CA998067A - Process for the preparation of m- and p- phenylenediamine from isophthalic or terephthalic acid diamide - Google Patents

Process for the preparation of m- and p- phenylenediamine from isophthalic or terephthalic acid diamide

Info

Publication number
CA998067A
CA998067A CA167,344A CA167344A CA998067A CA 998067 A CA998067 A CA 998067A CA 167344 A CA167344 A CA 167344A CA 998067 A CA998067 A CA 998067A
Authority
CA
Canada
Prior art keywords
phenylenediamine
isophthalic
preparation
terephthalic acid
acid diamide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA167,344A
Other versions
CA167344S (en
Inventor
Hans G. Zengel
Manfred Bergfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzona Inc
Original Assignee
Akzona Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akzona Inc filed Critical Akzona Inc
Application granted granted Critical
Publication of CA998067A publication Critical patent/CA998067A/en
Expired legal-status Critical Current

Links

CA167,344A 1972-04-01 1973-03-28 Process for the preparation of m- and p- phenylenediamine from isophthalic or terephthalic acid diamide Expired CA998067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722216115 DE2216115C3 (en) 1972-04-01 1972-04-01 Process for the preparation of m- and p-phenylenediamine

Publications (1)

Publication Number Publication Date
CA998067A true CA998067A (en) 1976-10-05

Family

ID=5840930

Family Applications (1)

Application Number Title Priority Date Filing Date
CA167,344A Expired CA998067A (en) 1972-04-01 1973-03-28 Process for the preparation of m- and p- phenylenediamine from isophthalic or terephthalic acid diamide

Country Status (13)

Country Link
JP (1) JPS5761021B2 (en)
AT (1) AT321268B (en)
BE (1) BE797559A (en)
CA (1) CA998067A (en)
CH (1) CH582128A5 (en)
DD (1) DD106637A5 (en)
DE (1) DE2216115C3 (en)
ES (1) ES413226A1 (en)
FR (1) FR2178976B1 (en)
GB (1) GB1364229A (en)
IT (1) IT988136B (en)
NL (1) NL7304529A (en)
SU (1) SU504477A3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2449983C1 (en) * 2010-12-23 2012-05-10 Открытое акционерное общество "Каустик" (ОАО "Каустик") METHOD OF PRODUCING n-PHENYLENEDIAMINE
WO2021002205A1 (en) * 2019-07-02 2021-01-07 Dic株式会社 Liquid crystal composition and liquid crystal display element
CN110437080A (en) * 2019-08-13 2019-11-12 上海哈峰新材料科技有限公司 The preparation method of m-phenylene diamine (MPD)
CN111440074A (en) * 2020-03-24 2020-07-24 深圳有为技术控股集团有限公司 Hofmann rearrangement method for preparing m-phenylenediamine
CN112174828B (en) * 2020-10-29 2022-01-07 山东兴强化工产业技术研究院有限公司 Method for preparing m-phenylenediamine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL272148A (en) * 1960-12-07

Also Published As

Publication number Publication date
JPS4913125A (en) 1974-02-05
ES413226A1 (en) 1976-01-01
FR2178976B1 (en) 1976-05-21
JPS5761021B2 (en) 1982-12-22
GB1364229A (en) 1974-08-21
DE2216115B2 (en) 1979-05-03
DE2216115C3 (en) 1980-01-17
SU504477A3 (en) 1976-02-25
AT321268B (en) 1975-03-25
CH582128A5 (en) 1976-11-30
IT988136B (en) 1975-04-10
BE797559A (en) 1973-07-16
DD106637A5 (en) 1974-06-20
NL7304529A (en) 1973-10-03
DE2216115A1 (en) 1973-10-04
FR2178976A1 (en) 1973-11-16

Similar Documents

Publication Publication Date Title
NL176264C (en) PROCESS FOR THE PREPARATION OF MALINIC ACID ANHYDRIDE.
NL185621C (en) PROCESS FOR THE PREPARATION OF MALINIC ACID ANHYDRIDE.
SE404199B (en) PROCEDURE FOR THE MANUFACTURE OF AQUATIC METAL PROCESSING VESSELS CONTAINING AMIDOCARBONIC ACIDS
AU6665174A (en) A process for the preparation of m- and p-phenylene diamine
CA1025884A (en) Process for the preparation of m- and p-phenylene diamine
CA922730A (en) Process for the preparation of terephthalic acid dimethyl ester
CA998067A (en) Process for the preparation of m- and p- phenylenediamine from isophthalic or terephthalic acid diamide
NL7507668A (en) PROCESS FOR THE PREPARATION OF CARBONIC ACIDS.
AU472525B2 (en) Process for the production of dimethyl ester of terephthalic acid
CA983518A (en) Process for the preparation of terephthalic acid
CA1011762A (en) Process for the preparation of terephthalic acid
CA998064A (en) Process for the preparation of terephthalic acid diamide
YU224772A (en) Continuous process for the recuperation of phthalic acid anhydride by means of condensation in the solid state
CA1002064A (en) Process for the preparation of 4-chloro-naphthalic acid anhydride
CA1022186A (en) Process for directly obtaining the calcium and magnesium salts of the n-acetyl-amino-6-hexanoic acid from acetyl-caprolactame
ZA746736B (en) Process for the preparation of etherpolycarboxylic acids
NL180506C (en) PROCESS FOR THE PREPARATION OF CARBONIC ACID ESTERS.
CA985701A (en) Process for monoammonium terephthalate and terephthalic acid
CA1013753A (en) Process for the preparation of 4-bromonaphthalic acid anhydride
CA988941A (en) Process for the preparation of magnesium salts of acylamino-carboxylic acids
NL167964C (en) PROCESS FOR THE PREPARATION OF MALINIC ACID ANHYDRIDE.
CA998068A (en) Process for the preparation of p-phenylenediamine
CH613944A5 (en) Process for the preparation of trifluoromethylarylsulphonic acids, -sulphonamides and -sulphones
CA873372A (en) Process for the purification of terephthalic acids
CA921931A (en) Process for the preparation of terephthalic acid dimethylester