NOVEL 2-THIOXOHYDANTOIN KETENE DITHIOACETALS: VERSATILE INTERMEDIATES FOR SYNTHESIS OF METHYLSULFANYLIMIDAZO- [4,5-C]PYRAZOLES AND METHYLSULFANYLPYRROLO- [1,2-C]IMIDAZOLES
摘要:
The novel 2-thioxohydantoin ketene S,S-acetals 3a,b were prepared by the reaction of 2-thioxohydantoins 1a,b with carbon disulfide, followed by alkylation with methyl iodide of the produced sodium dithiolate salts 2a,b. The reaction of compounds 3a,b with nucleophiles afforded different fused methylsulfanylimidazoles.
NOVEL 2-THIOXOHYDANTOIN KETENE DITHIOACETALS: VERSATILE INTERMEDIATES FOR SYNTHESIS OF METHYLSULFANYLIMIDAZO- [4,5-C]PYRAZOLES AND METHYLSULFANYLPYRROLO- [1,2-C]IMIDAZOLES
摘要:
The novel 2-thioxohydantoin ketene S,S-acetals 3a,b were prepared by the reaction of 2-thioxohydantoins 1a,b with carbon disulfide, followed by alkylation with methyl iodide of the produced sodium dithiolate salts 2a,b. The reaction of compounds 3a,b with nucleophiles afforded different fused methylsulfanylimidazoles.
Novel Mercaptopurine and Thioguanine Analogues: The Reaction of Dimethyl <i>N</i>‐Cyanodithioiminocarbonate with Oxo‐ and Amino‐diazoles
作者:Siham Y. Alqaradawi、Galal H. Elgemeie
DOI:10.1081/scc-120028352
日期:2004.12.31
A novel and efficient method for the synthesis of a new variety of methylsulfanyl derivatives of azoloazines and azoloazoles by the reaction of dimethyl N-cyanodithioiminocarbonate with diazoles containing oxo-and amino functions. The synthetic potential of the method is demonstrated.
NOVEL 2-THIOXOHYDANTOIN KETENE DITHIOACETALS: VERSATILE INTERMEDIATES FOR SYNTHESIS OF METHYLSULFANYLIMIDAZO- [4,5-<i>C</i>]PYRAZOLES AND METHYLSULFANYLPYRROLO- [1,2-<i>C</i>]IMIDAZOLES
作者:Galal H. Elgemeie、Ahmed H. Elghandour、Hosny A. Ali、Ahmed M. Hussein
DOI:10.1081/scc-120005435
日期:2002.1.1
The novel 2-thioxohydantoin ketene S,S-acetals 3a,b were prepared by the reaction of 2-thioxohydantoins 1a,b with carbon disulfide, followed by alkylation with methyl iodide of the produced sodium dithiolate salts 2a,b. The reaction of compounds 3a,b with nucleophiles afforded different fused methylsulfanylimidazoles.