THE PREPARATION OF HALOMETHYLBENZOYL CYANIDES

    公开(公告)号:CA2207002C

    公开(公告)日:2007-01-23

    申请号:CA2207002

    申请日:1995-11-14

    Applicant: BASF AG

    Abstract: A process is disclosed for preparing halogenated methyl benzoyl cyanides having the formula (I): PH-CO-CN, in which Ph stands for a phenyl rest substituted by chloromethyl or bromomethyl that may optionally carry 1-4 other rests, from halogenated methyl benzoyl chlorides having the formula (II): PH-CO-Cl. The compound having the formula (II) is reacted with a cyanide-releasing compound in the presence of a Lewis acid, optionally in an inert organic solvent or diluent, and the product obtained by this process is then isolated. The halogenated methyl benzoyl cyanides having the formula (I) are important intermediate products for the synthesis of plant protective agents.

    134.
    发明专利
    未知

    公开(公告)号:DE60120979T2

    公开(公告)日:2006-11-16

    申请号:DE60120979

    申请日:2001-07-17

    Applicant: BASF AG

    Abstract: A process for preparing 4-thioalkylbromobenzene derivatives of the formula I where: R 1 is C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 3 -C 8 -cycloalkyl, halogen, R 2 is C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, C 3 -C 8 -cycloalkyl, C 2 -C 6 -alkenyl, cyano or a heterocyclic radical, R 3 is C 1 -C 6 -alkyl, which comprises reacting a compound of the formula II, in which R 1 and R 2 are as defined above, with a dialkyl disulfide of the formula III R 3 -S-S-R 3 III in the presence of a nitrite and a catalyst in a suitable solvent is described.

    Zpusob prípravy derivátu methylamidu alfa-methoxyiminokarboxylové kyseliny a meziprodukty pro tentozpusob

    公开(公告)号:CZ297235B6

    公开(公告)日:2006-10-11

    申请号:CZ357896

    申请日:1995-05-26

    Applicant: BASF AG

    Abstract: Zpusob prípravy derivátu methylamidu .alfa.-methoxyiminokarboxylové kyseliny obecného vzorce I, kdeznamená X NO.sub.2.n., CF.sub.3.n., halogenu, C.sub.1-4.n.alkyl nebo C.sub.1-4.n.alkoxy, n celé císlo 1 az 4, pricemz skupiny symbolu X mohou být stejné nebo ruzné, pokud n znamená vetsí císlo nez 1 a Y uhlíkovou organickou skupinu, pri kterém se Pinnerovou reakcí nechává reagovat acylkyanid obecného vzorce II s alkoholem obecného vzorce ROH, jehoz teplota varu je vyssí nez 75 .degree.C, a následne se nechá reagovat Pinnerovou reakcí vytvorený ester obecného vzorce IV a) s hydroxylaminem za vzniku oximu obecného vzorce V, který se methyluje naoximether obecného vzorce VI, nebo b) s O-methylhydroxylaminem na oximether obecného vzorce VI a následne se nechá reagovat oximether obecného vzorceVI s methylaminem, pricemz jednotlivé symboly mají shora uvedený význam a R znamená zbytek alkoholu, jehoz teplota varu je vyssí nez 75 .degree.C. Dále jsou popsány meziprodukty pro tuto reakci obecných vzorcu IV A, V A a VI A, kde R.sup.1.n. znamená atom halogenu nebo OH, R znamená zbytek alkoholuR-OH, jehoz teplota varu je vyssí nez 75 .degree.C, X znamená NO.sub.2.n., CF.sub.3.n., atom halogenu, C.sub.1-4.n.alkyl nebo C.sub.1-4.n.alkoxy, n znamená celé císlo 1 az 4, pricemz skupiny symbolu X mohou být stejné nebo ruzné, pokud n je vetsí nez 1.

    137.
    发明专利
    未知

    公开(公告)号:AT336478T

    公开(公告)日:2006-09-15

    申请号:AT03785691

    申请日:2003-12-01

    Applicant: BASF AG

    Abstract: A process for preparing benzophenones of the formula I, where X may be chlorine, hydroxyl, methoxy or C 1 -C 6 -alkylcarbonyloxy, and Y may be chlorine or bromine, by reacting an acid chloride of the formula II where X and Y are as defined above with 3,4,5-trimethoxytoluene, which comprises carrying out the reaction in the presence of a) an aromatic hydrocarbon as a diluent and b) from 0.01 to 0.2 mol % of an iron catalyst, based on the acid chloride, c) at a temperature between 60° C. and the boiling point of the particular diluent.

