Title:
PRODUCTION OF 2,3-DIHYDROBENZOFURAN DERIVATIVE
Document Type and Number:
Japanese Patent JPS60100566
Kind Code:
A
Abstract:
PURPOSE: To produce the titled substance in high selectivity, by contacting allyl phenyl ether with a catalyst such as silica, alumina, diatomaceous earth, magnesium oxide, etc. in vapor phase.
CONSTITUTION: The compound of formula II can be produced by the vapor- phase catalytic reaction of the compound of formula I (R is H or alkyl; X is OH, NH2, NO2, alkyl, alkoxy, OH, halogen or H) at 250W350°C. The catalyst used in the above reaction is e.g. a solid acid such as silica, silica alumina, silica magnesia, alumina, diatomaceous earth, etc., a solid base such as magnesium oxide, calcium oxide, etc., or the solid acid or base supporting a specific kind of metal (e.g. Mg, Ca, Ti, Zr, Cr, Mo, Fe, Co, etc.).
Inventors:
KITOU OIZOU
TAMURA MASAKI
IKEZAWA SEIZOU
TAMURA MASAKI
IKEZAWA SEIZOU
Application Number:
JP20826583A
Publication Date:
June 04, 1985
Filing Date:
November 08, 1983
Export Citation:
Assignee:
UBE INDUSTRIES
International Classes:
C07D307/79; B01J21/00; B01J21/04; B01J21/10; B01J21/12; B01J21/14; C07B61/00; C07D307/86; (IPC1-7): B01J21/04; B01J21/10; B01J21/12; B01J21/14; C07D307/79