公开(公告)号：EP0111310A1

公开(公告)日：1984-06-20

申请号：EP83112319.5

申请日：1983-12-07

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Burks, William Millard, Jr.

IPC: C07C21/06 ,  C07C17/34 ,  C07C19/045 ,  C07C17/38

CPC classification number: C07C17/25 ,  B01J2219/00006 ,  C07C17/383 ,  C07C21/06 ,  C07C19/045

Abstract: The energy requirements for preparing vinyl chloride monomer can be reduced by a process which includes the steps of purifying by distillation ethylene dichloride, compressing the ethylene dichloride vapor from the distillation column to a temperature and pressure sufficient for direct feed to a pyrolysis furnace. Up to 80% of the heat presently used after distillation and before pyrolysis can be saved.

公开(公告)号：EP0045088B1

公开(公告)日：1984-06-20

申请号：EP81105930.2

申请日：1981-07-27

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Felix, Raymond Anthony

IPC: C07C121/66 ,  C07C120/00 ,  C07C87/30

CPC classification number: C07C255/00

公开(公告)号：EP0050841B1

公开(公告)日：1984-05-02

申请号：EP81108707.1

申请日：1981-10-22

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Skrzec, Adam Edward

IPC: C07F9/52

CPC classification number: C07F9/52

公开(公告)号：EP0083921A3

公开(公告)日：1984-04-25

申请号：EP83100007

申请日：1983-01-03

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Wong, Rayman Young

IPC: C07D213/30 ,  A01N43/40

CPC classification number: C07D213/30 ,  A01N47/06 ,  Y10S514/919

Abstract: The invention relates to novel compounds having the formula
in which R is alkyl, cycloalkyl, aralkyl, chlorophenyl or chlorbenzyl, R 1 is hydrogen or lower alkyl and n is an integer from 1 to 3. Said thiocarbonates are available by reacting the corresponding pyridyl alkanole with a chlorothioformate having the formula
at 0 - 25°C in the presence of a solvent and a hydrogen chloride acceptor. The thiocarbonates of the above formula show significant insect repellent activity. They are adapted for ready use in corresponding compositions.

公开(公告)号：EP0105262A1

公开(公告)日：1984-04-18

申请号：EP82901998.0

申请日：1982-04-23

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： LARGE, George Blackmore ,  BUREN, Lawrence, Lamont

IPC: A01N57 ,  C07F9

CPC classification number: A01N57/20 ,  C07F9/3813

Abstract: Sels d'ammonium tétra-substitués de N-phosphonométhylglycine correspondant à la formule (I), où R1, R2, R3 et R4 sont sélectionnés individuellement dans le groupe se composant d'alkyl possédant de 1 à 20 atomes de carbone, d'alkényl possédant de 2 à 6 atomes de carbone, d'hydroxyalkyl possédant de 1 à 4 atomes de carbone, de phényl et de phényl substitué où le substituant est un alkyl possédant de 1 à 4 atomes de carbone, ou un halogène. Ces sels sont utiles en tant qu'herbicides et en tant que produits de régulation de la croissance des plantes.

公开(公告)号：EP0090262A3

公开(公告)日：1984-03-28

申请号：EP83102599

申请日：1983-03-16

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Michaely, William James ,  Kraatz, Gary Wayne

IPC: C07C49/813 ,  C07C49/84 ,  C07C79/36 ,  A01N35/06

CPC classification number: C07C49/84 ,  A01N35/06 ,  C07C45/72 ,  C07C49/813 ,  C07C205/45

Abstract: Compounds having the structural formula
wherein R and R' are hydrogen or C 1 -C 4 alkyl; R 2 is chlorine, bromine or iodine; R 3 is hydrogen, iodine or chlorine; and R 5 is hydrogen, halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, nitro, or trifluormethyl as herbicides.

