New procedures for the synthesis of heterocyclic substituted and 2,4-difunctionalized pyrimidines
作者:Antonio García Martínez、Antonio Herrera Fernández、Florencio Moreno Jiménez、Pablo J Muñoz Martínez、Cristina Alonso Martín、Laksminarayanapuran R Subramanian
DOI:10.1016/0040-4020(96)00368-7
日期:1996.6
N-tosyl-2-pyrrolidone 5 were condensed with cyano compounds in the presence of triflic anhydride (Tf2O) to yield heteroarylpyrimidines. 2,4-Difunctionalized pyrimidines were obtained by reaction of the corresponding 2,4-bis(methylsulfonyl)pyrimidines with nucleophiles.
Wheeler; Merriam, American Chemical Journal, 1903, vol. 29, p. 491
作者:Wheeler、Merriam
DOI:——
日期:——
MICROWAVE PROMOTED EFFICIENT SYNTHESIS OF SUBSTITUTED URACILS AND THIOURACILS UNDER SOLVENT-FREE CONDITIONS
作者:Mohammad M. Mojtahedi、Mohammad R. Saidi、Jafar S. Shirzi、Mohammad Bolourtchian
DOI:10.1081/scc-120002693
日期:2002.1.1
Several substituted uracils and thiouracils were synthesized in good yields by one-pot condensation reaction of methyl or ethyl beta-ketoesters and urea (or thiourea) in solvent-free conditions under microwave irradiation and in short time.
Byk, Chemische Berichte, 1903, vol. 36, p. 1922
作者:Byk
DOI:——
日期:——
GOTO, SHUNSUKE;YAMANAKA, ATSUO;KAGARA, KOHJI;YAZAWA, HISATOYO, CHEM. EXPRESS, 3,(1988) N, C. 211-214