Results 201 to 210 of about 455,246 (392)
CLV.—The intermolecular condensation of methyl ethyl ketone in the presence of calcium carbide [PDF]
O. Becker, Jocelyn Field Thorpe
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A copper‐catalyzed decarboxylative alkynylation of tropanes is developed. This approach works under mild conditions and selectively produces a range of 3‐β‐alkynylated tropanes. Moreover, it provides a versatile and convergent platform for further functionalization of the triple bond.
Mayssa Zayene+6 more
wiley +1 more source
THE FORMATION OF KETONE BODIES FROM ISOVALERIC ACID
Irving Zabin, Konrad Bloch
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ON THE PRESENCE OF KETONES AND BETAHYDROXYBUTYRIC ACID IN THE URINE OF NORMAL CHILDREN [PDF]
Borden S. Veeder
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The Failing Heart Relies on Ketone Bodies as a Fuel
G. Aubert+13 more
semanticscholar +1 more source
An unprecedent dual catalytic nanophotocatalytic and asymmetric organocatalytic system for the α‐functionalization of aldehydes is developed using carbon nanodots as photosensitizers. The optimized methodology yields the alkylated products with up to 94% yield and up to 98:2 e.r., evidencing the possible recycling of the nanocatalysts.
Antonio Di Sabato+9 more
wiley +1 more source
LXXXII.—Action of light and of oxygen on dibenzyl ketone [PDF]
Emily C. Fortey
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γ‐Amino acid derivatives with an α‐quaternary center are prevalent in medicinally important compounds. A dual N‐heterocyclic carbene/photocatalytic pathway is developed for the three‐component synthesis of α, α ‐disubstituted γ‐amino esters. This methodology allows for the rapid synthesis of diverse libraries of γ‐amino esters in good yields.
Adam X. Wayment, Karl A. Scheidt
wiley +1 more source
On the Catalytic Action of Japanese Acid Earth. XI. The Isomerisation of Aldehydes to Ketones and the Explanation of the Migration of the Radicals from the Standpoint of the Electronic Theory [PDF]
Koshiro Ishimura
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The 1,4‐conjugate addition of Grignard reagents to various cyclic and linear enones using a heterogeneous catalyst is reported. Recyclable copper nanoparticles immobilized on polysaccharide support (e.g., cellulose, chitosan) enable high chemo‐ and regioselectivity.
Luca Deiana+5 more
wiley +1 more source