GB970789A - Process of esterification - Google Patents

Process of esterification

Info

Publication number
GB970789A
GB970789A GB842762A GB842762A GB970789A GB 970789 A GB970789 A GB 970789A GB 842762 A GB842762 A GB 842762A GB 842762 A GB842762 A GB 842762A GB 970789 A GB970789 A GB 970789A
Authority
GB
United Kingdom
Prior art keywords
ethyl
acid
methyl
diethylaminoethyl
benzoate
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
GB842762A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB970789A publication Critical patent/GB970789A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J75/00Processes for the preparation of steroids in general
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00Preparation of carboxylic acid esters
    • C07C67/12Preparation of carboxylic acid esters from asymmetrical anhydrides
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D209/00Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/04Indoles; Hydrogenated indoles
    • C07D209/10Indoles; Hydrogenated indoles with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
    • C07D209/18Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/93Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems condensed with a ring other than six-membered
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D499/00Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/06Phosphorus compounds without P—C bonds
    • C07F9/08Esters of oxyacids of phosphorus
    • C07F9/09Esters of phosphoric acids
    • C07F9/11Esters of phosphoric acids with hydroxyalkyl compounds without further substituents on alkyl
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J5/00Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Steroid Compounds (AREA)

Abstract

The invention comprises (a) a process of esterification wherein an organic acid or inorganic oxyacid is reacted with a lower alkyl chloro-, bromo- or iodo-carbonate and the resulting mixed anhydride of the formula A.CO.O. COOAlkyl (I) or A1 O.CO.OAlkyl (II), wherein A is the residue of an organic acid without the carboxyl group and A1 is the residue of an inorganic acid, is reacted with the alcohol to be esterified, and (b) as new esters the diethylaminoethyl ester of 6-amino-penicillanic acid and the sodium 9a -fluoro -16- (2 and b )-methylprednisolone -21- sulphates. The preparation of the mixed anhydrides (I) and (II) is suitably carried out by addition of the halocarbonate e.g. ethyl chlorocarbonate to the acid, or its alkali-metal or alkaline earth metal salt, in an inert solvent such as dimethyl formamide, acetonitrile or acetone, at 0 DEG C. to -40 DEG C. Other specified products include ethyl benzoate, ethyl acetate, isopropyl palmitate, diethylaminoethyl benzoate, dimethylaminoethyl benzoate, diethylmalonate, diethylaminoethyl penicillin G, chloramphenicol pentothenate, chloramphenical palmitate, methyl gibrellate, methyl indolacetate, prednisolone -21- phosphate, testosterone propionate, methyl N-acetylpenicillamine, methandriol diacetate, ethyl diacetylcholate, ethyl phenaceturate and estradiol baneozate.
GB842762A 1961-03-03 1962-03-05 Process of esterification Expired GB970789A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT3814361 1961-03-03

Publications (1)

Publication Number Publication Date
GB970789A true GB970789A (en) 1964-09-23

Family

ID=20081602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB842762A Expired GB970789A (en) 1961-03-03 1962-03-05 Process of esterification

Country Status (5)

Country Link
BE (1) BE614636A (en)
CH (1) CH436239A (en)
DE (1) DE1200822B (en)
GB (1) GB970789A (en)
NL (1) NL275507A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5874468A (en) * 1996-12-26 1999-02-23 Yissum Brain targeted low molecular weight hydrophobic antioxidant compounds

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1093797B (en) * 1959-01-31 1960-12-01 Bayer Ag Process for the production of carboxylic acid esters
DE1111187B (en) * 1959-11-27 1961-07-20 Shell Int Research Process for the preparation of phosphoric acid esters, phosphoric amides or carbonic anhydrides

Also Published As

Publication number Publication date
CH436239A (en) 1967-05-31
BE614636A (en) 1962-07-02
DE1200822B (en) 1965-09-16
NL275507A (en)

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