Stereoselective Preparation of 3'-C-Allyluridines and 3'-Spiro-gamma-Lactone Uridine Analogues.
نویسندگان
چکیده
منابع مشابه
Preparation of Precocene 2 and 3 , 4 - Epoxyprecocene 2 Deuterated Analogues at C - 3 , C - 4 and C - 3 , C - 4
Precocene Analogues, Deuteration A convenient route for the preparation of title compounds from benzopyran-4-one (1) and its corresponding 3,3-H2 deuterated analogue (2) is reported. Treatment of 1 or 2 with lithium aluminum deuteride followed by dehydration afforded, respectively, 4-H precocene (3c) or 3,4-H2 precocene (3b). Likewise, reduction of 2 with lithium aluminum hydride and subsequent...
متن کاملPreparation and Characterization of Smcl3(THF)3 and Sm(BH4)3(THF)3 Complexes
The synthesis of SmCl3(THF)3 from SmCl3.6H2O is described. The reaction of SmCl3(THF)3 with NaBH4 in dry THF gave white microcrystalline tris (tetrahydroborato) tris (tetrahydrofuran) samarium (III), Sm(BH4)3(THF)3. The vibrational and magnetic properties of Sm(BH4)3...
متن کاملStereoselective Synthesis 3: Stereoselective Pericyclic Reactions, Cross Coupling, and C—H and C—X Activation
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V Volume Editors Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VII Abstracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
متن کامل1′-Methyl-2,2′′-dioxoindoline-3-spiro-2′-pyrrolidine-3′-spiro-3′′-indoline-4′,4′-dicarbonitrile
In the title compound, C(21)H(15)N(5)O(2), the pyrrolidine ring adopts a twist conformation. Both the oxindole rings are planar [maximum deviations of 0.076 (1) and 0.029 (1) Å in the two rings] and are oriented at a dihedral angle of 72.7 (1)°. The crystal structure is stabilized by C-H⋯O, N-H⋯O, N-H⋯N and C-H⋯π inter-actions.
متن کامل4′-(2,4-Dichlorophenyl)-1,1′-dimethylpiperidine-3-spiro-3′-pyrrolidine-2′-spiro-3′′-indoline-4,2′′-dione
In the title compound, C(23)H(23)Cl(2)N(3)O(2), the pyrroline ring adopts an envelope conformation and the piperidinone ring assumes a slightly twisted chair form. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate an R(2) (8) graph-set motif and a short Cl⋯Cl contact of 3.478 (1) Å occurs.
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1996
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.50-1030