ES368537A1 - Procedure for the preparation of octahydro - 1,2,4 - metanopentalenil- (5) -exo-isocianate. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the preparation of octahydro - 1,2,4 - metanopentalenil- (5) -exo-isocianate. (Machine-translation by Google Translate, not legally binding)

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Publication number
ES368537A1
ES368537A1 ES368537A ES368537A ES368537A1 ES 368537 A1 ES368537 A1 ES 368537A1 ES 368537 A ES368537 A ES 368537A ES 368537 A ES368537 A ES 368537A ES 368537 A1 ES368537 A1 ES 368537A1
Authority
ES
Spain
Prior art keywords
octahydro
exo
acid
beta
carboxylic acid
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
ES368537A
Other languages
Spanish (es)
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.)
Novartis AG
Original Assignee
JR Geigy AG
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 JR Geigy AG filed Critical JR Geigy AG
Publication of ES368537A1 publication Critical patent/ES368537A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention relates to a process for the production of octahydro-1,2,4-methenopentalenyl-5-exo-isocyanate by reacting an exo-endo isomer mixture of octahydro-1,2,4-methenopentalene - 5 - carboxylic acid - lower alkoxy alkyl ester, having from 1 to 4 C atoms in the alkoxy alkyl moiety, e.g. the beta-ethoxy ethyl ester consisting essentially of exo-isomer with hydrazine to obtain the corresponding carboxylic acid-hydrazide, freeing this from endo isomer by recrystallization from lower halo-alkanes, having from 1 to 4 C atoms, e.g. 1,2-dichloroethane, converting the acid hydrazide thus purified with nitrous acid in the acid azide and decomposing this with heat. In an example hydrazine hydrate is reacted with octahydro-1,2,4-methenopentalene - 5 - carboxylic acid - beta - ethoxyethyl ester to produce the crude hydrazide which is purified and reacted with sodium nitride in hydrochloric acid to produce the azide which is subsequently heated to produce the required isocyanate. The starting material octahydro - 1,2,4 - methenopentalene - 5 - carboxylic acid-beta-ethoxyethyl ester may be produced by reacting acrylic acid-beta-ethoxyethyl ester with 2,5-norbornadiene. 1-(p-Tolylsulphonyl) - 3 - [octahydro - 1,2,4 - methenopentantalenyl-(5)] urea may be obtained by reacting compounds of the invention with arylsulphonamides. The corresponding carbamic acid esters and acetyl amines can be hydrolysed to octahydro - 1,2,4 - methenpentalenyl - (5)- exo-amine.
ES368537A 1968-06-20 1969-06-19 Procedure for the preparation of octahydro - 1,2,4 - metanopentalenil- (5) -exo-isocianate. (Machine-translation by Google Translate, not legally binding) Expired ES368537A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH921368A CH498807A (en) 1968-06-20 1968-06-20 Process for the preparation of octahydro-1,2,4-methenopentalenyl- (5) -exo-isocyanate

Publications (1)

Publication Number Publication Date
ES368537A1 true ES368537A1 (en) 1971-05-01

Family

ID=4349576

Family Applications (1)

Application Number Title Priority Date Filing Date
ES368537A Expired ES368537A1 (en) 1968-06-20 1969-06-19 Procedure for the preparation of octahydro - 1,2,4 - metanopentalenil- (5) -exo-isocianate. (Machine-translation by Google Translate, not legally binding)

Country Status (16)

Country Link
AT (1) AT288347B (en)
BE (1) BE734866A (en)
BG (1) BG15558A3 (en)
BR (1) BR6909943D0 (en)
CH (1) CH498807A (en)
CS (1) CS154276B2 (en)
DE (1) DE1931181A1 (en)
DK (1) DK124025B (en)
ES (1) ES368537A1 (en)
FR (1) FR2011309A1 (en)
GB (1) GB1226446A (en)
IL (1) IL32434A (en)
NL (1) NL6909402A (en)
PL (1) PL72633B1 (en)
RO (1) RO56622A (en)
SE (1) SE358157B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0874244B1 (en) 1997-04-19 2002-01-30 LUST ANTRIEBSTECHNIK GmbH Procedure and apparatus for measuring electric currents in conductors

Also Published As

Publication number Publication date
CS154276B2 (en) 1974-03-29
GB1226446A (en) 1971-03-31
DK124025B (en) 1972-09-04
AT288347B (en) 1971-02-25
DE1931181A1 (en) 1970-01-02
BG15558A3 (en) 1972-05-20
RO56622A (en) 1974-04-29
BE734866A (en) 1969-12-19
IL32434A (en) 1973-03-30
NL6909402A (en) 1969-12-23
FR2011309A1 (en) 1970-02-27
IL32434A0 (en) 1969-08-27
PL72633B1 (en) 1974-08-30
CH498807A (en) 1970-11-15
BR6909943D0 (en) 1973-02-08
SE358157B (en) 1973-07-23

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