Results 51 to 60 of about 758 (191)

Magnetothermal‐Triggered Response and Self‐Healing of Recyclable and Reprocessable Nanocomposites for Actuation Systems

open access: yesAdvanced Functional Materials, Volume 36, Issue 45, 5 June 2026.
Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog   +3 more
wiley   +1 more source

Synthesis and spectral properties of substituted 1,4-dihydropyridines and 1,4,5,6,7,8-hexahydroquinolines

open access: yes, 1987
Cyclocondensation of 5-nitrophenyl-2-furaldehydes or 5-nitrophenyl-2-thiophenecarbaldehydes with acetoacetates and ammonia in organic solvents afforded 1,4-dihydropyridine derivatives, with 3-aminocrotonates and dimedone the former yielded 1,4,5,6,7,8 ...
Pavol Čupka   +2 more
core   +1 more source

Cytosolic Phosphoenoylpyruvate Carboxykinase Deficiency: Clinical, Biochemical, and Genetic Features of Five Non‐Finnish Patients

open access: yesAmerican Journal of Medical Genetics Part A, Volume 200, Issue 6, Page 1192-1203, June 2026.
ABSTRACT Cytosolic phosphoenoylpyruvate carboxykinase (PEPCK‐C) is an essential, rate‐limiting enzyme in the gluconeogenesis pathway. PEPCK‐C deficiency presents with hypoglycaemia, hyperlactataemia and hepatopathy, and was first reported in association with bi‐allelic PCK1 variants in 2014.
Isaac Bernhardt   +9 more
wiley   +1 more source

Sustainable, recyclable and biodegradable castor oil-derived elastomers enabled by dynamic acetoacetyl formed amides

open access: yes
Developing sustainable, recyclable, and biodegradable elastomers with the mechanical properties comparable to commercial polymers presents a formidable challenge.
Ren, Yu   +6 more
core   +1 more source

Indium Trichloride Catalyzed Efficient one-pot Synthesis of Highly Substituted Furans

open access: yes, 2007
A one-pot synthesis of the substituted furans 3 could be achieved in good yields by reacting but-2-ene-1,4-diones 1 with acetoacetates 2 in the presence of a catalytic amount of InCl3 (20 mol %) using i-PrOH as solvent at 80–90 C for 4–8 h.
Giri, V S   +4 more
core   +1 more source

PECHMANN'S CONDENSATION OF METHYL β-RESOR- CYLATE WITH ETHYL α-ALKYLACETOACETATES.

open access: yes, 1938
Methyl β-resorcylate has been condensed with ethyl α-methyl-, α-ethyl-, α-propyl-, α-butyl-. and α-bensyl acetoacetates in the presence of sulphuric acid.
S. M. SETHNA, R. C. SHAH
core   +1 more source

Green and Efficient Synthesis of Novel Polysubstituted 2-Pyrrolidinones under Catalyst and Solvent-Free Conditions

open access: yes, 2022
An efficient and green synthesis of novel 2-pyrrolidinone analogs by the reaction of various primary amines, alkyl acetoacetates, and maleic anhydride via grinding and neat conditions at room temperature has been described with good to high yields (68–94%
Mahnaz Ghereghlou (12527802)   +3 more
core   +1 more source

Feline diabetes. Part 2: monitoring and management with other diseases

open access: yesIn Practice, Volume 48, Issue 5, Page 228-241, June 2026.
Background: Diabetes mellitus (DM) in cats is commonly seen in primary care practice and presents several clinical and practical challenges to owners and vets. In recent years feline DM has seen paradigm shifts in management and monitoring. Aim of the article: In this second article of a series on feline DM, we look at the monitoring options that are ...
Ian Ramsey, Anna Kraemer
wiley   +1 more source

Synthesis of new fatty dihydropyridines and polyhydroquinolines

open access: yes, 2014
Neste trabalho foi investigada a síntese de 1,4-dihidropiridinas e polihidroquinolinas funcionalizadas com diferentes cadeias graxas. Para síntese destes compostos os acetoacetatos graxos foram obtidos a partir da transesterificação do acetoacetato de ...
Rosa, Sabrina Brum
core  

Construction of Highly Functionalized Diazoacetoacetates via Catalytic Mukaiyama−Michael Reactions

open access: yes, 2016
Functionalized diazo acetoacetates are prepared by an efficient Mukaiyama−Michael reaction between methyl 3-(trialkylsilanoxy)-2-diazo-3-butenoate and α,β-unsaturated enones.
Michael P. Doyle (353722)   +3 more
core   +1 more source

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