Title:
CHALCOGENOCYANATE SUPPORTED ON POLYSTYRENE, ITS PREPMATION AND ORGANIC REACTION REAGENT CONSISTING OF IT
Document Type and Number:
Japanese Patent JP3020163
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a novel polystyrene-supported chalcogenocyanate which consists of a polystyrene containing styrene units having a chalcogenocyanate group and is useful as a reaction reagent.
SOLUTION: This polystyrene-supported chalcogenocyanate has units of formula I. It is obtained by reacting a potassium chalcogenocyanate and a polystyrene containing units of formula II in a solvent. In the formulas, R1 is a bivalent hydrocarbon; R2 is a bivalent aliphatic group; Ar is an arylene; Z is a bivalent coupling group consisting of a hetero atom or carbonyl; X is a chalcogen atom; Y is a halogen; and s, t, and n are each 0 or 1. Preferably, the polystyrene containing styrene units of formula II is in the form of spherical beads of 400-200 μm (100-400 mesh). A corresponding nucleophilic chalcogen reagent is obtained by reacting a reducing agent such as lithium borohydride or the like in a solvent such as tetrahydrofuran or the like.
Inventors:
Fujita, Kenichi
Taguchi, Yoichi
Oishi, Akihiro
Ikeda, Yoshikazu
Taguchi, Yoichi
Oishi, Akihiro
Ikeda, Yoshikazu
Application Number:
JP1999000059825
Publication Date:
January 14, 2000
Filing Date:
March 08, 1999
Export Citation:
Assignee:
AGENCY OF IND SCIENCE & TECHNOL
International Classes:
C07B61/00; C08F8/30; C08F12/14; (IPC1-7): C08F8/30; C08F12/14
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