Preparation of lactams from aliphatic .alpha..omega.-dinitriles
    1.
    发明授权
    Preparation of lactams from aliphatic .alpha..omega.-dinitriles 失效
    从脂肪族αω-二腈制备内酰胺

    公开(公告)号:US6077955A

    公开(公告)日:2000-06-20

    申请号:US108728

    申请日:1998-07-01

    Abstract: A process for the preparation of five-membered or six-membered ring lactams from aliphatic .alpha.,.omega.-dinitriles has been developed. In the process an aliphatic .alpha.,.omega.-dinitrile is first converted to an ammonium salt of an .omega.-nitrilecarboxylic acid in aqueous solution using a catalyst having an aliphatic nitrilase (EC 3.5.5.7) activity, or a combination of nitrile hydratase (EC 4.2.1.84) and amidase (EC 3.5.1.4) activities. The ammonium salt of the .omega.-nitrilecarboxylic acid is then converted directly to the corresponding lactam by hydrogenation in aqueous solution, without isolation of the intermediate .omega.-nitrilecarboxylic acid or .omega.-aminocarboxylic acid. When the aliphatic .alpha.,.omega.-dinitrile is also unsymmetrically substituted at the .alpha.-carbon atom, the nitrilase produces the .omega.-nitrilecarboxylic acid ammonium salt resulting from hydrolysis of the .omega.-nitrile group with greater than 98% regioselectivity, thereby producing only one of the two possible lactam products during the subsequent hydrogenation. A heat-treatment process to select for desirable regioselective nitrilase or nitrile hydratase activities while destroying undesirable activities is also provided.

    Abstract translation: 已经开发了从脂肪族α,ω-二腈制备五元或六元环内酰胺的方法。 在该方法中,使用具有脂族腈水解酶(EC 3.5.5.7)活性的催化剂或腈水合酶(EC 4.2)的组合,首先将脂族α,ω-二腈转化为ω-二硝基甲酸的铵盐 .1.84)和酰胺酶(EC 3.5.1.4)活性。 然后通过在水溶液中氢化将ω-二硝基羧酸的铵盐直接转化成相应的内酰胺,而不分离中间体ω-二硝基甲酸或ω-氨基羧酸。 当脂肪族α,ω-二腈在α-碳原子处也不对称取代时,腈水解酶产生由ω-腈基水解产生的ω-亚硝基羧酸铵盐,其具有大于98%的区域选择性,从而仅产生 在随后氢化期间两种可能的内酰胺产物。 还提供了在破坏不期望的活性的同时选择期望的区域选择性腈水解酶或腈水合酶活性的热处理方法。

    Preparation of lactams from aliphatic .alpha., .omega.-dinitriles
    2.
    发明授权
    Preparation of lactams from aliphatic .alpha., .omega.-dinitriles 失效
    从脂肪族α,ω-二腈制备内酰胺

    公开(公告)号:US5908954A

    公开(公告)日:1999-06-01

    申请号:US108445

    申请日:1998-07-01

    Abstract: A process for the preparation of five-membered or six-membered ring lactams from aliphatic .alpha.,.omega.-dinitriles has been developed. In the process an aliphatic .alpha.,.omega.-dinitrile is first converted to an ammonium salt of an .omega.-nitrile-carboxylic acid in aqueous solution using a catalyst having an aliphatic nitrilase (EC 3.5.5.7) activity, or a combination of nitrile hydratase (EC 4.2.1.84) and arnidase (EC 3.5.1.4) activities. The ammonium salt of the .omega.-nitrilecarboxylic acid is then converted directly to the corresponding lactam by hydrogenation in aqueous solution, without isolation of the intermediate .omega.-nitrilecarboxylic acid or .omega.-aminocarboxylic acid. When the aliphatic .alpha.,.omega.-dinitrile is also unsymmetrically substituted at the .alpha.-carbon atom, the nitrilase produces the .omega.-nitrilecarboxylic acid ammonium salt resulting from hydrolysis of the .omega.-nitrile group with greater than 98% regioselectivity, thereby producing only one of the two possible lactam products during the subsequent hydrogenation. A heat-treatment process to select for desirable regioselective nitrilase or nitrile hydratase activities while destroying undesirable activities is also provided.

