公开(公告)号：US5922589A

公开(公告)日：1999-07-13

申请号：US108729

申请日：1998-07-01

Applicant: Robert Di Cosimo ,  Robert Donald Fallon ,  John Edward Gavagan ,  Frank Edward Herkes

Inventor： Robert Di Cosimo ,  Robert Donald Fallon ,  John Edward Gavagan ,  Frank Edward Herkes

IPC: C07C255/19 ,  C07C255/23 ,  C07D201/08 ,  C07D207/26 ,  C07D211/76 ,  C07D223/10 ,  C12N9/78 ,  C12N9/88 ,  C12P13/00 ,  C12P17/10 ,  C12N1/20 ,  C12P17/12

CPC classification number: C07D211/76 ,  C07C255/19 ,  C07C255/23 ,  C07D201/08 ,  C07D207/26 ,  C07D223/10 ,  C12N9/78 ,  C12N9/88 ,  C12P13/002 ,  C12P13/02 ,  C12P17/10 ,  C12R1/01 ,  Y02P20/52

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。

公开(公告)号：US5858736A

公开(公告)日：1999-01-12

申请号：US650073

申请日：1996-05-17

Applicant: Robert Di Cosimo ,  Robert Donald Fallon ,  John Edward Gavagan ,  Frank Edward Herkes

Inventor： Robert Di Cosimo ,  Robert Donald Fallon ,  John Edward Gavagan ,  Frank Edward Herkes

IPC: C07C255/19 ,  C07C255/23 ,  C07D201/08 ,  C07D207/26 ,  C07D211/76 ,  C07D223/10 ,  C12N9/78 ,  C12N9/88 ,  C12P13/00 ,  C12P17/10 ,  C12P17/12

CPC classification number: C07D211/76 ,  C07C255/19 ,  C07C255/23 ,  C07D201/08 ,  C07D207/26 ,  C07D223/10 ,  C12N9/78 ,  C12N9/88 ,  C12P13/002 ,  C12P13/02 ,  C12P17/10 ,  C12R1/01 ,  Y02P20/52

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。

公开(公告)号：US5814508A

公开(公告)日：1998-09-29

申请号：US910260

申请日：1997-08-13

Applicant: Robert Di Cosimo ,  Robert Donald Fallon ,  John Edward Gavagan ,  Frank Edward Herkes

Inventor： Robert Di Cosimo ,  Robert Donald Fallon ,  John Edward Gavagan ,  Frank Edward Herkes

IPC: C07C255/19 ,  C07C255/23 ,  C07D201/08 ,  C07D207/26 ,  C07D211/76 ,  C07D223/10 ,  C12N9/78 ,  C12N9/88 ,  C12P13/00 ,  C12P17/10 ,  C12P17/12

CPC classification number: C07D211/76 ,  C07C255/19 ,  C07C255/23 ,  C07D201/08 ,  C07D207/26 ,  C07D223/10 ,  C12N9/78 ,  C12N9/88 ,  C12P13/002 ,  C12P13/02 ,  C12P17/10 ,  C12R1/01 ,  Y02P20/52

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。