78.
    发明专利
    未知

    公开(公告)号:DE2711659A1

    公开(公告)日:1978-09-21

    申请号:DE2711659

    申请日:1977-03-17

    Applicant: BASF AG

    Abstract: 2,4-Dioxo-oxazolidines are manufactured by reacting aromatic amines with alpha -hydroxycarboxylic acid of the formula where R1 and R2 have the above meanings, Hal is halogen, preferably chlorine, and R4 is alkyl of 1 to 4 carbon atoms in the presence of a base, preferably at 20-120 DEG C.

    79.
    发明专利
    未知

    公开(公告)号:DE2645715A1

    公开(公告)日:1978-04-13

    申请号:DE2645715

    申请日:1976-10-09

    Applicant: BASF AG

    Abstract: Agents for preserving and ensiling animal feedstuffs and which contain one or several furan or thiophene derivatives, and the use thereof. These furan or thiophene derivatives have the general formula WHERE X denotes oxygen or sulfur, R denotes the radicals -CHO, -CN or -COOR3, or the vinylogous radicals -CH=CH-CHO, -CH=CH-C 3BOND N or -CH=CH-COOR3, R3 denoting hydrogen, a cation equivalent or alkyl of from 1 to 4 carbon atoms, and n denotes one of the integers 0, 1, 2 and 3.

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