GB1111752A - A novel acid anhydride,process for the manufacture and use thereof - Google Patents

A novel acid anhydride,process for the manufacture and use thereof

Info

Publication number
GB1111752A
GB1111752A GB89966A GB89966A GB1111752A GB 1111752 A GB1111752 A GB 1111752A GB 89966 A GB89966 A GB 89966A GB 89966 A GB89966 A GB 89966A GB 1111752 A GB1111752 A GB 1111752A
Authority
GB
United Kingdom
Prior art keywords
testosterone
hydroxy
androstene
ethinyl
vinyl
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
GB89966A
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 GB1111752A publication Critical patent/GB1111752A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C55/00Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms
    • C07C55/02Dicarboxylic acids
    • C07C55/06Oxalic acid
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/34Esters of acyclic saturated polycarboxylic acids having an esterified carboxyl group bound to an acyclic carbon atom
    • C07C69/36Oxalic acid esters

Landscapes

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

Abstract

The invention comprises methoxalic anhydride which is prepared by reacting a methoxalic acid halide with a salt of methoxalic acid. Alkali metal salts, or the salts of tertiary bases such as pyridine triethylamine, dimethylaniline or thiazole are preferred and the halide may be a chloride which is prepared by reacting potassium methoxalate with thionyl chloride. The product forms stable plate-shaped crystals MP 65-67 DEG C. and may be used as an acylating agent for hydroxy groups. The esterification process may be used for the separation of primary and secondary alcohols or for the quantitative determination of hydroxy groups. Examples describe the preparation of the anhydride, and the purification of 19-nor-17-vinyl-testosterone and linalool; the isolation of 17 - ethinyl-testosterone; the separation of estradiol from estrone; the esterification of 17-ethinyl-testosterone, methyl-testosterone, and 19 - nor - 17 - vinyl - testosterone to the corresponding methoxalates; the preparation of the potassium salts of 11b -hydroxy-androstene-3,17-dione and the 11-oxalate of hydrocortisone; the preparation and saponification of cholesterol-methoxalate and testosterone methoxalate; and the quantitative determination of the hydroxy groups in sec. octanol, phenylethyl alcohol, cyclohexanol, menthol, benzoin, propylene glycol, cholesterol, testosterone, dimethyl b -naphthyl carbinol, 17-methyl-androstene-3,17-diol, methyl testosterone, 17-vinyl-19-nor-testosterone, 17-ethinyl-testosterone, 11b - hydroxy - D 4 androstene - 3,17 - dion and hydrocortisone.ALSO:Hydroxy groups in alcohols are determined quantitatively by reacting the alcohol with methoxalic anhydride (see Division C2) dissolved in pyridine, extracting with water, and titrating the aqueous extract with sodium hydroxide alcohols mentioned are sec. octanol, propylene glycol, cholesterol, tetrosterone, dimethyl-B-naphthyl carbinol, 17-methylandrostene-3, 17-diol, methyltertosterone, 17-vinyl. 19-nor-tertosterone, 17-ethinyl-tertosterone, 11B-hydroxy-D 4-androstene-3, 17-dion and hydrocortisone.
GB89966A 1965-01-15 1966-01-07 A novel acid anhydride,process for the manufacture and use thereof Expired GB1111752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO0010600 1965-01-15

Publications (1)

Publication Number Publication Date
GB1111752A true GB1111752A (en) 1968-05-01

Family

ID=7352036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB89966A Expired GB1111752A (en) 1965-01-15 1966-01-07 A novel acid anhydride,process for the manufacture and use thereof

Country Status (4)

Country Link
DE (1) DE1593190A1 (en)
FR (1) FR1466671A (en)
GB (1) GB1111752A (en)
NL (1) NL6600508A (en)

Also Published As

Publication number Publication date
FR1466671A (en) 1967-01-20
DE1593190A1 (en) 1970-04-30
NL6600508A (en) 1966-07-18

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