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No-carrier-added bromination of estrogens with chloramine-t and Na77Br

✍ Scribed by J. K. Mazaitis; B. E. Francis; W. C. Eckelman; R. E. Gibson; R. C. Reba; J. W. Barnes; G. E. Bentley; P. M. Grant; H. A. O'Brien Jr

Publisher
John Wiley and Sons
Year
1981
Tongue
French
Weight
230 KB
Volume
18
Category
Article
ISSN
0022-2135

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✦ Synopsis

Abstract

The syntheses of monobromohexestrol and 17α‐bromoethynylestradiol are described as examples of bromination of phenolic and ethynyl moieties using Chloramine‐T. This technique represents a unique method of producing no‐carrier‐added radiobromoethynylderivatives. However, more efficient chromatography is needed to separate the chloroderivative, which is a side product of the reaction, from the radio‐bromoderivative.

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