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    Novel phosphoric acid alkyl alkinyl ester monoamides, and process for the production thereof
    21.
    发明专利
    Novel phosphoric acid alkyl alkinyl ester monoamides, and process for the production thereof 未知

    公开(公告)号：GB898415A

    公开(公告)日：1962-06-06

    申请号：GB940560

    申请日：1960-03-17

    Applicant: BASF AG

    Inventor： BLUM DIETER WOLFGANG ,  NOTTES GUENTHER ,  PASEDACH HEINRICH

    IPC: C07F9/14 ,  C07F9/24

    Abstract: The invention comprises alkyl alkynyl phosphoramidates of formula where R1 is alkyl, cycloalkyl, aryl or aralkyl, R2 and R3 are hydrogen or alkyl, or R2 and R3 together complete a cycloaliphatic ring, R is hydrogen, alkyl, hydroxyalkyl, alkoxyalkyl, cycloalkyl, aryl, aralkyl or alkenyl and R1 is alkyl, hydroxyalkyl, alkoxyalkyl, cycloalkyl, aryl, aralkyl or alkenyl, or R and R1 together complete a heterocyclic ring. They are prepared by reacting an alkyl alkynyl phosphorochloridate of formula with a primary or secondary amine, if desired, in the presence of an acid-binding agent and/or a diluent; temperatures of -20 DEG C. to +80 DEG C. or higher are mentioned. The products are stated to be pesticides. The phosphorochloridates, which are stated to be novel, are prepared by reacting alkyl phosphorodichloridates with acetylenic alcohols, the alcohol being added in small amounts at a time.

    Improvements in the production of 2-aminopyrimidines
    24.
    发明专利
    Improvements in the production of 2-aminopyrimidines 未知

    公开(公告)号：GB750676A

    公开(公告)日：1956-06-20

    申请号：GB2122754

    申请日：1954-07-21

    Applicant: BASF AG

    Inventor： PASEDACH HEINRICH ,  SEEFELDER MATTHIAS

    Abstract: 2-Aminopyrimidines are obtained by allowing an oxidizing agent, e.g. oxides of chromium, manganese, iron or lead or the corresponding salts, to act in acid medium on a mixture of guanidine and a primary or secondary acetylene alcohol in which the acetylene group is directly attached to the carbinol group, e.g. propargyl alcohol, butine-(1)-ol-(3) or phenyl-(1)-propine-(1)-ol-(3). As acids there may be used sulphuric or phosphoric acids.

    Production of 2-hydroxy-2,3-dihydrocitral
    29.
    发明专利
    Production of 2-hydroxy-2,3-dihydrocitral 未知

    公开(公告)号：GB1065735A

    公开(公告)日：1967-04-19

    申请号：GB3122364

    申请日：1964-08-04

    Applicant: BASF AG

    Inventor： SCHNEIDER KURT ,  PASEDACH HEINRICH ,  POMMER HORST

    IPC: C07C45/60 ,  C07C47/263 ,  C07D309/06 ,  C11B9/00

    Abstract: 2 - Hydroxy - 2,3 - dihydrocitral is made by reacting a primary or secondary saturated alcohol with 2,2,6 - trimethyl - 6 - ethinyltetrahydropyran at 100-250 DEG C. in the presence of a vinylation catalyst to give the vinyl ether where R is the residue of the alcohol, which is subsequently cleared in an aqueous-acid medium, containing at least a stoichiometric amount of water, at 0-160 DEG C. to give the required compound. The vinylation step is effected in the conventional manner. Preferred alcohols are the mono- or di-hydric aliphatic alcohols having 1-6 carbon atoms which optionally contain an ether linkage. Suitable acids for the hydrolysis step are phosphoric acid, HCl, HI, H2SO4, p-toluene sulphonic acid, strongly acid ion-exchange resins and acid activated bleaching earths and Friedel-Craft catalysts, such as zinc, aluminium and titanium chlorides and boron trifluoride. 2-Hydroxy-2,3-dihydrocitral may be converted to 2-hydroxy-2,3-dihydrocitronellal by selective hydrogenation in the presence of palladium. Examples are provided.

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