PRODUCTION OF PHOSPHINYLALDEHYDE DERIVATIVE

    公开(公告)号:JPH02212496A

    公开(公告)日:1990-08-23

    申请号:JP2996489

    申请日:1989-02-10

    摘要: PURPOSE:To obtain the title compound useful as an intermediate for active ingredient compound of herbicide in a short time and in high yield by reacting a specific compound with carbon dioxide and hydrogen in the presence of a rhodium metal-containing catalyst. CONSTITUTION:A compound shown by formula I [R is lower alkyl; R is H, lower alkyl, halo-lower alkyl or (substituted) phenyl] is reacted with a mixed gas of 0.1-10mol carbon dioxide and 1mol hydrogen in the presence of 0.001-10g atom (calculated as rhodium metal based on 100mol compound shown by formula I) rhodium metal-containing catalyst (e.g. acetylacetonatobistriethylphoshite rhodium) and a promoter (e.g. triethyl phosphite) optionally in an inert solvent (e.g. benzene) under preferably normal pressure - 100kg/cm G at 20-200 deg.C to give the aimed compound shown by formula II.

    PRODUCTION OF ACETYLAMINO(HYDROXYMETHYLPHOSPHINYL) BUTYRIC ACID

    公开(公告)号:JPH0225492A

    公开(公告)日:1990-01-26

    申请号:JP17555988

    申请日:1988-07-14

    IPC分类号: A01N57/20 C07F9/30

    摘要: PURPOSE:To suppress side reaction and obtain the subject compound useful as a herbicide in high yield by reacting amino-(hydroxymethylphosphinyl)butyric acid with acetic acid anhydride in the presence of water. CONSTITUTION:A 2-amino-4-(hydroxymethylphosphinyl)butyric acid expressed by formula I is reacted with acetic acid anhydride in the presence of water, as necessary, using a solvent, such as acetic acid, dioxan or THF, preferably at 40-80 deg.C to afford the objective compound expressed by formula II.

    PRODUCTION OF PYRAZOLE CARBOXYLIC ACID ESTERS

    公开(公告)号:JPH03133961A

    公开(公告)日:1991-06-07

    申请号:JP26946789

    申请日:1989-10-17

    摘要: PURPOSE:To obtain the subject compound for intermediate or herbicide in high yield by reacting pyrazole carboxylic acid compound with alcohols with using tetraalkoxytitanate, polymer of said compound or a compound modified with polymerization as a catalyst. CONSTITUTION:Pyrazole carboxylic acid expressed by formula I [X and Y are H, halogen, nitro, cyano, COOR , NR R , COR SO2NR R or SO2R (R and R are 1-4C alkyl); A is H or 1-4C alkyl] (e.g. 2,5-dichloro-1-methyl pyrazole-4-carboxylic acid) is reacted with alcohols expressed by formula II (R is 1-4C alkyl). In said reaction, alkoxytitanate, polymer of alkoxytitanate or modified compound by polymerization (e.g., tetraisopropyltitanate) is used as a catalyst to afford pyrazole carboxylic acid esters expressed by formula III.

    2-ACYLAMINO-4-(HYDROXYALKYLPHOSPHINYL)BUTYRIC ACID SALT AND PRODUCTION THEREOF

    公开(公告)号:JPH0311087A

    公开(公告)日:1991-01-18

    申请号:JP14348889

    申请日:1989-06-06

    IPC分类号: C07F9/30

    摘要: NEW MATERIAL:The compound of formula I [R is lower (halo)alkyl; R is lower (halo)alkyl or (substituted) phenyl; M is ammonium ion, alkali metal ion or alkaline-earth metal ion]. EXAMPLE:2-Acetylamino-4-(hydroxymethyiphosphinyl)butyric acid 2-sodium salt. USE:A herbicide. PREPARATION:The objective compound can be produced by reacting a 2- acylamino-4-(alkoxyalkylphosphinyl)butyric acid derivative of formula II [R is H, lower (halo)alkyl or (substituted) phenyl; R is H or lower (halo)alkyl] with a base (e.g. sodium hydroxide).

    PRODUCTION OF ORGANOPHOSPHORUS COMPOUND

    公开(公告)号:JPH01249786A

    公开(公告)日:1989-10-05

    申请号:JP7989888

    申请日:1988-03-31

    摘要: PURPOSE:To readily obtain the subject compound useful as an intermediate for active ingredient compound for herbicide in a short time with a high yield and purity, by using a compound having halogenoethyl group directly bonded to phosphorus atom as a raw material. CONSTITUTION:A compound expressed by formula I (R is lower alkyl; R is H, lower alkyl, halogeno-lower alkyl or phenyl which may be substituted; X is halogen) is reacted with a compound expressed by the formula NH2-COR (R is alkyl or phenyl), carbon monoxide and hydrogen in the presence of a catalyst containing a metal of the group VIII of periodic table, preferably under 40-350kg/cm G reaction pressure at 40-200 deg.C reaction temperature to provide the aimed compound expressed by formula. Furthermore, as the catalyst, a cobalt carbonium compound is preferably used.