IT1243402B - Procedimento per la preparazione dei radicali nitrosilici delle amminestericamente impedite. - Google Patents

Procedimento per la preparazione dei radicali nitrosilici delle amminestericamente impedite.

Info

Publication number
IT1243402B
IT1243402B IT02226490A IT2226490A IT1243402B IT 1243402 B IT1243402 B IT 1243402B IT 02226490 A IT02226490 A IT 02226490A IT 2226490 A IT2226490 A IT 2226490A IT 1243402 B IT1243402 B IT 1243402B
Authority
IT
Italy
Prior art keywords
nitrosilic
adminesterically
impeded
radicals
procedure
Prior art date
Application number
IT02226490A
Other languages
English (en)
Other versions
IT9022264A1 (it
IT9022264A0 (it
Inventor
Carlo Neri
Silvestro Costanzi
Rosa Maria Riva
Mariangela Angaroni
Original Assignee
Enichem Sintesi
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 Enichem Sintesi filed Critical Enichem Sintesi
Priority to IT02226490A priority Critical patent/IT1243402B/it
Publication of IT9022264A0 publication Critical patent/IT9022264A0/it
Priority to EP91120589A priority patent/EP0488403B1/en
Priority to US07/800,039 priority patent/US5218116A/en
Priority to DE69114106T priority patent/DE69114106T2/de
Publication of IT9022264A1 publication Critical patent/IT9022264A1/it
Application granted granted Critical
Publication of IT1243402B publication Critical patent/IT1243402B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/44—Iso-indoles; Hydrogenated iso-indoles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B61/00—Other general methods
    • C07B61/02—Generation of organic free radicals; Organic free radicals per se
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/46—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with hetero atoms directly attached to the ring nitrogen atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/92—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with a hetero atom directly attached to the ring nitrogen atom
    • C07D211/94—Oxygen atom, e.g. piperidine N-oxide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Hydrogenated Pyridines (AREA)
IT02226490A 1990-11-30 1990-11-30 Procedimento per la preparazione dei radicali nitrosilici delle amminestericamente impedite. IT1243402B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT02226490A IT1243402B (it) 1990-11-30 1990-11-30 Procedimento per la preparazione dei radicali nitrosilici delle amminestericamente impedite.
EP91120589A EP0488403B1 (en) 1990-11-30 1991-11-29 Process for the preparation of nitroxyl radicals of sterically hindered amines
US07/800,039 US5218116A (en) 1990-11-30 1991-11-29 Procedure for the preparation of nitroxyl radicals of sterically hindered amines
DE69114106T DE69114106T2 (de) 1990-11-30 1991-11-29 Verfahren zur Herstellung von Nitroxylradikalen von gehinderten Aminen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02226490A IT1243402B (it) 1990-11-30 1990-11-30 Procedimento per la preparazione dei radicali nitrosilici delle amminestericamente impedite.

Publications (3)

Publication Number Publication Date
IT9022264A0 IT9022264A0 (it) 1990-11-30
IT9022264A1 IT9022264A1 (it) 1992-05-30
IT1243402B true IT1243402B (it) 1994-06-10

Family

ID=11193853

Family Applications (1)

Application Number Title Priority Date Filing Date
IT02226490A IT1243402B (it) 1990-11-30 1990-11-30 Procedimento per la preparazione dei radicali nitrosilici delle amminestericamente impedite.

