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    PROCESS FOR THE PREPARATION OF PHOSPHONOUS ACID DERIVATIVES
    1.
    发明授权
    PROCESS FOR THE PREPARATION OF PHOSPHONOUS ACID DERIVATIVES 失效

    公开(公告)号：KR810001526B1

    公开(公告)日：1981-10-26

    申请号：KR780003508

    申请日：1978-11-18

    Applicant: CIBA GEIGY AG

    Inventor： BAYLIS E ,  PICKLES W

    IPC: C07F9/48

    Abstract: Peptide derivs.(I; R and R1 are same or not, H, D, lower alkyl, alkenyl, alkinyl, cycloalkyl; R2 and R3 are same or not, H, lower alkyl, cycloalkyl, aryl), useful as bactericide were prepd. by the reaction of IIA or IIIA (Z = H, aminoprotecting group) and α-aminophosphonous acid. Thus, 1.8 g 1R-1-(L-alanylamino)-ethanephosphonic acid and 1.7 g sodium bicarbonate were mixed in EtOH-H2O, and followed by addn. of hot soln. contg. 3.2 g N-hydroxysuccinimide ester of N-benzyloxy-carbonyl-L-alanyl in ethanol to give I.

    2.
    发明专利
    未知

    公开(公告)号：BR7400040D0

    公开(公告)日：1974-08-15

    申请号：BR4074

    申请日：1974-01-04

    Applicant: CIBA GEIGY AG

    Inventor： PICKLES W ,  BAYLIS E

    IPC: C22B15/00 ,  C22B3/26 ,  C22B3/32 ,  C22B3/00 ,  C07C83/08

    Abstract: A compound having the general formula IN WHICH R1 , R2, R3 and R4 may be the same or different and represent hydrogen, a straight or branched chain alkyl radical having 1 to 20 carbon atoms, an aralkyl radical having 7 to 20 carbon atoms which may be substituted by one or more alkyl groups having 1 to 4 carbon atoms, or may be of the type: WHEREIN R5 and R6 are each a hydrogen atom or a methyl group, and each R represents the others of R1, R2, R3 and R4, an alkenyl radical having 2 to 20 carbon atoms; a cycloalkyl radical having 5 to 12 carbon atoms which may be substituted by one or more alkyl groups having 1 to 4 carbon atoms; an aryl radical having 6 to 10 carbon atoms; an alkaryl radical having 7 to 12 carbon atoms; a cyclohexyl alkyl radical in which the alkyl moiety has 2 or 3 carbon atoms and the cyclohexenyl ring may contain a methyl group as substituent; an alkenyl cyclohexyl radical in which the alkenyl moiety has 2 or 3 carbon atoms and the cyclohexyl ring may also contain a methyl group as substituent; or a group -OR7 wherein R7 represents an alkyl radical having 1 to 20 carbon atoms, a cycloalkyl radical having 5 to 12 carbon atoms, optionally substituted by one or more alkyl groups having 1 to 4 carbon atoms, an aryl radical having 6 to 10 carbon atoms or an alkenyl radical having 3 to 20 carbon atoms; or any two adjacent radicals R1, R2, R3 and R4 may be joined together to form an aryl ring which may be substituted by one or more alkyl groups having 1 to 20 carbon atoms; X represents an anion; and n is the valency of X, is useful for the extraction of metals from aqueous solutions.

    HYDRAZIDE SALTS
    9.
    发明专利
    HYDRAZIDE SALTS 未知

    公开(公告)号：ZA7485B

    公开(公告)日：1974-12-24

    申请号：ZA7485

    申请日：1974-01-04

    Applicant: CIBA GEIGY AG

    Inventor： PICKLES W ,  BAYLIS E

    IPC: C22B3/32 ,  C07C109/10

    Abstract: Arom. hydrazide salts, useful over a wide pH range to extract metals are of formula (where R1, R2, R3 and R4 are each H, straight chain/branched 1-20C alkyl, 7-20C (opt. 1-4C alkyl substd.) aralkyl, (where R is H or methyl); and R3 and R4 may also be 2-20C alkenyl, 5-12C (opt. 1-4C alkyl substd.) cycloalkyl or cycloalkenyl, 6-10C aryl, 7-12C alkaryl, (methyl-substd.) cyclohexenyl, 2-3C alkenyl cyclohexyl or OR7; where R7 is 1-20C alkyl, (1-4C alkyl-substd.) 6-10C aryl, 3-20C alkenyl or aralkyl; or any two adjacent gps. of R1,R2,R3 and R4 may together form an arom. ring opt. substd. by is not 1 1-20C alkyl gps.; X is an anion; and n is its valency).

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