论文信息 - Syntheses and Study of New 2-Hydroxy-5,6-Dihydro-2H-1,4-Oxazines by NMR and X-ray Crystallography

Syntheses and Study of New 2-Hydroxy-5,6-Dihydro-2H-1,4-Oxazines by NMR and X-ray Crystallography

Abstract The preparation of six new 2-hydroxy-5,6-dihydro-2H-[1,4]-oxazines and four oxazino-oxazine type structures is described. The structures of four of these compounds were established by X-ray crystallographic analyses.

[1] R. Santillán,et al. SYNTHESES OF BISOXAZOLIDINES AND MORPHOLONES , 1999 .

[2] R. Santillán,et al. A new method for the preparation of unsymmetrical 1,4-substituted piperazine derivatives , 1999 .

[3] R. Santillán,et al. One Step Syntheses of Heteropropellanes , 1998 .

[4] R. Santillán,et al. Highly Regio- and stereoselective formation of 2-hydroxy-5,6-dihydro-2H-1,4-oxazines. An X-ray and 13C NMR study , 1995 .

[5] R. Santillán,et al. New tricyclic products from the reaction of 2,3-butanedione and ethnolamine4 , 1994 .

[6] P. Joseph-Nathan,et al. Fused heterocycles derived from pseudoephedrine and ephedrine , 1992 .

[7] Gabriel Cuevas,et al. Recent studies of the anomeric effect , 1992 .

[8] B. Alcaide,et al. Reaction of .alpha.-diketones with 2-amino alcohols. Intramolecular competitive 6-exo-trig vs 5-endo-trig processes. A systematic and kinetic study , 1992 .

[9] R. Contreras,et al. High-yield syntheses of N-(2-hydroxyethyl)-N-alkylglycine derivatives by reaction of ethanolamines with glyoxal , 1987 .

[10] J. Baldwin,et al. Rules for ring closure. , 1977, Ciba Foundation symposium.