CH549543A - Procede de preparation d'un azeotrope de l'oxyde de 1 chloro-2,2,2-trifluoroethyle et de difluoromethyle. - Google Patents

Procede de preparation d'un azeotrope de l'oxyde de 1 chloro-2,2,2-trifluoroethyle et de difluoromethyle.

Info

Publication number
CH549543A
CH549543A CH1107572A CH1107572A CH549543A CH 549543 A CH549543 A CH 549543A CH 1107572 A CH1107572 A CH 1107572A CH 1107572 A CH1107572 A CH 1107572A CH 549543 A CH549543 A CH 549543A
Authority
CH
Switzerland
Prior art keywords
azeotrope
difluoromethyl
trifluoroethyl
chloro
preparing
Prior art date
Application number
CH1107572A
Other languages
English (en)
French (fr)
Original Assignee
Airco 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 Airco Inc filed Critical Airco Inc
Publication of CH549543A publication Critical patent/CH549543A/fr

Links

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
    • C07C41/34—Separation; Purification; Stabilisation; Use of additives
    • C07C41/40—Separation; Purification; Stabilisation; Use of additives by change of physical state, e.g. by crystallisation
    • C07C41/42—Separation; Purification; Stabilisation; Use of additives by change of physical state, e.g. by crystallisation by distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
CH1107572A 1971-08-02 1972-07-25 Procede de preparation d'un azeotrope de l'oxyde de 1 chloro-2,2,2-trifluoroethyle et de difluoromethyle. CH549543A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16839971A 1971-08-02 1971-08-02

Publications (1)

Publication Number Publication Date
CH549543A true CH549543A (fr) 1974-05-31

Family

ID=22611343

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1107572A CH549543A (fr) 1971-08-02 1972-07-25 Procede de preparation d'un azeotrope de l'oxyde de 1 chloro-2,2,2-trifluoroethyle et de difluoromethyle.

Country Status (19)

Country Link
US (1) US3720587A (Direct)
JP (1) JPS528808B2 (Direct)
AR (1) AR192960A1 (Direct)
AU (1) AU442153B2 (Direct)
BE (1) BE786675A (Direct)
BR (1) BR7204982D0 (Direct)
CA (1) CA976500A (Direct)
CH (1) CH549543A (Direct)
DE (1) DE2234309A1 (Direct)
DK (1) DK141164B (Direct)
ES (1) ES405150A1 (Direct)
FR (1) FR2148036B1 (Direct)
GB (1) GB1352484A (Direct)
IL (1) IL39835A (Direct)
IT (1) IT1048259B (Direct)
NL (1) NL146141B (Direct)
NO (1) NO135901C (Direct)
SE (1) SE392887B (Direct)
ZA (1) ZA724947B (Direct)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2610538B2 (ja) * 1990-04-13 1997-05-14 日本メクトロン株式会社 パーフルオロ（プロピルビニルエーテル）の精製法
US5230778A (en) * 1992-05-01 1993-07-27 Gavlin Associates Purification of isoflurane by extractive distillation
CA2566079A1 (en) * 2004-05-12 2005-12-01 Terrence L. Scott Nucleic acid microspheres, production and delivery thereof
US7605291B2 (en) * 2006-04-27 2009-10-20 Adalberto Maldonado Method for the preparation of volatile Anesthetics
AU2007299738B2 (en) * 2006-09-20 2013-03-28 The Board Of Regents Of The University Of Texas System Methods for delivering volatile anesthetics for regional anesthesia and/or pain relief
JP5789100B2 (ja) 2008-01-22 2015-10-07 ボード・オブ・リージエンツ，ザ・ユニバーシテイ・オブ・テキサス・システム 抽出溶媒を含む、局部的な麻酔および／または疼痛低減のための揮発性麻酔薬組成物
WO2013005178A1 (en) * 2011-07-05 2013-01-10 Piramal Healthcare Limited A continuous process for purification of 1-chloro-2,2,2-trifluoroethyl difluoromethyl ether (isoflurane)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442589A (en) * 1946-03-19 1948-06-01 Atomic Energy Commission Purification of perfluoroheptane by azeotropic distillation with methyl ethyl ketone
NL131714C (Direct) * 1963-02-06
US3406099A (en) * 1965-09-16 1968-10-15 Allied Chem Distillation of an azeotropic mixture of cf3cocf3 hf and ccl2fccif2
US3501533A (en) * 1967-09-06 1970-03-17 Allied Chem Recovery of fluorinated ether
US3535388A (en) * 1969-05-12 1970-10-20 Air Reduction 1-chloro-2,2,2-trifluoroethyl difluoromethyl ether

Also Published As

Publication number Publication date
AU442153B2 (en) 1973-11-15
BR7204982D0 (pt) 1973-05-15
IL39835A0 (en) 1972-09-28
GB1352484A (en) 1974-05-08
AU4423672A (en) 1973-11-15
CA976500A (en) 1975-10-21
JPS528808B2 (Direct) 1977-03-11
IL39835A (en) 1974-12-31
DE2234309B2 (Direct) 1974-04-11
NL146141B (nl) 1975-06-16
NO135901C (Direct) 1977-06-22
SE392887B (sv) 1977-04-25
JPS4828408A (Direct) 1973-04-14
DE2234309A1 (de) 1973-02-15
FR2148036B1 (Direct) 1974-07-26
ES405150A1 (es) 1976-02-16
ZA724947B (en) 1973-04-25
IT1048259B (it) 1980-11-20
US3720587A (en) 1973-03-13
DK141164B (da) 1980-01-28
NL7210156A (Direct) 1973-02-06
AR192960A1 (es) 1973-03-21
BE786675A (fr) 1973-01-25
DE2234309C3 (Direct) 1974-11-14
DK141164C (Direct) 1980-07-28
FR2148036A1 (Direct) 1973-03-11
NO135901B (Direct) 1977-03-14

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Legal Events

Date Code Title Description
PUE Assignment

Owner name: BOC, INC.

PL Patent ceased