BR9501281A - Processo para a preparação de teres dimetílicos fluorados processo para a cloração de CHF2OCH3 - Google Patents

Processo para a preparação de teres dimetílicos fluorados processo para a cloração de CHF2OCH3

Info

Publication number: BR9501281A
Authority: BR; Brazil
Prior art keywords: formula; chf2och3; cpd; chlorination; preparation
Prior art date: 1994-04-01

Application number

BR9501281A

Other languages

English (en)

Inventor

Gerald J O'neill

Robert J Bulka

Original Assignee

Hampshire Chemical Corp

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.)

1994-04-01

Filing date

1995-03-30

Publication date

1995-10-31

1995-03-30 Application filed by Hampshire Chemical Corp filed Critical Hampshire Chemical Corp

1995-10-31 Publication of BR9501281A publication Critical patent/BR9501281A/pt

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/22—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of halogens; by substitution of halogen atoms by other halogen atoms

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

BR9501281A 1994-04-01 1995-03-30 Processo para a preparação de teres dimetílicos fluorados processo para a cloração de CHF2OCH3 BR9501281A (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US08/221,498 US5446211A (en)	1994-04-01	1994-04-01	Chlorination of difluoromethyl methyl ether

Publications (1)

Publication Number	Publication Date
BR9501281A true BR9501281A (pt)	1995-10-31

Family

ID=22828074

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR9501281A BR9501281A (pt)	1994-04-01	1995-03-30	Processo para a preparação de teres dimetílicos fluorados processo para a cloração de CHF2OCH3

Country Status (14)

Country	Link
US (1)	US5446211A (pt)
EP (1)	EP0675098B1 (pt)
JP (1)	JPH07291881A (pt)
CN (1)	CN1064664C (pt)
AT (1)	ATE187427T1 (pt)
AU (1)	AU684606B2 (pt)
BR (1)	BR9501281A (pt)
CA (1)	CA2145144A1 (pt)
DE (2)	DE675098T1 (pt)
ES (1)	ES2086275T3 (pt)
GR (2)	GR960300022T1 (pt)
MY (1)	MY112143A (pt)
TW (1)	TW296369B (pt)
ZA (1)	ZA952493B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US10683252B2 (en)	2016-12-29	2020-06-16	Central Glass Company, Limited	Production method for 1,2,2,2-tetrafluoroethyl difluoromethyl ether (desflurane)
JP6974718B2 (ja) *	2017-01-13	2021-12-01	セントラル硝子株式会社	１，２，２，２−テトラフルオロエチルジフルオロメチルエーテル（デスフルラン）の製造方法
CN110139848B (zh) *	2016-12-29	2022-04-12	中央硝子株式会社	1,2,2,2-四氟乙基二氟甲醚(地氟烷)的制造方法
JP6886104B2 (ja)	2016-12-29	2021-06-16	セントラル硝子株式会社	ハロゲン化α−フルオロエーテル類の製造方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2066905A (en) *	1935-03-23	1937-01-05	Westinghouse Electric & Mfg Co	Halogenated methyl ethers
US2533132A (en) *	1944-08-30	1950-12-05	Purdue Research Foundation	Vapor phase fluorination
US3461213A (en) *	1966-10-03	1969-08-12	Air Reduction	1,1 difluoro-2,2-dichloroethyl difluoromethyl ether or an anesthetic agent
US3663715A (en) *	1969-11-03	1972-05-16	Airco Inc	Ether compounds as anesthetics
US3689459A (en) *	1970-08-10	1972-09-05	Baxter Laboratories Inc	Novel ether
CA949978A (en) *	1970-11-23	1974-06-25	Ross C. Terrell	Ether compounds
US3862241A (en) *	1971-07-02	1975-01-21	Airco Inc	1,1,2,2,tetrafluoroethyl fluoromethyl ether
US3897502A (en) *	1971-10-22	1975-07-29	Airco Inc	Process for making fluorinated ethers
US3887439A (en) *	1972-09-25	1975-06-03	Phillips Petroleum Co	Separation of fluorinated dimethyl ethers by extractive distillation
US3806602A (en) *	1972-12-11	1974-04-23	Airco Inc	Inhalant analgesic and anesthetic method and composition
US3879474A (en) *	1972-12-11	1975-04-22	Airco Inc	Inhalant analgesic and anesthetic composition
US4025567A (en) *	1973-02-15	1977-05-24	Phillips Petroleum Company	Purification of fluorinated ethers
US4113435A (en) *	1973-07-16	1978-09-12	Massachusetts Institute Of Technology	Cryogenically controlled direct fluorination apparatus
US4149018A (en) *	1975-12-05	1979-04-10	Imperial Chemical Industries Limited	Compound CHCl2 -O-CHF-CHF2
US4874901A (en) *	1988-05-06	1989-10-17	Boc, Inc.	Process for the production of polyfluorinated ethers
US4961321A (en) *	1989-02-28	1990-10-09	W. R. Grace & Co.-Conn.	Bis (difluoromethyl) ether refrigerant
US5185474A (en) *	1990-10-02	1993-02-09	W. R. Grace & Co.-Conn.	Synthesis of fluorinated dimethyl ethers
US5337012A (en) *	1992-03-18	1994-08-09	U.S. Philips Corporation	Amplifier having temperature compensated bias control
US5196600A (en) *	1992-03-25	1993-03-23	W. R. Grace & Co.-Conn.	Synthesis of fluorinated dimethyl ethers
US5278342A (en) *	1992-03-25	1994-01-11	Hampshire Chemical Corp.	Vapor phase chlorination of difluoromethyl methyl ether

