21320-99-0Relevant academic research and scientific papers
Straightforward pyrimidine ring construction: A versatile tool for the synthesis of nucleobase and nucleoside analogues
Robin, Aelig,Julienne, Karine,Meslin, Jean-Claude,Deniaud, David
, p. 634 - 643 (2007/10/03)
A general route to 1,2,4-trisubstituted pyrimidines is described in one to three steps from a common key precursor, diazadienium iodide 2. An efficient preliminary [4+2] cyclocondensation reaction between the azabutadiene building block 2 and various iso(thio)cyanates constitutes an original construction of the pyrimidine skeleton. Subsequent structural modifications on the heterocycle allow the elaboration of a 1-substituted pyrimidine library that includes nucleoside analogues. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.
An efficient synthesis of 1-substituted uracil ring systems and their thio analogues
Robin, Aélig,Julienne, Karine,Raimbault, Sophie,Meslin, Jean-Claude,Deniaud, David
, p. 2805 - 2807 (2007/10/03)
A facile and simple regioselective synthesis of uracils and their thio analogues has been achieved by cyclocondensation of a common precursor, diazadienium iodide 1, and isothiocyanates 2a,b. The key step in this synthetic process is the preparation of 4-
Solid-phase synthesis of 4(1H)-quinolone and pyrimidine derivatives based on a new scaffold - Polymer-bound cyclic malonic acid ester
Huang, Xian,Liu, Zhanxiang
, p. 6731 - 6737 (2007/10/03)
An efficient method for the preparation of polymer-bound cyclic malonic acid ester starting from Merrifield resin has been developed. Reaction of the resin-bound cyclic malonic acid ester with triethyl orthoformate and subsequent double substitution with
Improved One-Step Procedure for the Preparation of 1-Substituted and 1,3-Disubstituted Uracils and 2-Thiouracils
Winckelmann, Ib,Larsen, Erik H.
, p. 1041 - 1044 (2007/10/02)
A convenient one-pot procedure for the synthesis of 1-substituted and 1,3-disubstituted uracils and 2-thiouracils consists of acylation of ureas or thioureas with methyl 3,3-dimethoxypropanoate in the presence of a strong base, and acidic work-up.The yields range from 36 to 99percent.In all cases, only one regioisomer is isolated.
