core   +1 more source

Recent Advances in Homogeneous Metal-Catalyzed Aerobic C–H Oxidation of Benzylic Compounds [PDF]

open access: yes, 2018
Csp(3)-H oxidation of benzylic methylene compounds is an established strategy for the synthesis of aromatic ketones, esters, and amides. The need for more sustainable oxidizers has encouraged researchers to explore the use of molecular oxygen.
Domínguez Pérez, Pilar Esther   +3 more
core   +3 more sources

Mechanisms linking colorectal cancer to the consumption of (processed) red meat : a review [PDF]

open access: yes, 2015
Colorectal cancer (CRC) is the third most commonly diagnosed cancer in the world. The vast majority of CRC cases have been linked to environmental causes rather than to heritable genetic changes.
De Smet, Stefaan   +3 more
core   +2 more sources

Photochemistry of N-(selenoalkyl)-phthalimides. Formation of N, Se-heterocyclic systems [PDF]

open access: yes, 2015
A variety of N-(selenomethyl)alkyl-phthalimides (alkyl = -(CH2)n-; n = 2-5, 1a, b, d, e) and N-(selenobenzyl)propyl phthalimide (1c) were synthesized and their photochemistry was studied at λ = 300 nm.
Argüello, Juan Elias   +3 more
core   +1 more source

Processed Meat and Colorectal Cancer: A Review of Epidemiologic and Experimental Evidence [PDF]

open access: yes, 2008
Processed meat intake may be involved in the etiology of colorectal cancer, a major cause of death in affluent countries. The epidemiologic studies published to date conclude that the excess risk in the highest category of processed meat-eaters is ...
Corpet, Denis E.   +2 more
core   +4 more sources

NEW DERIVATIVES OF 2-R1-N-(5-R)-1,3,4-THIADIAZOL-2-YL-BENZOLSULFONAMIDES: SYNTHESIS, PHYSICOCHEMICAL PROPERTIES AND BIOLOGICAL ACTIVITY PREDICTION [PDF]

open access: yesAnnals of Mechnikov's Institute, 2015
Introduction: The analysis of modern literature, including overseas one, showed that a lot of the scientific researches is devoted to finding and creating biologically active compounds on base 1,3,4-thiadiazole.
Sych I.V.   +2 more
doaj  

Synthesis of New Cationic Cp*Ir N-Heterocyclic Carbene Complexes and Their High Catalytic Activities in the Oppenauer-Type Oxidation of Primary and Secondary Alcohols [PDF]

open access: yesOrganometallics, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Fumihiro Hanasaka   +2 more
openaire   +1 more source

Tertiary Alcohols as Radical Precursors for the Introduction of Tertiary Substituents into Heteroarenes [PDF]

open access: yes, 2019
Despite many recent advances in the radical alkylation of electron-deficient heteroarenes since the seminal reports by Minisci and co-workers, methods for the direct incorporation of tertiary alkyl substituents into nitrogen heteroarenes are limited ...
Fishman, DA   +3 more
core   +2 more sources

Oxetanes: Recent Advances in Synthesis, Reactivity and Medicinal Chemistry [PDF]

open access: yes, 2016
The 4-membered oxetane ring has been increasingly exploited for its behaviors, i.e. influence on physicochemical properties as a stable motif in medicinal chemistry, and propensity to undergo ring opening reactions as a synthetic intermediate.
Bull, JA   +4 more
core   +1 more source

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