    138.
    发明专利
    未知

    公开(公告)号:DE60120979D1

    公开(公告)日:2006-08-03

    申请号:DE60120979

    申请日:2001-07-17

    Applicant: BASF AG

    Abstract: A process for preparing 4-thioalkylbromobenzene derivatives of the formula I where: R 1 is C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 3 -C 8 -cycloalkyl, halogen, R 2 is C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, C 3 -C 8 -cycloalkyl, C 2 -C 6 -alkenyl, cyano or a heterocyclic radical, R 3 is C 1 -C 6 -alkyl, which comprises reacting a compound of the formula II, in which R 1 and R 2 are as defined above, with a dialkyl disulfide of the formula III R 3 -S-S-R 3 III in the presence of a nitrite and a catalyst in a suitable solvent is described.

    Bifunctional phenyliso(thio)cyanates; method and intermediate products for the production thereof

    公开(公告)号:ZA200504331B

    公开(公告)日:2006-07-26

    申请号:ZA200504331

    申请日:2005-05-27

    Applicant: BASF AG

    Abstract: Bifunctional phenyl iso(thio)cyanate derivatives (I) are new. Also new are aniline and nitrobenzene derivative intermediates (II) and (V). Bifunctional phenyl iso(thio)cyanate derivatives of formula W=C=N-Ar-CO-NH-SO 2-A (I) are new. W : O or S; Ar : phenylene (optionally substituted by one or more of halo, 1-4C haloalkyl and CN), and A : NH 2 or the residue of a primary or secondary amine. Independent claims are also included for: (a) preparation of (I); (b) new aniline and nitrobenzene derivative intermediates of formulae H 2N-Ar-CO-NH-SO 2-A (II) and O 2N-Ar-CO-NH-SO 2-A (V), and (c) preparation of 4-(sulfamidocarbonyl-phenyl)-1,2,4-triazolinedione derivatives of formula (VI) by reacting an ester of diaza-ester of formula R 4>-NH-NR 3>-C(W')OR' (VII) and cyclizing the obtained urea derivative of formula R'O-C(=W')-N(R 3>)-N(R 4>)-C(=W)-NH-Ar-CO-NH-SO 2-A (VIII). [Image] W' : O or S; R 3>, R 4> : H, CN, NH 2, 1-6C alkyl, 1-6C haloalkyl, 1-6C alkoxy, 1-6C haloalkoxy, 3-7C cycloalkyl, 2-6C alkenyl, 2-6C haloalkenyl, 3-6C alkynyl, benzyl, OR 5> or (1-3C) cyanoalkyl, or R 3> + R 4> : a group completing 4-7 membered heterocyclyl optionally interrupted by S, O, NR 6> or N and optionally substituted by one or more of halo or 1-4C alkyl; R 5> : H, 1-6C alkyl, 1-6C haloalkyl, 3-7C cycloalkyl, 2-6C alkenyl, 3-6C alkynyl, optionally substituted phenyl or optionally substituted benzyl; R 6> : H, 1-6C alkyl, 3-6C alkenyl or 3-6C alkynyl, and R' : 1-4C alkyl. ACTIVITY : Herbicide. MECHANISM OF ACTION : None given.

    140.
    发明专利
    未知

    公开(公告)号:AT330936T

    公开(公告)日:2006-07-15

    申请号:AT01967194

    申请日:2001-07-17

    Applicant: BASF AG

    Abstract: A process for preparing 4-thioalkylbromobenzene derivatives of the formula I where: R 1 is C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, C 3 -C 8 -cycloalkyl, halogen, R 2 is C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, C 3 -C 8 -cycloalkyl, C 2 -C 6 -alkenyl, cyano or a heterocyclic radical, R 3 is C 1 -C 6 -alkyl, which comprises reacting a compound of the formula II, in which R 1 and R 2 are as defined above, with a dialkyl disulfide of the formula III R 3 -S-S-R 3 III in the presence of a nitrite and a catalyst in a suitable solvent is described.

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