    Abstract translation: 已经开发了从脂肪族α,ω-二腈制备五元或六元环内酰胺的方法。 在该方法中,首先使用具有脂族腈水解酶(EC 3.5.5.7)活性的催化剂或腈水合酶的组合(在水溶液中将ω-腈 - 羧酸的铵盐转化为ω-腈 - 羧酸的铵盐, EC 4.2.1.84)和arnidase(EC 3.5.1.4)活动。 然后通过在水溶液中氢化将ω-二硝基羧酸的铵盐直接转化成相应的内酰胺,而不分离中间体ω-二硝基甲酸或ω-氨基羧酸。 当脂肪族α,ω-二腈在α-碳原子处也不对称取代时,腈水解酶产生由ω-腈基水解产生的ω-亚硝基羧酸铵盐,其具有大于98%的区域选择性,从而仅产生 在随后氢化期间两种可能的内酰胺产物。 还提供了在破坏不期望的活性的同时选择期望的区域选择性腈水解酶或腈水合酶活性的热处理方法。

    Preparation of lactams from aliphatic .alpha., .omega.-dinitriles
    4.
    发明授权
    Preparation of lactams from aliphatic .alpha., .omega.-dinitriles 失效
    从脂肪族α,ω-二腈制备内酰胺

    公开(公告)号:US5936114A

    公开(公告)日:1999-08-10

    申请号:US108631

    申请日:1998-07-01

    Abstract: A process for the preparation of five-membered or six-membered ring lactams from aliphatic .alpha.,.omega.-dinitriles has been developed. In the process an aliphatic .alpha.,.omega.-dinitrile is first converted to an ammonium salt of an .omega.-nitrilecarboxylic acid in aqueous solution using a catalyst having an aliphatic nitrilase (EC 3.5.5.7) activity, or a combination of nitrile hydratase (EC 4.2.1.84) and amidase (EC 3.5.1.4) activities. The ammonium salt of the .omega.-nitrilecarboxylic acid is then converted directly to the corresponding lactam by hydrogenation in aqueous solution, without isolation of the intermediate .omega.-nitrilecarboxylic acid or .omega.-aminocarboxylic acid. When the aliphatic .alpha.,.omega.-dinitrile is also unsymmetrically substituted at the .alpha.-carbon atom, the nitrilase produces the .omega.-nitrilecarboxylic acid ammonium salt resulting from hydrolysis of the .omega.-nitrile group with greater than 98% regioselectivity, thereby producing only one of the two possible lactam products during the subsequent hydrogenation. A heat-treatment process to select for desirable regioselective nitrilase or nitrile hydratase activities while destroying undesirable activities is also provided.

    Abstract translation: 已经开发了从脂肪族α,ω-二腈制备五元或六元环内酰胺的方法。 在该方法中,使用具有脂族腈水解酶(EC 3.5.5.7)活性的催化剂或腈水合酶(EC 4.2)的组合,首先将脂族α,ω-二腈转化为ω-二硝基甲酸的铵盐 .1.84)和酰胺酶(EC 3.5.1.4)活性。 然后通过在水溶液中氢化将ω-二硝基羧酸的铵盐直接转化成相应的内酰胺,而不分离中间体ω-二硝基甲酸或ω-氨基羧酸。 当脂肪族α,ω-二腈在α-碳原子处也不对称取代时,腈水解酶产生由ω-腈基水解产生的ω-亚硝基羧酸铵盐,其具有大于98%的区域选择性,从而仅产生 在随后氢化期间两种可能的内酰胺产物。 还提供了在破坏不期望的活性的同时选择期望的区域选择性腈水解酶或腈水合酶活性的热处理方法。