公开(公告)号：EP0029503B1

公开(公告)日：1984-03-28

申请号：EP80106341.3

申请日：1980-10-17

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Swartz, William Ewing

IPC: A23L1/31

CPC classification number: A23C21/026 ,  A23L13/424 ,  A23L13/45 ,  A23L27/24

公开(公告)号：EP0098159A3

公开(公告)日：1984-03-21

申请号：EP83303749

申请日：1983-06-29

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Subramanian, N.

IPC: C07F09/38 ,  C07F09/40

CPC classification number: C07F9/4006 ,  C07F9/3813

Abstract: A process for the preparation of N-phosphonomethylglycine characterised in that it comprises:
(a) reacting formaldehyde with formamide at a pH of between 9 and 10 to form N-(hydroxymethyl)formamide; (b) reacting N-(hydroxymethyll formamide with triethyl phosphite to form diethyl, N-(formyl)aminomethylphosphonate: (c) reacting diethyl, N-(formyllaminomethylphos- phonate with methylchloroacetate to form N-(diethyl- phosphonomethyl), N-(formyl)glycinemethyl ester; and (d) reacting N-(diethylphosphonomethyl) N-(formyl). glycine methyl ester with a hydrolyzing agent to form N-phosphonomethylglycine is disclosed. A process for the preparation of N-phosphonomethylglycine characterised in that it comprises:
(a) reacting an aminomethylphosphonate corresponding to the following general formula:
wherein R represents formyl, acetyl, methoxycarbonyl, phenyloxycarbonyl or benzyl; and R' represents methyl, ethyl, propyl, butyl, pentyl or hexyl; with methylchloroacetate in the presence of an organic solvent and a proton- extracing base to form as an intermediate product, N-(dialkylphosphonomethyl), N-(substituted)glycinemethyl ester; and (b) reacting the N-(dialkylphosphonomethyl), N-(substituted)glycinemethyl ester with a hydrolyzing agent to cause formation of N-phosphonomethylglycine is also disclosed. Thus, the production of a valuable herbicide is improved.

公开(公告)号：EP0102694A1

公开(公告)日：1984-03-14

申请号：EP83303561.1

申请日：1983-06-21

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Wong, Rayman Young ,  Bunker, Nathan Scot

IPC: C07F9/38

CPC classification number: C07F9/650958 ,  C07F9/3813

Abstract: A method for the production of N-phosphonomethylglycine is disclosed which comprises the steps of:

(1) first reacting 2,5-diketopiperazine with p-form- aidehyde, then adding substituted phosphorus compound, all in the presence of a low molecular weight carboxylic acid solvent, to form an intermediate bisphosphonomethyl-2,5-diketopiperazine compound,
(2) isolating said intermediate compound,
(3) subsequently reacting said intermediate bisphosphonomethyl-2,5-diketopiperazine compound with a hydrolyzing agent: and,
(4) thereafter acidifying said reactants with a mineral acid to form the end product, N-phosphonomethylglycine.

公开(公告)号：EP0072884A3

公开(公告)日：1984-02-22

申请号：EP82100272

申请日：1982-01-15

Applicant: STAUFFER CHEMICAL COMPANY

Inventor： Gless, Richard Douglas, Jr.

IPC: C07C103/34 ,  C07C102/06 ,  C01F07/48 ,  C01G25/04 ,  C01G23/02

CPC classification number: C07C231/02

Abstract: Amides having the formula
in which R is α-halo-C 1 -C 8 -alkyl; R 2 is C 1 -C 8 alkyl, and R 3 is C 1 -C 8 alkyl, are prepared by reacting an ester with an amine in the presence of a promoter which is a halide of a Group IIIa metal having a molecular weight of 26 or greater, or of a Group IVb metal. The process is particularly suitable for production of a desired optical isomer of such an amide.

Abstract translation: 具有式RCONR2R3的酰胺，其中R是α-卤代-C 1 -C 8 - 烷基; R2是C1-C8烷基，R3是C1-C8烷基，是通过使酯与胺在助催化剂存在下制备的，助催化剂是分子量为26或更大的IIIa族金属的卤化物，或者是 一组IVb金属。 该方法特别适用于制备所需的这种酰胺的光学异构体。