公开(公告)号：US3567736A

公开(公告)日：1971-03-02

申请号：US3567736D

申请日：1967-12-18

Applicant: TEXACO INC

Inventor： LARKIN JOHN M ,  KREUZ KENNETH L

IPC: C07D201/08 ,  C07D27/08

CPC classification number: C07D201/08

Abstract: A METHOD FOR PREPARING A 2-PYRROLIDINONE BY CONTACTING A DINITROALCOHOL HAVING AT LEAST 5 CARBON ATOMS CORRESPONDING TO THE FORMULA:

R-C(-R1)(-NO2)-C(-R2)(-R3)-C(-R4)(-R5)-CH(-OH)-

C(-R6)(-NO2)-R7

WITH AN ACIDIC OXIDIZING AGENT AT A PH NOT EXCEEDING 4 THEREBY FORMING A 4-NITROALKANOIC ACID OF THE FORMULA:

R-C(-R1)(-NO2)-C(-R2)(-R3)-C(-R4)(-R5)-COOH

AND THEREAFTER HYDROGENATING THE 4-NITROALKANOIC ACID IN AN ALCOHOLIC MEDIUM IN THE PRESENCE OF A MINOR AMOUNT OF A MINERAL ACID AND A HYDROGENATION CATALYST PREFERABLY SELECTED FROM THE GROUPS OF PLATINUM METALS AT TEMPERATURES RANGING FROM ABOUT 20 TO 200*C. AND UNDER HYDROGEN PRESSURES OF FROM 1 TO 100 ATMOSPHERES. THE 2-PYRROLIDINONES CONTEMPLATED CORRESPOND TO THE FORMULA:

2-R,2-R1,3-R2,3-R3,4-R4,4-R5-PYRROLIDIN-5-ONE

AND ARE USEFUL AS SOLVENTS FOR POLYMERS, INSECTICIDES AND PETROLEUM PROCESSING AND SEPARATION; AS PLASTICIZERS FOR ACRYLIC POLYMERS AND COPOLYMERS; AND AS DECOLORIZING AGENTS.

公开(公告)号：US3405174A

公开(公告)日：1968-10-08

申请号：US50839265

申请日：1965-11-17

Applicant: HALCON INTERNATIONAL INC

Inventor： GERALD SUGERMAN ,  JOHN KOLLAR

IPC: C07C51/31 ,  C07C59/01 ,  C07D201/08

CPC classification number: C07D201/08 ,  C07C51/313 ,  C07C59/01

公开(公告)号：US3346567A

公开(公告)日：1967-10-10

申请号：US52088266

申请日：1966-01-17

Applicant: STAMICARBON

Inventor： WESTERVELD JAN VAN ,  SLIGCHERS GUILLAUME A T

IPC: C07D201/08

CPC classification number: C07D201/08

公开(公告)号：US3115500A

公开(公告)日：1963-12-24

申请号：US10608761

申请日：1961-04-27

Applicant: QUAKER OATS CO

Inventor： DUNLOP ANDREW P ,  EDWARD SHERMAN ,  MADDEN JOHN W

IPC: C07D201/08

CPC classification number: C07D201/08

公开(公告)号：US3000879A

公开(公告)日：1961-09-19

申请号：US3000879D

CPC classification number: C07D201/08

公开(公告)号：US2984672A

公开(公告)日：1961-05-16

申请号：US73512458

申请日：1958-05-14

Applicant: ROHM & HAAS

Inventor： BORTNICK NEWMAN M ,  FEGLEY MARIAN F

IPC: C07D201/08 ,  C07D207/34 ,  C07D207/38 ,  C07D209/34 ,  C07D209/96

CPC classification number: C07D207/38 ,  C07D201/08 ,  C07D207/34 ,  C07D209/34 ,  C07D209/96

公开(公告)号：US2825739A

公开(公告)日：1958-03-04

申请号：US37444253

申请日：1953-08-14

Applicant: BRITISH CELANESE

Inventor： JAMES ALLEN SIDNEY ,  NAPIER DREWITT JAMES GORDON

IPC: C07C205/50 ,  C07D201/08

CPC classification number: C07C201/12 ,  C07D201/08 ,  C07C205/50

公开(公告)号：US2569114A

公开(公告)日：1951-09-25

申请号：US2569114D

CPC classification number: C07D201/08 ,  C07C51/23 ,  C07D201/02

公开(公告)号：US11753372B2

公开(公告)日：2023-09-12

申请号：US17418060

申请日：2019-12-23

Applicant: AQUAFIL S.P.A. ,  GENOMATICA INC.

Inventor： Michele Cecchetto ,  Anacleto Dal Moro ,  Lauri Hannunpoika Suominen ,  Michael Japs

IPC: C07D201/08

CPC classification number: C07D201/08

Abstract: A new process for the production of epsilon caprolactam (CPL) from 6-aminocaproic acid (6-ACA) can be obtained either from traditional petro chemical processes or can be obtained from biochemical processes. With the proposed process, the reaction time for conversion of 6-aminocaproic acid to the Nylon 6 monomer is shorter and significant energy savings are possible which is advantageous for industrial scale production. The conversion of 6-aminocaproic acid to the Nylon 6 monomer runs at atmospheric pressure and in the final product epsilon caprolactam with no oligomers formation of significance is obtained.

公开(公告)号：US20190218580A1

公开(公告)日：2019-07-18

申请号：US16105845

申请日：2018-08-20

Applicant: Genomatica, Inc.

Inventor： Petronella Catharina Raemakers-Franken ,  Martin Schurmann ,  Axel Christoph Trefzer ,  Stefaan Marie Andre De Wildeman

IPC: C12P13/00 ,  C12P13/02 ,  C07D201/08 ,  C07C227/06 ,  C07D223/10

CPC classification number: C12P13/001 ,  C07C227/06 ,  C07D201/08 ,  C07D223/10 ,  C12P13/005 ,  C12P13/02 ,  C07C229/08

Abstract: The invention relates to a method for preparing 6-aminocaproic acid (hereinafter also referred to as ‘6-ACA’) using a biocatalyst. The invention further relates to a method for preparing E-caprolactam (hereafter referred to as ‘caprolactam’) by cyclising such 6-ACA. The invention further relates to a host cell, a micro-organism, or a polynucleotide which may be used in the preparation of 6-ACA or caprolactam.