    Nitrilase-producing acidovorax facilis
    6.
    发明授权
    Nitrilase-producing acidovorax facilis 失效
    生产硝酸酯的酸酵母

    公开(公告)号:US6066490A

    公开(公告)日:2000-05-23

    申请号:US987938

    申请日:1997-12-10

    Abstract: A process for the preparation of five-membered or six-membered ring lactams from aliphatic .alpha.,.omega.-dinitriles has been developed. In the process an aliphatic .alpha.,.omega.-dinitrile is first converted to an ammonium salt of an .omega.-nitrilecarboxylic acid in aqueous solution using a catalyst having an aliphatic nitrilase (EC 3.5.5.7) activity, or a combination of nitrile hydratase (EC 4.2.1.84) and amidase (EC 3.5.1.4) activities. The ammonium salt of the .omega.-nitrilecarboxylic acid is then converted directly to the corresponding lactam by hydrogenation in aqueous solution, without isolation of the intermediate .omega.-nitrilecarboxylic acid or .omega.-aminocarboxylic acid. When the aliphatic .alpha.,.omega.-dinitrile is also unsymmetrically substituted at the .alpha.-carbon atom, the nitrilase produces the .omega.-nitrilecarboxylic acid ammonium salt resulting from hydrolysis of the .omega.-nitrile group with greater than 98% regioselectivity, thereby producing only one of the two possible lactam products during the subsequent hydrogenation. A heat-treatment process to select for desirable regioselective nitrilase or nitrile hydratase activities while destroying undesirable activities is also provided.

    Abstract translation: 已经开发了从脂肪族α,ω-二腈制备五元或六元环内酰胺的方法。 在该方法中,使用具有脂族腈水解酶(EC 3.5.5.7)活性的催化剂或腈水合酶(EC 4.2)的组合,首先将脂族α,ω-二腈转化为ω-二硝基甲酸的铵盐 .1.84)和酰胺酶(EC 3.5.1.4)活性。 然后通过在水溶液中氢化将ω-二硝基羧酸的铵盐直接转化成相应的内酰胺,而不分离中间体ω-二硝基甲酸或ω-氨基羧酸。 当脂肪族α,ω-二腈在α-碳原子处也不对称取代时,腈水解酶产生由ω-腈基水解产生的ω-亚硝基羧酸铵盐,其具有大于98%的区域选择性,从而仅产生 在随后氢化期间两种可能的内酰胺产物。 还提供了在破坏不期望的活性的同时选择期望的区域选择性腈水解酶或腈水合酶活性的热处理方法。

    manufacture of certain cyclic ester oligomers
    7.
    发明授权
    manufacture of certain cyclic ester oligomers 有权
    某些环酯低聚物的制造

    公开(公告)号:US06979720B2

    公开(公告)日:2005-12-27

    申请号:US10426600

    申请日:2003-04-30

    CPC classification number: C12P17/02 C12P17/08

    Abstract: Enzymes which are capable of catalyzing esterifications and/or transesterifications such as selected lipases and esterases can, under specified conditions, convert certain lower linear oligomers of polyesters to their cyclic ester oligomers in quantities greater than would be predicted by thermodynamic calculation or prior art methods. The cyclic ester oligomers are useful for the production of higher molecular weight linear polyesters.

