51.
    发明专利
    未知

    公开(公告)号:BR9307802A

    公开(公告)日:1995-11-14

    申请号:BR9307802

    申请日:1993-12-17

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/03597 Sec. 371 Date Jun. 6, 1995 Sec. 102(e) Date Jun. 6, 1995 PCT Filed Dec. 17, 1993 PCT Pub. No. WO94/14757 PCT Pub. Date Jul. 7, 1994Hydroxylamine ethers I I (where X is NO2, CN, halogen, alkyl or haloalkyl, Y is H, NO2, CN, halogen, alkyl or haloalkyl, n is 0-2 or 1-4 where Y and all radicals X are halogen and Alk is unsubstituted or substituted alkylene) and their salts with mineral acids or strong organic acids are prepared by reacting either a hydroximino compound II II (where R1 is alkyl, R2 is alkyl or alkoxy or R1+R2 form an alkylene chain) in the presence of an alkali metal hydroxide, alkali metal alcoholate, alkali metal bicarbonate or alkali metal carbonate as the base, or the corresponding anion II directly, with an alkylating agent III III (where R3 is unsubstituted or substituted alkyl or unsubstituted or substituted phenyl) to give an oximino derivative IV IV said derivative is cleaved by means of a mineral acid or a strong organic acid to give the salt of I and, if desired, the latter is converted by means of a base into the free compound I. The hydroxylamine ethers I are intermediates for crop protection agents and drugs.

    PROCESS AND INTERMEDIATE PRODUCTS FOR PREPARING HYDROXYLAMINE-ETHERS AND THEIR SALTS

    公开(公告)号:HU9501904D0

    公开(公告)日:1995-08-28

    申请号:HU9501904

    申请日:1993-12-17

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/03597 Sec. 371 Date Jun. 6, 1995 Sec. 102(e) Date Jun. 6, 1995 PCT Filed Dec. 17, 1993 PCT Pub. No. WO94/14757 PCT Pub. Date Jul. 7, 1994Hydroxylamine ethers I I (where X is NO2, CN, halogen, alkyl or haloalkyl, Y is H, NO2, CN, halogen, alkyl or haloalkyl, n is 0-2 or 1-4 where Y and all radicals X are halogen and Alk is unsubstituted or substituted alkylene) and their salts with mineral acids or strong organic acids are prepared by reacting either a hydroximino compound II II (where R1 is alkyl, R2 is alkyl or alkoxy or R1+R2 form an alkylene chain) in the presence of an alkali metal hydroxide, alkali metal alcoholate, alkali metal bicarbonate or alkali metal carbonate as the base, or the corresponding anion II directly, with an alkylating agent III III (where R3 is unsubstituted or substituted alkyl or unsubstituted or substituted phenyl) to give an oximino derivative IV IV said derivative is cleaved by means of a mineral acid or a strong organic acid to give the salt of I and, if desired, the latter is converted by means of a base into the free compound I. The hydroxylamine ethers I are intermediates for crop protection agents and drugs.

    Preparation of hydroxylamine ethers and their salts and intermediates for this purpose

    公开(公告)号:ZA939719B

    公开(公告)日:1995-06-28

    申请号:ZA939719

    申请日:1993-12-28

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/03597 Sec. 371 Date Jun. 6, 1995 Sec. 102(e) Date Jun. 6, 1995 PCT Filed Dec. 17, 1993 PCT Pub. No. WO94/14757 PCT Pub. Date Jul. 7, 1994Hydroxylamine ethers I I (where X is NO2, CN, halogen, alkyl or haloalkyl, Y is H, NO2, CN, halogen, alkyl or haloalkyl, n is 0-2 or 1-4 where Y and all radicals X are halogen and Alk is unsubstituted or substituted alkylene) and their salts with mineral acids or strong organic acids are prepared by reacting either a hydroximino compound II II (where R1 is alkyl, R2 is alkyl or alkoxy or R1+R2 form an alkylene chain) in the presence of an alkali metal hydroxide, alkali metal alcoholate, alkali metal bicarbonate or alkali metal carbonate as the base, or the corresponding anion II directly, with an alkylating agent III III (where R3 is unsubstituted or substituted alkyl or unsubstituted or substituted phenyl) to give an oximino derivative IV IV said derivative is cleaved by means of a mineral acid or a strong organic acid to give the salt of I and, if desired, the latter is converted by means of a base into the free compound I. The hydroxylamine ethers I are intermediates for crop protection agents and drugs.

    PROCESS FOR THE PREPARATION OF O-SUBSTITUTED HYDROXYLAMMONIUM SALTS

    公开(公告)号:CA2168457A1

    公开(公告)日:1995-02-09

    申请号:CA2168457

    申请日:1994-07-08

    Applicant: BASF AG

    Abstract: In order to prepare O-substituted hydroxylammonium salts having formula (I): R1-CHX-O-NH2 . HL, in which L = halogen, hydrogen sulphate; X = H, alkyl R1 = possibly substituted phenyl, thienyl, furanyl, pyrrolyl or -CR2=CR3R4, in which R2, R3, R4 = H, halogen or alkyl, an acetonoxime-O-alkyl or acetonoxime-O-benzyl ether having formula (II) is reacted with water and a mineral acid H-L while the resulting acetone is continuously removed, and hydrolysis is intermittently carried out at 0-50 .degree.C and under 10-500 mbar pressure. The O-substituted hydroxylammonium salts having the formula (I) are intermediate products for plant protective agents and pharmaceuticals.

    59.
    发明专利
    未知

    公开(公告)号:AT267812T

    公开(公告)日:2004-06-15

    申请号:AT96924848

    申请日:1996-07-02

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/02891 Sec. 371 Date Jan. 8, 1998 Sec. 102(e) Date Jan. 8, 1998 PCT Filed Jul. 2, 1996 PCT Pub. No. WO97/03969 PCT Pub. Date Feb. 6, 1997N-substituted 3-hydroxypyrazoles of the formula I where R1 is unsubstituted or substituted alkyl, aryl or heteroaryl and R2, R3 is hydrogen, cyano, halogen or unsubstituted or substituted alkyl, aryl or heteroaryl, are prepared by oxidation of a corresponding pyrazolidin-3-one with atmospheric oxygen in the presence of a metal salt in an essentially pH-neutral medium.

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