J
J. F. Arens
Researcher at Utrecht University
Publications - 49
Citations - 1713
J. F. Arens is an academic researcher from Utrecht University. The author has contributed to research in topics: Alkyl & Alkylation. The author has an hindex of 15, co-authored 49 publications receiving 1708 citations. Previous affiliations of J. F. Arens include University of Groningen.
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Preparation, metallation and alkylation of allenyl ethers
TL;DR: Propargyl ethers HCCCH2OR [R = alkyl or-CH(CH8)(OC2H5)] have been isomerized with good yields into the corresponding allenyl ether's CH2CCHOR by warming with potassium tert-butoxide at 70°.
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A note on the preparation of chloro‐dialkylphosphines
W. Voskuil,J. F. Arens +1 more
TL;DR: Chloro-dialkylphosphines, R2PCl (R = branched primary, secondary or tertiary alkyl group), can be easily prepared from phosphorus trichloride and alkylsmagnesium chlorides in ether as mentioned in this paper.
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Cleavage of the carbon‐silicon bond in 1‐alkynylsilanes by silver nitrate: Protection of a terminal triple bond in hydrogenation reactions with the trimethylsilyl group
H. M. Schmidt,J. F. Arens +1 more
TL;DR: It is possible to reduce nonterminal triple bonds in poly-ynes selectively when the terminal triple bonds are previously protected silylation as mentioned in this paper, and after the reduction can be easily effected with aqueous alcoholic silver nitrate.
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Syntheses with metallated thioacetals and orthothioformates
A. Fröling,J. F. Arens +1 more
TL;DR: The results of the reactions are summarized in Tables I-VI, VIII, and IX in this article, where the authors attributed the easy metallation of the thiocompounds to d-orbital participation of sulphur, which probably lowers the activation energy of the reaction and enhances the stability of the carbanions.
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Chemistry of acetylenic ethers, 67: Allenyl thioethers from alkynyl thioethers
TL;DR: In this paper, the isomeric allenyl thioethers, III, were obtained in good yield by treating 1-ethylthio-1-alkynes, I, with an equivalent amount of sodamide in liquid ammonia, followed by hydrolysis of the reaction mixture.