METHOD FOR PRODUCING 2-SUBSTITUTED CARBOXYLIC ACIDS
    13.
    发明申请
    METHOD FOR PRODUCING 2-SUBSTITUTED CARBOXYLIC ACIDS 审中-公开
    用于生产2-取代的羧酸

    公开(公告)号:WO2007028714A3

    公开(公告)日:2007-05-31

    申请号:PCT/EP2006065592

    申请日:2006-08-23

    CPC classification number: C07C67/03 C07C51/09 C07C67/343 C07C57/52 C07C69/65

    Abstract: The invention relates to a method for producing tertiary butyl esters that are substituted in position 2, by the alkylation of the appropriate tertiary butyl ester enolates. In addition, the invention relates to a method for producing corresponding free carboxylic acids by the acidic hydrolysis of the aforementioned tertiary butyl esters and their conversion into additional carboxylic acid esters.

    Abstract translation: 本发明涉及一种用于由相应的叔丁基酯烯醇化物烷基化的叔丁基酯的2-位制备取代的方法。 本发明还涉及一种通过上述叔丁基酯的酸水解和其转化为其它的羧酸酯制备的ENT-发言游离羧酸的过程。

    METHOD FOR ISOLATING POLYMETHYL ALKANOIC ACIDS AND FOR THE DISPOSAL OF THE RESULTING WASTES
    14.
    发明申请
    METHOD FOR ISOLATING POLYMETHYL ALKANOIC ACIDS AND FOR THE DISPOSAL OF THE RESULTING WASTES 审中-公开
    法分离polymethylolalkanoic和废物流的处置方法那里发生

    公开(公告)号:WO0190040A3

    公开(公告)日:2002-05-23

    申请号:PCT/EP0105816

    申请日:2001-05-21

    CPC classification number: C07C51/43 C07C51/285 C07C51/47 C07C59/105

    Abstract: The invention relates to a method for isolating poly- or monomethyl alkanoic acids of the general formula (I), wherein R is the same or different and represents a substituted or unsubstituted hydrocarbon or a methylol group that is produced from the corresponding polymethylol alkanals or monomethylol alkanals of the general formula (II), wherein R has the meaning indicated above, by oxidation with an aqueous solution of hydrogen peroxide. The method further comprises the following steps: a) crystallization, followed by solid/liquid separation (B), thereby obtaining the acid as the first crystallized product (2a) and a mother liquor (3), b) producing in the mother liquor (3) another crystallized product (2b), and removing the resulting mother liquor (3) in another solid/liquid separation (C) from the crystallized product (2b), and c) disposing of the resulting acid-depleted mother liquor (3).

    Abstract translation: 本发明涉及一种用于聚分离的方法或monomethylolalkanoic通式(I)其中R是相同或不同的,并且是一个sustituierten或未取代烃基,或从相应的Polymethylolalkanalen羟甲基或monomethylolalkanals通式(II), 其中R具有上文所示的含义,由Oxdation制备与过氧化氢的水溶液,并且其中(a)一种结晶,接着进行固/液分离(B)中进行,并从该酸作为第一作物(2a)的 并且还母液得到(3),(b)在母液(3)还晶体(2b)中产生,并在进一步结晶(2b的另一个固/液分离(C)所得到的母液(3) )被分离,并且这样得到的,酸耗尽母液(3)设置。

    Method of producing alkane sulfonic acid

    公开(公告)号:IN207425B

    公开(公告)日:2007-06-29

    申请号:IN725CH2001

    申请日:2001-05-25

    Applicant: BASF AG

    Abstract: The invention relates to a process for the prepartaion of alkanesulfonic acids, comprising the following steps:(a) oxidation of alkylmercaptans and/or dialkyl disulfides and/or dialkyl polysulfides having from three to nine sulfur atoms with nitric acid to form alkanesulfonic acids, water, nitrogen oxides and other byproducts,(b) regeneration of the nitrogen oxides obtained from step (a) with oxygen to give nitric acid and recycling of the nitric acid to step (a),where steps (a) and (b) are carried out in reaction chambers separate from one another.

    New diarylphenoxy-aluminum compound, obtained by a reaction of bis(diarylphenol) ligand with aluminum compound and/or aluminum compound, useful as a catalyst

    公开(公告)号:DE102005044518A1

    公开(公告)日:2007-03-22

    申请号:DE102005044518

    申请日:2005-09-16

    Applicant: BASF AG

    Abstract: Diarylphenoxy-aluminum compound (A), obtained by a reaction of bis(diarylphenol) ligand (I) with aluminum compound (II) and/or aluminum compound (III), is new. Diarylphenoxy-aluminum compound, obtained by a reaction of bis(diarylphenol) ligand of formula (I) with aluminum compound (II) of formula ((R 14>) 3-pAlH p) and/or aluminum compound (III) of formula (MAlH 4), is new. T : 1-6C-alkyl, 1-6C-perfluoroalkyl, 1-6C-alkoxy, 7-12C-aralkyl, halo, optionally substituted 6-10C-aryl or NO 2; Ar 1>-Ar 4>6-15C aryl or 2-15C heteroaryl (optionally substituted by 1-7 substitutions of T, SiR 5>aR 6>aR 7>a, NR 8>aR 9>a or SR 1>0a); either R 1>-R 4>H, T, SiR 5>bR 6>bR 7>b, NR 8>bR 9>b or SR 1>0b; or A+R 1>-R4 : aromatic or non-aromatic cycle; D : O, S, NR 11>, C(O), S(O) and/or S(O) 2; A : 1-25C-hydrocarbon, heteroatom of D, T, 1-10C-acyloxy, SiR 5>cR 6>cR 7>c, 2-10C-heteroaryl, NR 8>cR 9>c, SR 1>0c, 1-12-acyl, 1-10C-carboxyl, 6-15C-aryl or 2-15C-hereroaryl optionally substituted by 1-5 substitutions of T, SiR 5>dR 6>dR 7>d, NR 8>dR 9>d, SR 10>d, heteroatom of D, P(R 11>), (R 11>)P(O) or Si(R 12>R 13>); R 5>a-R 5>d, R 6>a-R 6>d, R 7>a-R 7>d, R 10>a-R 10>d, R 11>-R 13>, R 11>a : 1-6C-alkyl, 7-12C-aralkyl and/or optionally substituted 6-10C-aryl; either R 8>a-R 8>d, R 9>a-R 9>d : 1-6C-alkyl, 7-12C-aralkyl and/or optionally substituted 6-10C-aryl; or R 8>aR 9>a, R 8>bR 9>b, R 8>cR 9>c, R 8>dR 9>d : 2-8C cyclic hydrocarbon containing one or more hetero atoms of O, S or NR 11>a; Al : aluminum; R 14>1-5C-alkyl; p : 0-3; and M : Li, Na or K. Independent claims are included for: (1) a preparation of isopulegol (IV) comprising cyclization of citronellal (V) in the presence of (I) as a catalyst; and (2) a method for preparing menthol comprising preparing (IV) and subsequently hydrogenating the ethylenic double bonds in (IV). [Image].

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