One-step hetarylation of steroids: regioselective synthesis of new estrone derivatives
摘要:
New estrone derivatives containing 1,2,4-triazin-5-one moieties were synthesised through direct C-C coupling of estrone 3-methyl ether with 1,2,4-triazinones.
The formation of 1,2,4-triazolylimidazolidine-2,4-diones in reactions of 3-aryl-1,2,4-triazin-5(2H)-ones with alkylureas
作者:D. G. Beresnev、G. L. Rusinov、A. Yu. Ponomareva、O. N. Chupakhin
DOI:10.1023/b:rucb.0000011873.81934.d0
日期:2003.10
Recyclization of the addition products of alkylureas to 3-aryl-1,2,4-triazin-5(2H)-ones affording 1,2,4-triazole derivatives was found to occur in Ac2O.