Catalytic asymmetric hydrogenation
    41.
    发明授权
    Catalytic asymmetric hydrogenation 失效
    催化不对称加氢

    公开(公告)号:US3849480A

    公开(公告)日:1974-11-19

    申请号:US17362071

    申请日:1971-08-20

    申请人: MONSANTO CO

    发明人: KNOWLES W SABACKY M

    摘要: 1. A PROCESS FOR THE ASYMMETRIC HYDROGENATION OF AN OLEFIN WHICH COMPRISES THE HYDROGENATION OF AN OLEFIN OF THE FORMULA

    R1-C(-R2)=C(-R3)-R4

    WHEREIN R1, R2, R3 AND R4 ARE EACH INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF HYDROGEN; ALKYL HAVING AT LEAST ONE AND A MACIMUM OF 12 CARBON ATOMS; SUBSTITUTED ALKYL SAID SUBSTITUTION BEING SELECTED FROM THE GROUP CONSISTING OF AMINO, HYDROXY, NITRO, THIO, CARBONYL, CARBOXYL, CARBOXYLIC ESTER, SAID ESTER GROUP HAVING A MAXIMUM OF 6 CARBON ATOMS; PHENYL; SUBSTITUTED PHENYL, SAID SUBSTITUTION BEING SELECTED FROM THE GROUP CONSISTING OF ALKYL HAVING A MAXIMUM OF 4 CARBON ATOMS, AMINO, CARBOXYL, NITRO AND CARBOXYLIC ESTER, SAID ESTER HAVING A MAXIMUM OF 4 CARBON ATOMS, AND SAID SUBSTITUTION BEING LESS THAN 3 SUBSTITUTENTS; AMINO; DIBENZYLAMINO; BENZYLAMINO; NITRO; CARBOXYL AND CARBOXYLIC ESTER, SAID ESTER HAVING A MAXIMUM OF 4 CARBON ATOMS, PROVIDED THAT, UPON HYDROGENATION, (A) THE OLEFIN IS CAPABLE OF FORMING A RACEMIC MIXTURE, AND (B) AT LEAST ONE OF THE CARBON ATOMS UNITED BY THE OLEFINIC BOND IS CAPABLE OF FORMING AN ASYMMETRIC CARBON, IN THE PRESENCE OF A CATALYST REPRESENTED BY THE FORMULA

    M1XNL3

    WHEREIN M1 IS A METAL SELECTED FROM THE GROUP CONSISTING OF RHODIUM, RUTHENIUM AND IRIDIUM; X IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, CHLORINE, FLUORINE, BROMINE AND IODINE; EACH L IS INDEPENDENTLY SELECTED FROM THE GROUP AR5R6R7, WHEREIN A IS SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS AND ARSENIC AND R5, R6 AND R7 ARE EACH INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF HYDROGEN; ALKYL HAVING AT LEAST ONE CARBON ATOM AND A MAXIMUM OF 12 CARBON ATOMS; SUBSTITUTED ALLKYL, SAID SUBSTITUTION SELECTED FROM THE GROUP CONSISTING OF AMINO, CARBONYL, PHENYL, NITRO AND ALKOXY, SAID ALKOXY HAVING A MAXIMUM OF 4 CARBON ATOMS; PHENYL; SUBSTITUTED PHENYL, SAID SUBSTITUTION SELECTED FROM THE GROUP CONSISTING OF ALKYL HAVING A MAXIMUM OF 4 CARBON ATOMS, AMINO AND NITRO, SAID SUBSTITUTION BEING LESS THAN 3 SUBSTITUENTS; CYCLOALKYL HAVING AT LEAST 3 CARBON ATOMS AND A MAXIMUM OF 6 CARBON ATOMS; PYRRYL; THIENYL; FURYL; PYRIDYL AND PIPERIDYL, PROVIDED THAT AT LEAST ONE L GROUP IS OPTICALLY ACTIVE AND N IS ONE OF THE INTEGERS ONE OR THREE.

    Process for producing compounds comprising nitrile functions
    48.
    发明授权
    Process for producing compounds comprising nitrile functions 有权
    用于生产包含腈功能的化合物的方法

    公开(公告)号:US09174207B2

    公开(公告)日:2015-11-03

    申请号:US13123721

    申请日:2009-10-05

    摘要: The present invention relates to a process for producing compounds comprising at least one nitrile function by hydrocyanation of a compound comprising at least one non-conjugated unsaturation.The invention proposes a process for producing compounds comprising at least one nitrile function by hydrocyanation of an organic compound comprising at least one non-conjugated unsaturation, comprising from 2 to 20 carbon atoms, by reaction with hydrogen cyanide in the presence of a catalytic system comprising a complex of nickel having the oxidation state of zero with at least one organophosphorus ligand chosen from the group comprising organophosphites, organophosphonites, organophosphinites and organosphosphines and a cocatalyst of the Lewis acid type.

    摘要翻译: 本发明涉及一种生产化合物的方法,该化合物包含至少一种腈官能团,通过氢化氰化化合物,所述化合物包含至少一种非共轭不饱和键。 本发明提出了一种制备包含至少一个腈官能团的化合物的方法,所述化合物包括至少一种包含至少一个含有2-20个碳原子的非共轭不饱和键的有机化合物,所述有机化合物包括2-20个碳原子,在氰化氢的存在下, 具有氧化态为零的镍与至少一种选自有机亚磷酸酯,有机亚膦酸酯,有机亚磷酸酯和有机膦的有机磷配体的络合物和路易斯酸型助催化剂。