Reactions of Steroid Salts with Hexachlorocyclotriphosphazene

Harry R. Allcock, Timothy J. Fuller, Kiyotoshi Matsumura

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The sodium salts of the steroids desoxoestrone (VI), estrone (VII), β-estradiol (VIII), 17α-ethynylestradiol (IX), estradiol 3-methyl ether (XIV), and 1,4-dihydroestradiol 3-methyl ether (XV) were found to react with hexachlorocyclotriphosphazene (III) to yield species of the general formula N3P3C16(0R) (IV). The remaining halogen atoms were replaced by methylamine to yield hydrolytically stable derivatives of formula N3P3- (NHCH3)6(OR) (V). These are model compounds for the analogous steroid-substituted phosphazene linear high polymers. Aliphatic steroids such as cholesterol (X), dihydrocholesterol (XI), pregnenolone (XII), estradiol 3-methyl ether (XIV), or 1,4-dihydroestradiol 3-methyl ether (XV) underwent dehydration as well as substitution in contact with III. Mestranol (XVII) as its 17-sodium salt did not react rapidly with III, presumably for steric reasons. At elevated temperatures, estrone 3-methyl ether (XVI) interacted with III by a complex process that involved elimination of hydrogen chloride. All the chlorine atoms in III could be replaced by a reaction with the sodium aryloxide salt of estrone (VII). The replacement followed a nongeminal pathway. The significance of these results for the synthesis of the related high polymers is discussed.

Original languageEnglish (US)
Pages (from-to)13-22
Number of pages10
JournalJournal of Organic Chemistry
Volume46
Issue number1
DOIs
StatePublished - Jan 1 1981

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Methyl Ethers
Salts
Steroids
Estradiol
Estrone
Sodium
Polymers
Cholestanol
Mestranol
Pregnenolone
Atoms
Halogens
Hydrochloric Acid
Chlorine
Dehydration
Substitution reactions
Cholesterol
Derivatives
hexachlorocyclotriphosphazene
Temperature

All Science Journal Classification (ASJC) codes

  • Organic Chemistry

Cite this

Allcock, Harry R. ; Fuller, Timothy J. ; Matsumura, Kiyotoshi. / Reactions of Steroid Salts with Hexachlorocyclotriphosphazene. In: Journal of Organic Chemistry. 1981 ; Vol. 46, No. 1. pp. 13-22.
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Reactions of Steroid Salts with Hexachlorocyclotriphosphazene. / Allcock, Harry R.; Fuller, Timothy J.; Matsumura, Kiyotoshi.

In: Journal of Organic Chemistry, Vol. 46, No. 1, 01.01.1981, p. 13-22.

Research output: Contribution to journalArticle

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