Results 71 to 80 of about 758 (191)

Chemistry of Heterocycles. Part-IX Synthesis of lsoxazolylpyrazolones

open access: yes, 1985
Department of Chemistry, Kakatiya University, Warangal-506 009 Manuscript received 20 September 1983, revised 16 April 1984, accepted 15 February 1985 Isoxazolylpyrazolones (4) have been obtained by the heterocyolisation of ethyl-2­[1-phenyl-2-(3 ...
K. MALLA REDDI   +2 more
core   +1 more source

One-Step Continuous Flow Synthesis of Highly Substituted Pyrrole-3-carboxylic Acid Derivatives via in Situ Hydrolysis of tert-Butyl Esters

open access: yes, 2016
The first one-step, continuous flow synthesis of pyrrole-3-carboxylic acids directly from tert-butyl acetoacetates, amines, and 2-bromoketones is reported.
Ananda Herath (2169748)   +1 more
core   +1 more source

Intermolecular Organophotocatalytic Cyclopropanation of Unactivated Olefins. [PDF]

open access: yesJ Am Chem Soc, 2023
Fischer DM   +3 more
europepmc   +1 more source

Pyruvate and Glucose as Precursors of Acetoacetate

open access: yesExperimental Biology and Medicine, 1957
Summary1. The ketogenic power of various C14-labeled substrates, incubated with actively respiring homogenates of mammary gland and of kidney cortex, has been compared by measuring rate of incorporation of the substrate carbon into carrier-acetoacetate.
openaire   +2 more sources

Enantioselective synthesis of the fragrance trans-magnolione under asymmetric phase transfer catalysis

open access: yes, 2004
The stereoselective synthesis of the fragrance trans-magnolione (1) through conjugate Michael addition of alkyl acetoacetates to 2-pentyl-2-cyclopentenone (2) under solid/liquid phase transfer catalysis (PTC) is reported.
SUPERCHI, Stefano   +5 more
core   +1 more source

THE MECHANISM OF ACETOACETATE SYNTHESIS

open access: yesJournal of Biological Chemistry, 1951
E R, STADTMAN, M, DOUDOROFF, F, LIPMANN
openaire   +2 more sources

Synthesis of Cyclopentenones via Intramolecular HWE and the Palladium-Catalyzed Reactions of Allylic Hydroxy Phosphonate Derivatives

open access: yes, 2016
Palladium-catalyzed decarboxylative rearrangement of nonracemic phosphono allylic acetoacetates, or the intermolecular allylic substitution of nonracemic phosphono allylic carbonates with tert-butyl acetoacetate followed by hydrolysis and decarboxylation,
Bingli Yan (2429488)   +1 more
core   +1 more source

Synthesis of Physiologically Active Steroid Esters and Spirolactones

open access: yes, 1985
Some steroid hemimalonates, alkylhemimalonates and acetoacetates have been easily prepared in high yields by the reaction of hydroxysteroids with Meldrum acid, its alkyl- and acylderivatives, respectively.
George M. Segal   +5 more
core  

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