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Radiolabeling of the B- and C-ring of estradiol using no-carrier-added bromine-77

โœ Scribed by Mark D. Hylarides; Alberto A. Leon; Fred A. Mettler; D. Scott Wilbur


Publisher
John Wiley and Sons
Year
1985
Tongue
French
Weight
316 KB
Volume
22
Category
Article
ISSN
0022-2135

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โœฆ Synopsis


Two e s t r a d l o l d e r i v a t i v e s , A6and A -e s t r a d i o l 3-acetate (1) and (2) were prepared and allowed t o r e a c t u l t h Na Br and N-chlorosucclnlmlde (NCS) I n methanol. The r a p l d a d d l t l o n o f 778r-OCH3 t o t h e 8-rtng and C-rlng double bonds


๐Ÿ“œ SIMILAR VOLUMES


Radiobromination of the 1-position of es
โœ Mark D. Hylrides; Patricia L. Buksa; Fred A. Mettler; D. Scott Wilbur ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› John Wiley and Sons ๐ŸŒ French โš– 215 KB

The t a r g e t compound, 1-([ Br1bromo)estradlol (la), was prepared i n t h r e e steps from 4-amlnoestradlol 3-methyl ether (2). E l e c t r o p h l l l c bromlnatlon o f 2 w l t h I n s l t u generated 7 7 B r C l f o l l o w e d by deamlnatlon I n t h e same r e a c t i o n m i x t u r e gave 1-

The no-carrier-added synthesis of bromin
โœ George W. Kabalka; Arjun R. Mereddy; James F. Green ๐Ÿ“‚ Article ๐Ÿ“… 2006 ๐Ÿ› John Wiley and Sons ๐ŸŒ French โš– 79 KB

## Abstract A straightforward radiobromination procedure has been developed for the construction of radiobrominated alkenyl and alkynyl bromides. The organotrifluoroborates used as the reactive intermediates are unique in that they are quite polar and thus readily separated from the desired product