1994
- 1994-04-01 US US08/221,498 patent/US5446211A/en not_active Expired - Fee Related
1995
- 1995-03-21 CA CA002145144A patent/CA2145144A1/en not_active Abandoned
- 1995-03-27 ZA ZA952493A patent/ZA952493B/xx unknown
- 1995-03-29 AT AT95104666T patent/ATE187427T1/de not_active IP Right Cessation
- 1995-03-29 DE DE0675098T patent/DE675098T1/de active Pending
- 1995-03-29 EP EP95104666A patent/EP0675098B1/en not_active Expired - Lifetime
- 1995-03-29 DE DE69513712T patent/DE69513712T2/de not_active Expired - Fee Related
- 1995-03-29 ES ES95104666T patent/ES2086275T3/es not_active Expired - Lifetime
- 1995-03-30 MY MYPI95000807A patent/MY112143A/en unknown
- 1995-03-30 BR BR9501281A patent/BR9501281A/pt not_active IP Right Cessation
- 1995-03-30 AU AU16155/95A patent/AU684606B2/en not_active Ceased
- 1995-03-31 TW TW084103113A patent/TW296369B/zh active
- 1995-03-31 JP JP7076210A patent/JPH07291881A/ja active Pending
- 1995-03-31 CN CN95103187A patent/CN1064664C/zh not_active Expired - Lifetime
1996
- 1996-04-30 GR GR960300022T patent/GR960300022T1/el unknown
2000
- 2000-02-02 GR GR20000400250T patent/GR3032554T3/el not_active IP Right Cessation

Also Published As

Publication number	Publication date
DE69513712T2 (de)	2000-07-06
AU1615595A (en)	1995-10-12
GR960300022T1 (en)	1996-04-30
AU684606B2 (en)	1997-12-18
GR3032554T3 (en)	2000-05-31
EP0675098A3 (en)	1995-11-29
CN1064664C (zh)	2001-04-18
US5446211A (en)	1995-08-29
CN1114302A (zh)	1996-01-03
DE675098T1 (de)	1996-10-24
ATE187427T1 (de)	1999-12-15
CA2145144A1 (en)	1995-10-02
ES2086275T3 (es)	2000-03-01
ES2086275T1 (es)	1996-07-01
JPH07291881A (ja)	1995-11-07
TW296369B (pt)	1997-01-21
DE69513712D1 (de)	2000-01-13
EP0675098A2 (en)	1995-10-04
ZA952493B (en)	1995-12-15
EP0675098B1 (en)	1999-12-08
MY112143A (en)	2001-04-30

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Legal Events

Date	Code	Title	Description
2000-10-17	FB36	Technical and formal requirements: requirement - article 36 of industrial property law
2000-11-28	TE	Change of address
2001-02-06	FF	Decision: intention to grant
2001-06-12	FG9A	Patent or certificate of addition granted
2011-04-19	B24C	Patent annual fee: request for for restoration	Free format text: REFERENTE 8A., 9A., 10A., 11A., 12A., 13A., 14A., 15A. E 16A. ANUIDADE(S).
2014-04-01	B24H	Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
2020-11-24	B24F	Patent annual fee: publication cancelled	Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2256 DE 01/04/2014 POR TER SIDO INDEVIDA.
2020-12-08	B21F	Lapse acc. art. 78, item iv - on non-payment of the annual fees in time	Free format text: REFERENTE AS 8A, 9A, 10A, 11A, 12A, 13A, 14A, 15A E 16A ANUIDADES.
2021-03-23	B24J	Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)	Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2605 DE 08-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.