Title:
MANUFACTURE OF CYCLOHEXANE-1,3,5-TRIONE COMPOUND
Document Type and Number:
Japanese Patent JPS63264542
Kind Code:
A
Abstract:
A process for preparing a compound of formula (I) which comprises or a salt, acylate or sulphonate derivative thereof; wherein R<1> is an optionally substituted aryl group, R<2>, R<3>, R<4> and R<5> are selected from hydrogen, C1-4 alkyl, C1-4 alkanoyl or -CO2R wherein R is C1-4 alkyl or R<2> and R<3> or R<4> and R<5> together with the carbon atom to which they are attached form a C3-6 cycloalkyl ring, provided that at least R<2> and R<3> or R<4> and R<5> are not both hydrogen and that not more than two of R<2>, R<3>, R<4> and R<5> are C1-4 alkanoyl or -CO2R; which process comprises either; a) reacting a compound of formula (II) wherein R<2>, R<3>, R<4> and R<5> are as defined in relation to formula (I) with a compound of formula (III): R<1>COCN (III) wherein R<1> is as defined in relation to formula (I) in the presence of a base and a Lewis acid; or b) reacting a compound of formula (VI) with a compound of formula (X) wherein R<1> is as hereinbefore defined, in the presence of a Lewis acid; or c) where R<2>, R<3>, R<4> and R<5> are the same, reacting a compound of formula (XI) with a compound of formula R<2>X<1> in the presence of a base, wherein X<1> is a leaving group. Certain compounds of formula (I) are novel and these and their use as herbicides form another aspect of the invention.
Inventors:
GURIN MITSUCHIERU
Application Number:
JP6374488A
Publication Date:
November 01, 1988
Filing Date:
March 18, 1988
Export Citation:
Assignee:
ICI PLC
International Classes:
A01N35/06; A01N37/08; A01N37/34; A01N37/42; A01N43/08; A01N43/10; A01N43/30; A01N43/32; A01N43/36; A01N43/38; A01N43/40; A01N43/42; A01N43/50; A01N43/56; A01N43/58; A01N43/60; A01N43/78; A01N43/80; A01N47/02; C07B61/00; C07C45/00; C07C45/45; C07C45/51; C07C45/54; C07C45/60; C07C45/67; C07C45/72; C07C49/403; C07C49/713; C07C49/782; C07C49/792; C07C49/813; C07C49/835; C07C49/84; C07C67/00; C07C201/00; C07C201/12; C07C253/00; C07C255/40; C07C301/00; C07C303/28; C07C313/00; C07C315/04; C07C317/24; C07C317/44; C07C319/20; C07C323/22; C07D207/333; C07D207/36; C07D209/12; C07D215/14; C07D215/36; C07D231/12; C07D231/16; C07D233/84; C07D237/12; C07D241/12; C07D241/16; C07D241/42; C07D261/08; C07D263/56; C07D277/24; C07D277/32; C07D277/36; C07D307/70; C07D307/71; C07D317/52; C07D317/62; C07D319/08; C07D319/18; C07D333/22; C07D333/28; C07D333/62; C07D409/04; C07D417/04; C07F9/6568; C07D207/32; (IPC1-7): A01N35/06; A01N37/34; A01N37/42; A01N47/02; C07C45/00; C07C49/782; C07C79/36; C07C121/76; C07C143/78; C07C147/06; C07C147/14; C07C149/32
Attorney, Agent or Firm:
Shigeru Yagita (2 outside)