Results 31 to 40 of about 8,323 (256)

The Polymerization of Azetidines and Azetidine Derivatives [PDF]

open access: yesPolymer Journal, 1980
The cationic ring-opening polymerization of azetidine, N-alkylazetidines and a number of azetidines carrying a second functional group is reviewed. Some of these monomers lead to “living” polymers. The rate constants for the polymerization of different azetidines are discussed and compared with the rate constants for the polymerization of other four ...
E J Goethals   +4 more
openaire   +1 more source

Azetidine synthesis by La(OTf)3-catalyzed intramolecular regioselective aminolysis of cis-3,4-epoxy amines

open access: yesFrontiers in Chemistry, 2023
Azetidine is a prevalent structural motif found in various biologically active compounds. In this research paper, we report La(OTf)3-catalyzed intramolecular regioselective aminolysis of cis-3,4-epoxy amines to afford azetidines.
Yuse Kuriyama   +2 more
doaj   +1 more source

Synthesis of Azetidine-Based Beta-Amino Alcohols

open access: yesMedical Sciences Forum, 2022
Beta-amino alcohols are versatile chemicals used as scaffolds in medicinal chemistry and they are key factors for the efficacy of numerous pharmaceutical products.
Linda Supe
doaj   +1 more source

Azetidines. II. Some Functional Derivatives of Azetidines [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1967
Abstract The sodium methoxide-catalyzed cyclization of methyl α-tosylamino-γ-chlorobutyrate gave methyl 1-tosylazetidine-2-carboxylate, which was then converted to the corresponding carboxylic acid and carbinol. 1-Acetyl-2,2,4,4-tetramethylazetidine-3-carboxylic acid was prepared by the photolysis of 1-acetyl-4-diazo-2,2,5,5 ...
Teng-yueh Chen   +3 more
openaire   +1 more source

The Chemistry of Azetidines

open access: bronzeJournal of Synthetic Organic Chemistry, Japan, 1972
Katsutada Masuda
openaire   +3 more sources

Visible Light Photoredox-Catalyzed Decarboxylative Alkylation of 3-Aryl-Oxetanes and Azetidines via Benzylic Tertiary Radicals and Implications of Benzylic Radical Stability

open access: yesJournal of Organic Chemistry, 2023
Four-membered heterocycles offer exciting potential as small polar motifs in medicinal chemistry but require further methods for incorporation. Photoredox catalysis is a powerful method for the mild generation of alkyl radicals for C–C bond formation ...
Maryne A. J. Dubois   +10 more
semanticscholar   +1 more source

A sustainable and chemoselective continuous flow hydrogenation of functionalized 2-azetines to azetidines

open access: yesTetrahedron Green Chem, 2023
The synthesis of functionalized azetidines from azetines is poorly explored. Here, we report the safe and sustainable continuous flow hydrogenation of 2-azetines using ethyl acetate and CPME as environmentally responsible solvents.
Elena Graziano   +6 more
doaj   +1 more source

Defining stage-specific activity of potent new inhibitors of Cryptosporidium parvum growth in vitro [PDF]

open access: yes, 2020
Currently, nitazoxanide is the only FDA-approved treatment for cryptosporidiosis; unfortunately, it is ineffective in immunocompromised patients, has varied efficacy in immunocompetent individuals, and is not approved in infants under 1 year of age ...
Funkhouser-Jones, Lisa J   +2 more
core   +2 more sources

Access to Azetidines via Gold Mediated Energy Transfer Photocatalysis.

open access: yesOrganic Letters, 2023
The area of energy transfer photocatalysis to generate four-membered rings is experiencing an unprecedented level of activity. Here, we report an operationally simple method toward azetidines from 2-isoxasoline-3-carboxylates and alkenes, using [Au(cbz ...
Sébastien G. Guillet   +4 more
semanticscholar   +1 more source

Synthesis of 2-Oxazolines from Ring Opening Isomerization of 3-Amido-2-Phenyl Azetidines

open access: yesMolecules, 2021
Chiral 2-oxazolines are valuable building blocks and famous ligands for asymmetric catalysis. The most common synthesis involves the reaction of an amino alcohol with a carboxylic acid.
Xin Zhou, Baiyi Mao, Zhanbin Zhang
doaj   +1 more source

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