    Abstract translation: 能够催化酯化和/或酯交换如选择的脂肪酶和酯酶的酶可以在规定的条件下将聚酯的某些低级线性低聚物转化成其环状酯低聚物,其数量大于通过热力学计算或现有技术方法预测的量。 环酯低聚物可用于生产较高分子量的线性聚酯。

    Preparation of lactams from aliphatic .alpha.,.omega.-Dinitiles
    8.
    发明授权
    Preparation of lactams from aliphatic .alpha.,.omega.-Dinitiles 失效
    从脂肪族α,ω-二核苷酸制备内酰胺

    公开(公告)号:US5922589A

    公开(公告)日:1999-07-13

    申请号:US108729

    申请日:1998-07-01

    Abstract: A process for the preparation of five-membered or six-membered ring lactams from aliphatic .alpha., .omega.-dinitriles has been developed. In the process an aliphatic .alpha.,.omega.-dinitrile is first converted to an ammonium salt of an .omega.-nitrilecarboxylic acid in aqueous solution using a catalyst having an aliphatic nitrilase (EC 3.5.5.7) activity, or a combination of nitrile hydratase (EC 4.2.1.84) and amidase (EC 3.5.1.4) activities. The ammonium salt of the .omega.-nitrilecarboxylic acid is then converted directly to the corresponding lactam by hydrogenation in aqueous solution, without isolation of the intermediate .omega.-nitrilecarboxylic acid or .omega.-aminocarboxylic acid. When the aliphatic .alpha.,.omega.-dinitrile is also unsymmetrically substituted at the .alpha.-carbon atom, the nitrilase produces the .omega.-nitrilecarboxylic acid ammonium salt resulting from hydrolysis of the .omega.-nitrile group with greater than 98% regioselectivity, thereby producing only one of the two possible lactam products during the subsequent hydrogenation. A heat-treatment process to select for desirable regioselective nitrilase or nitrile hydratase activities while destroying undesirable activities is also provided.

    Abstract translation: 已经开发了从脂肪族α,ω-二腈制备五元或六元环内酰胺的方法。 在该方法中,使用具有脂族腈水解酶(EC 3.5.5.7)活性的催化剂或腈水合酶(EC 4.2)的组合,首先将脂族α,ω-二腈转化为ω-二硝基甲酸的铵盐 .1.84)和酰胺酶(EC 3.5.1.4)活性。 然后通过在水溶液中氢化将ω-二硝基羧酸的铵盐直接转化成相应的内酰胺,而不分离中间体ω-二硝基甲酸或ω-氨基羧酸。 当脂肪族α,ω-二腈在α-碳原子处也不对称取代时,腈水解酶产生由ω-腈基水解产生的ω-亚硝基羧酸铵盐,其具有大于98%的区域选择性,从而仅产生 在随后氢化期间两种可能的内酰胺产物。 还提供了在破坏不期望的活性的同时选择期望的区域选择性腈水解酶或腈水合酶活性的热处理方法。

    Preparation of lactams from aliphatic .alpha.,.omega.-dinitriles
    9.
    发明授权
    Preparation of lactams from aliphatic .alpha.,.omega.-dinitriles 失效
    从脂肪族α,ω-二腈制备内酰胺

    公开(公告)号:US5858736A

    公开(公告)日:1999-01-12

    申请号:US650073

    申请日:1996-05-17

    Abstract: A process for the preparation of five-membered or six-membered ring lactams from aliphatic .alpha.,.omega.-dinitriles has been developed. In the process an aliphatic .alpha.,.omega.-dinitrile is first converted to an ammonium salt of an .omega.-nitrilecarboxylic acid in aqueous solution using a catalyst having an aliphatic nitrilase (EC 3.5.5.7) activity, or a combination of nitrile hydratase (EC 4.2.1.84) and amidase (EC 3.5.1.4) activities. The aimnonium salt of the .omega.-nitrilecarboxylic acid is then converted directly to the corresponding lactam by hydrogenation in aqueous solution, without isolation of the intermediate .omega.-nitrilecarboxylic acid or .omega.-monocarboxylic acid. When the aliphatic .alpha.,.omega.-dinitrile is also unsymmetrically substituted at the .alpha.-carbon atom, the nitrilase produces the .omega.-nitrilecarboxylic acid ammonium salt resulting from hydrolysis of the .omega.-nitrile group with greater than 98% regioselectivity, thereby producing only one of the two possible lactam products during the subsequent hydrogenation. A heat-treatment process to select for desirable regioselective nitrilase or nitrile hydratase activities while destroying undesirable activities is also provided.