Country Status (4)

Country Link
US (1) US5218116A (it)
EP (1) EP0488403B1 (it)
DE (1) DE69114106T2 (it)
IT (1) IT1243402B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219459A1 (de) * 1992-06-13 1993-12-16 Huels Chemische Werke Ag Verfahren zur Herstellung von 2,2,6,6-Tetramethylpiperidin-N-oxyl und seinen in 4-Stellung substituierten Derivaten
US5728872A (en) * 1994-06-27 1998-03-17 Lutz Riemenschneider Stabilized acrylic acid compositions
US5574163A (en) * 1994-08-31 1996-11-12 Ciba-Geigy Corporation Process for the preparation of N-oxyl hindered amine esters
US5436345A (en) * 1994-09-12 1995-07-25 General Electric Company Method for making a 4-hydroxy-tetraorganopiperidinyloxy
EP0722932B1 (en) * 1995-01-23 1999-05-12 Koei Chemical Co., Ltd. Process for preparing tertiary amine-N-oxide
FR2730240A1 (fr) 1995-02-07 1996-08-09 Atochem Elf Sa Stabilisation d'un polymere par un radical libre stable
FR2730241B1 (fr) 1995-02-07 1997-02-28 Atofina Procede de fabrication d'une composition comprenant un polymere vinylaromatique et un caoutchouc par polymerisation en presence d'un radical libre stable
DE19520270A1 (de) * 1995-06-02 1996-12-05 Basf Ag Verfahren zur Herstellung von Aminoxiden
DE19622441A1 (de) * 1996-06-05 1997-12-11 Basf Ag Verfahren zum Verdichten ethylenisch ungesättigter Monomerer
WO2000039093A1 (en) * 1998-12-28 2000-07-06 Koei Chemical Co., Ltd. Process for producing organic compound having nitroxide free radical
JP4714318B2 (ja) * 1998-12-28 2011-06-29 広栄化学工業株式会社 ニトロキシド遊離基を有する有機化合物の製造方法
FR2788272B1 (fr) * 1999-01-08 2001-03-16 Atochem Elf Sa Procede de preparation de nitroxydes
FR2788270B1 (fr) * 1999-01-08 2001-03-16 Atochem Elf Sa Procede de preparation de radicaux nitroxyde beta-phosphores
WO2003043937A2 (en) * 2001-11-15 2003-05-30 Pq Holding, Inc. Method for controlling synthesis conditions during molecular sieve synthesis using combinations of quaternary ammonium hydroxides and halides
EP1375457A1 (en) * 2002-06-25 2004-01-02 Bayer Aktiengesellschaft One-pot process for the preparation of functionalized alkoxyamines
KR101290742B1 (ko) * 2010-04-21 2013-07-29 한국화학연구원 니트록실 라디칼을 함유한 고리형 2차아민 제조용 균일촉매
CN103998430A (zh) 2011-12-19 2014-08-20 罗门哈斯公司 制备n-氧基受阻胺抑制剂的改进方法
CN115974770B (zh) * 2021-10-15 2025-08-12 中国石油化工股份有限公司 制备2,2,6,6-四甲基哌啶氮氧自由基化合物的方法及反应系统和得到的产品
CN116063224B (zh) * 2021-10-29 2025-08-12 中国石油化工股份有限公司 制备哌啶氮氧自由基类化合物的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695301A (en) * 1952-12-10 1954-11-23 Univ Michigan 2-(1-methyl) pyrrolidylmethyl benzilate and salts thereof
US3534048A (en) * 1966-06-15 1970-10-13 Sankyo Co 2,2-dimethyl-4,4,6,6-tetrasubstituted-piperidine-1-oxide derivatives
GB1199351A (en) * 1968-03-06 1970-07-22 Bp Chem Int Ltd Improvements in the Preparation of Nitroxides
US4201721A (en) * 1976-10-12 1980-05-06 General Electric Company Catalytic aromatic carbonate process
US4792623A (en) * 1981-12-21 1988-12-20 The Dow Chemical Company Meta-phenylene-diamines

Also Published As

Publication number Publication date
IT9022264A1 (it) 1992-05-30
EP0488403A2 (en) 1992-06-03
DE69114106T2 (de) 1996-03-21
EP0488403B1 (en) 1995-10-25
DE69114106D1 (de) 1995-11-30
US5218116A (en) 1993-06-08
IT9022264A0 (it) 1990-11-30
EP0488403A3 (en) 1992-09-23

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Legal Events

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971113