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Featured researches published by R. M. Schonk.


Phosphorus Sulfur and Silicon and The Related Elements | 1991

REACTIONS OF ALKENES AND ω-PHENYLALKENES WITH SULFUR TRIOXIDE; SULFONATION AND FRIEDEL-CRAFTS TYPE OF CYCLIZATION

R. M. Schonk; Bert H. Bakker; Hans Cerfontain

Abstract Reaction of alkenes with SO3 leads to the formation of β-sultones, carbyl sulfates, alkenesulfonic acids and γ-sultones, depending on the alkene structure and on the reaction conditions. The high selectivity for the cyclisation to 1,2,3,4-tetrahydronaphthalene sulfonic acid derivatives on reaction of well chosen ω-phenylalkenes with SO3 infers the occurrence of a relatively fast equilibrium between ω-phenyl-m,n- and the ω-phenyl-n,m-alkanesultone intermediate.


Recueil des Travaux Chimiques des Pays-Bas | 2010

Reactions of ω‐phenylalkenes with sulfur trioxide; sulfonation and Friedel‐Crafts type of cyclization

R. M. Schonk; Bert H. Bakker; Hans Cerfontain


Recueil des Travaux Chimiques des Pays-Bas | 2010

Reactions of methylenecycloalkanes and cycloalkylidenecycloalkanes with sulfur trioxide

R. M. Schonk; Carel W. Meijer; Bert H. Bakker; Hans Cerfontain; Stephan Zöllner; Armin de Meijere


Recueil des Travaux Chimiques des Pays-Bas | 2010

Reactions of styrene and derivatives with sulfur trioxide; characterization and chemistry of the initial products†

R. M. Schonk; Bert H. Bakker; Hans Cerfontain


Recueil des Travaux Chimiques des Pays-Bas | 2010

Reactions of β-sultones and carbyl sulfates with nucleophiles†‡

Bert H. Bakker; R. M. Schonk; Hans Cerfontain


Recueil des Travaux Chimiques des Pays-Bas | 2010

Reactions of alkenoic acids with sulfur trioxide; sulfonation and sulfo-lactonization†‡

R. M. Schonk; Bert H. Bakker; Hans Cerfontain


Recueil des Travaux Chimiques des Pays-Bas | 2010

REACTIONS OF CUMULATED AND CONJUGATED DIENES WITH SULFUR TRIOXIDE

R. M. Schonk; Bert H. Bakker; Hans Cerfontain


Recueil des Travaux Chimiques des Pays-Bas | 2010

Sulfonation of norbornene with sulfur trioxide

Bert H. Bakker; R. M. Schonk; Hans Cerfontain


Recueil des Travaux Chimiques des Pays-Bas | 2010

Intramolecular competition in Friedel-Crafts sulfocyclization of ω-(1-naphthyl)-n-alkenes and 1,7-diphenyl-3-heptene on reaction with sulfur trioxide†

R. M. Schonk; Imelda Lembeck; Bert H. Bakker; Hans Cerfontain


ChemInform | 2010

Aliphatic Sulfonation. Part 13. Reactions of Methylenecycloalkanes and Cycloalkylidenecycloalkanes with Sulfur Trioxide.

R. M. Schonk; C. W. Meijer; Bert H. Bakker; S. Zoellner; Hans Cerfontain; A. De Meijere

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C. W. Meijer

University of Amsterdam

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I. Lembeck

University of Amsterdam

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J. B. Kramer

University of Amsterdam

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S. Zoellner

University of Amsterdam

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