    Abstract translation: 已经开发了从脂肪族α,ω-二腈制备五元或六元环内酰胺的方法。 在该方法中,使用具有脂族腈水解酶(EC 3.5.5.7)活性的催化剂或腈水合酶(EC 4.2)的组合,首先将脂族α,ω-二腈转化为ω-二硝基甲酸的铵盐 .1.84)和酰胺酶(EC 3.5.1.4)活性。 然后通过在水溶液中氢化将ω-二硝基甲酸的目的盐直接转化成相应的内酰胺,而不分离中间体ω-二硝基甲酸或ω-单羧酸。 当脂肪族α,ω-二腈在α-碳原子处也不对称取代时,腈水解酶产生由ω-腈基水解产生的ω-亚硝基羧酸铵盐,其具有大于98%的区域选择性,从而仅产生 在随后氢化期间两种可能的内酰胺产物。 还提供了在破坏不期望的活性的同时选择期望的区域选择性腈水解酶或腈水合酶活性的热处理方法。

    Preparation of lactams from aliphatic .alpha.,.omega.-dinitriles
    10.
    发明授权
    Preparation of lactams from aliphatic .alpha.,.omega.-dinitriles 失效
    从脂肪族α,ω-二腈制备内酰胺

    公开(公告)号:US5814508A

    公开(公告)日:1998-09-29

    申请号:US910260

    申请日:1997-08-13

    Abstract: A process for the preparation of five-membered or six-membered ring lactams from aliphatic .alpha.,.omega.-dinitriles has been developed. In the process an aliphatic .alpha.,.omega.-dinitrile is first converted to an ammonium salt of an .omega.-nitrile-carboxylic acid in aqueous solution using a catalyst having an aliphatic nitrilase (EC 3.5.5.7) activity, or a combination of nitrile hydratase (EC 4.2.1.84) and amidase (EC 3.5.1.4) activities. The ammonium salt of the .omega.-nitrilecarboxylic acid is then converted directly to the corresponding lactam by hydrogenation in aqueous solution, without isolation of the intermediate .omega.-nitrilecarboxylic acid or .omega.-aminocarboxylic acid. When the aliphatic .alpha.,.omega.-dinitrile is also unsymmetrically substituted at the .alpha.-carbon atom, the nitrilase produces the .omega.-nitrilecarboxylic acid ammonium salt resulting from hydrolysis of the .omega.-nitrile group with greater than 98% regioselectivity, thereby producing only one of the two possible lactam products during the subsequent hydrogenation. A heat-treatment process to select for desirable regioselective nitrilase or nitrile hydratase activities while destroying undesirable activities is also provided.

    Abstract translation: 已经开发了从脂肪族α,ω-二腈制备五元或六元环内酰胺的方法。 在该方法中,首先使用具有脂族腈水解酶(EC 3.5.5.7)活性的催化剂或腈水合酶的组合(在水溶液中将ω-腈 - 羧酸的铵盐转化为ω-腈 - 羧酸的铵盐, EC 4.2.1.84)和酰胺酶(EC 3.5.1.4)活动。 然后通过在水溶液中氢化将ω-二硝基羧酸的铵盐直接转化成相应的内酰胺,而不分离中间体ω-二硝基甲酸或ω-氨基羧酸。 当脂肪族α,ω-二腈在α-碳原子处也不对称取代时,腈水解酶产生由ω-腈基水解产生的ω-亚硝基羧酸铵盐,其具有大于98%的区域选择性,从而仅产生 在随后氢化期间两种可能的内酰胺产物。 还提供了在破坏不期望的活性的同时选择期望的区域选择性腈水解酶或腈水合酶活性的热处理方法。

Patent Agency Ranking