作者:Adolfo Diaz、Maria P. Matia、Jose L. Garcia-Navio、Juan J. Vaquero、Julio Alvarez-Builla
DOI:10.1021/jo00105a062
日期:1994.12
Matia, Maria P.; Garcia-Navio, Jose L.; Vaquero, Juan J., Liebigs Annalen der Chemie, 1992, # 7, p. 777 - 780
作者:Matia, Maria P.、Garcia-Navio, Jose L.、Vaquero, Juan J.、Alvarez-Builla, Julio
DOI:——
日期:——
Optimized Synthesis of Di, Tri and Tetrafused Pyridazinium Cations
作者:Jorge Siró、Andrés Ramos、Juan J Vaquero、Julio Alvarez-Builla、José L Garcı́a-Navı́o
DOI:10.1016/s0040-4020(00)00079-x
日期:2000.4
By combining two complementary statistical techniques (fractional factorial experimental design and simplex operation) the synthesis of the parent pyrido[1,2-b]-pyridazinium cation has been successfully carried out (the yield was improved from less than 10 to 65%) by basic condensation of 2-methyl-1-aminopyridinium mesitylenesulfonate and [1,4]dioxane-2,3-diol, Using the optimized reaction conditions, other related heterocyclic cations could be prepared, and two interesting examples are now reported. (C) 2000 Elsevier Science Ltd. All rights reserved.
TAMURA Y.; HAYASHI H.; NISHIMURA Y.; IKEDA M., J. HETEROCYCL. CHEM. <JHTC-AD>, 1975, 12, NO 2, 225-230