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F. L. Jonkers

Leiden University

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Featured researches published by F. L. Jonkers.

Tetrahedron Letters | 1979

Enamine synthesis by the Horner-Wittig reaction

N. L. J. M. Broekhof; F. L. Jonkers; A. Van Der Gen

Abstract Aromatic and aliphatic aldehydes can be converted into their homologous enamines by Horner-Wittig reaction with N -morpholinomethyl diphenylphosphine oxide ( 1 ).

Tetrahedron Letters | 1980

N-methyl-N-anilinomethyl diphenylphosphine oxide: a versatile reagent for the synthesis of enamines

N. L. J. M. Broekhof; F. L. Jonkers; A. Van Der Gen

Abstract Cyclic as well as acyclic ketones, both saturated and α,β-unsaturated, can be converted into their homologous enamines by Horner-Wittig reaction with N -methyl- N -anilinomethyl diphenylphosphine oxide ( 3 ).

Journal of Organic Chemistry | 1978

Synthetic applications of cyclic .alpha.-chloro ethers and thioethers. 4. Use of (thio)acetal esters as reagents for the protection of alcohols. Synthesis of 2-tetrahydrothienyl ethers

Chris G. Kruse; E. K. Poels; F. L. Jonkers; A. Van Der Gen

Recueil des Travaux Chimiques des Pays-Bas | 2010

Synthetic applications of 2-chlorotetrahydrofuran: Protection of alcohols as tetrahydro-2-furanyl (THF) ethers†

C. G. Kruse; F. L. Jonkers; V. Dert; A. Van Der Gen

Journal of Organic Chemistry | 1979

Reactions of esters with phosphorus ylides. 3. Direct conversion into branched olefins

Arnold P. Uijttewaal; F. L. Jonkers; Arne. Van der Gen

Journal of Organic Chemistry | 1978

Reactions of esters with phosphorus ylides. 2. Mechanistic aspects

Arnold P. Uijttewaal; F. L. Jonkers; Arne. Van der Gen

Tetrahedron Letters | 1975

A new reaction of phosphorus ylibs with esters direct conversion of ester- into isopropenylgroups.

Arnold P. Uijttewaal; F. L. Jonkers; A. Van Der Gen

ChemInform | 1980

N-METHYL-N-ANILINOMETHYL DIPHENYLPHOSPHINE OXIDE: A VERSATILE REAGENT FOR THE SYNTHESIS OF ENAMINES

N. L. J. M. Broekhof; F. L. Jonkers; A. Van Der Gen

ChemInform | 1979

SYNTHETIC APPLICATIONS OF 2-CHLOROTETRAHYDROFURAN: PROTECTION OF ALCOHOLS AS TETRAHYDRO-2-FURANYL (THF) ETHERS

Chris G. Kruse; F. L. Jonkers; V. Dert; A. Van Der Gen

ChemInform | 1979

ENAMINE SYNTHESIS BY THE HORNER-WITTIG REACTION

N. L. J. M. Broekhof; F. L. Jonkers; A. Van Der Gen

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A. Van Der Gen

Leiden University

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Arnold P. Uijttewaal

Leiden University

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N. L. J. M. Broekhof

Leiden University

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V. Dert

Leiden University

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Chris G. Kruse

Solvay

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C. G. Kruse

Leiden University

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