Title:
PREPARATION OF 5-HALOMETHYLFURFURAL
Document Type and Number:
Japanese Patent JPS5879988
Kind Code:
A
Abstract:
PURPOSE: To obtain a 5-halomethylfurfural useful as an intermediate for medicines, agricultural chemicals, etc. in high yield and selectivity, by decomposing a saccharide with an acid in a system of water, an organic solvent and magnesium halide.
CONSTITUTION: A saccharide, e.g. a monosaccharide or disaccharide, is decomposed with an acid, e.g. hydrochloric acid, in an equivalent amount of 1W6 times, based on one equivalent saccharide, in a system of water, 1W50pts.wt., based on one pts.wt. saccharide, organic solvent, e.g. toluene, inert to the reaction and 0.5W4mol, based on one mol saccharide, magnesium halide and if necessary a surfactant as a catalyst to give the aimed compound of the formulaI(X is Cl, Br or I).
Inventors:
HAMADA KAZUHIKO
YOSHIHARA HIROSHI
SUZUKAMO TAKEO
YOSHIHARA HIROSHI
SUZUKAMO TAKEO
Application Number:
JP17850881A
Publication Date:
May 13, 1983
Filing Date:
November 06, 1981
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO
International Classes:
B01J27/00; B01J31/00; C07B61/00; C07D307/46; (IPC1-7): B01J27/10; C07D307/46
Attorney, Agent or Firm:
Kimura Katsuya