Steroids p. 498 - 502 (1994)
Update date:2022-08-04
Topics:
Ali, Hasrat
Lier, Johan E. van
The reaction of 11β-substituted estrogens with 2,3,4,5,6,6-hexachloro-2,4-cyclohexadienone affords exclusively ortho-substituted monochlorinated products including a major 4-chloro and a minor 2-chloro derivative.In the absence of an 11β-substituent, regioselectivity is lost, resulting in a mixture of 10β- and ortho-chlorinated products.Keywords: estradiol derivative; regioselective chlorination; 2,3,4,5,6,6-hexachloro-2,4-cyclohexadienone
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