Title:
PREPARATION OF 3-PHENOXYBENZYL 2-(4-ALKOXYPHENYL)-2- METHYLPROPYL ETHERS
Document Type and Number:
Japanese Patent JPS5973535
Kind Code:
A
Abstract:
PURPOSE: To prepare the titled substance useful as a fungicide, at a low cost, by hydrogenating 3-phenoxybenzyl 2-(4-alkoxy-3-halogenophenyl)-2-methylpropyl ethers, thereby dehalogenating the ethers.
CONSTITUTION: The objective compound of formula II can be prepared by hydrogenative dechlorination or debromination of the compound of formula I (R is lower alkyl; X1 and X2 are H or F; Y1 and Y2 are H, Cl or Br and at least one of Y1 and Y2 is Cl or Br). The hydrogenation reaction is carried out preferably in the presence of a base such as NaOH, in a medium such as water, methanol, etc., using a catalyst such as Pd-C etc. in an amount of 0.1W20wt% based on the compound of formula I , under the pressure of 5W60kg/cm2 at 80W 150°C.
Inventors:
UMEMOTO MITSUMASA
ASANO TAMOTSU
NAGATA TERUYUKI
NUMATA SATOSHI
ASANO TAMOTSU
NAGATA TERUYUKI
NUMATA SATOSHI
Application Number:
JP18220082A
Publication Date:
April 25, 1984
Filing Date:
October 19, 1982
Export Citation:
Assignee:
MITSUI TOATSU CHEMICALS
International Classes:
C07C41/24; C07C41/00; C07C43/263; C07C43/29; C07C67/00; (IPC1-7): C07C41/24; C07C43/263
Domestic Patent References:
| JPS5764632A | 1982-04-19 |