Crystalline furanose derivatives of 3-deoxy-d-arabino-hexose: Conformational studies by n.m.r. spectroscopy

Debenzoylation of 2,4,6-tri-O-benzoyl-3-deoxy-d-arabino-hexono-1,5-lactone (1) followed by heating in vacuo and rebenzoylation afforded 2,5,6-tri-O-benzoyl-3-deoxy-d-arabino-hexono-1,4-lactone (2). Reduction of 2 with disiamylborane gave 2,5,6-tri-O-benzoyl-3-deoxy-d-arabino-hexofuranose (3), a conv...

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Autor principal: du Mortier, C.
Otros Autores: de Lederkremer, R.M
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1985
Acceso en línea:Registro en Scopus
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100 1 |a du Mortier, C. 
245 1 0 |a Crystalline furanose derivatives of 3-deoxy-d-arabino-hexose: Conformational studies by n.m.r. spectroscopy 
260 |c 1985 
270 1 0 |m du Mortier, C.; Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pabellon II, 1428 Buenos Aires, Argentina 
506 |2 openaire  |e Política editorial 
504 |a de Lederkremer, Sala, (1975) Carbohydr. Res., 40, pp. 385-386 
504 |a Varela, Fernández Cirelli, de Lederkremer, (1979) Carbohydr. Res., 70, pp. 27-35 
504 |a Sala, Fernández Cirelli, de Lederkremer, (1980) Carbohydr. Res., 78, pp. 61-66 
504 |a du Mortier, de Lederkremer, A New Synthesis of 3-Deoxy-D-arabino-hexose and its Tautomeric Equilibrium (1984) Journal of Carbohydrate Chemistry, 3, pp. 219-228 
504 |a de Lederkremer, Litter, (1971) Carbohydr. Res., 20, pp. 442-444 
504 |a Varela, Fernández Cirelli, de Lederkremer, (1982) Carbohydr. Res., 100, pp. 424-430 
504 |a Slessor, Tracey, Couplings into Methylene Groups: a New Nuclear Magnetic Resonance Approach to Stereochemistry (1971) Canadian Journal of Chemistry, 49, pp. 2874-2884 
504 |a Hall, Black, Slessor, Tracey, Conformational Studies on the 1,2;5,6-Di-O-isopropylidene-D-hexoses (1972) Canadian Journal of Chemistry, 50, pp. 1912-1924 
504 |a Varela, Cirelli, de Lederkremer, A crystalline furanose derivative of ascarylose. Synthesis of 2,5-di-O-benzoyl-3,6-dideoxy-α-L-arabino-hexofuranose (1980) Carbohydrate Research, 85, pp. 130-135 
504 |a Cirelli, Sznaidman, Varela, de Lederkremer, (1983) Tetrahedron, 39, pp. 313-316 
504 |a Bock, Pedersen, (1983) Adv. Carbohydr. Chem. Biochem., 41, pp. 27-66 
504 |a Kohn, Samaritano, Lerner, (1965) J. Am. Chem. Soc., 87, pp. 5475-5480 
504 |a Stevens, Fletcher, Jr., (1968) J. Org. Chem., 33, pp. 1799-1805 
504 |a Gillard, Israel, (1981) Tetrahedron Lett., 22, pp. 513-516 
504 |a Gorin, Mazurek, Further Studies on the Assignment of Signals in13C Magnetic Resonance Spectra of Aldoses and Derived Methyl Glycosides (1975) Canadian Journal of Chemistry, 53, pp. 1212-1223 
504 |a Gorin, Mazurek, (1976) Carbohydr. Res., 48, pp. 171-186 
504 |a Wolfrom, Wood, Jr., (1949) J. Am. Chem. Soc., 71, pp. 3175-3176 
520 3 |a Debenzoylation of 2,4,6-tri-O-benzoyl-3-deoxy-d-arabino-hexono-1,5-lactone (1) followed by heating in vacuo and rebenzoylation afforded 2,5,6-tri-O-benzoyl-3-deoxy-d-arabino-hexono-1,4-lactone (2). Reduction of 2 with disiamylborane gave 2,5,6-tri-O-benzoyl-3-deoxy-d-arabino-hexofuranose (3), a convenient furanose derivative for the synthesis of glycosides. Acetylation of 3 with acetic anhydride-pyridine afforded 1-O-acetyl-2,5,6-tri-O-benzoyl-3-deoxy-α-d-arabino-hexofuranose (4). Compound 4 was converted into methyl 2,4,6-tri-O-benzoyl-3-deoxy-α-d-arabino-hexofuranoside (5) through the bromide obtained by treatment of 4 with bromotrimethylsilane, followed by methanol. Debenzoylation of 5 gave methyl 3-deoxy-α-d-arabino-hexofuranoside (6). All compounds mentioned were obtained crystalline. Conformational studies of 4, 5, and 6 were made by 1H-n.m.r. spectroscopy (DAERM method), and the 13C-n.m.r. spectral data are correlated. The structures of compounds 2, 4 and 5 were also confirmed by mass spectrometry. {A figure is presented}. © 1985.  |l eng 
536 |a Detalles de la financiación: Consejo De Ciencia, Innovación Y Tecnología Del Estado De Yucatán 
536 |a Detalles de la financiación: We thank UMYMFOR-CONICET-FCEN (Unidad de Microanalisis y Metodos Fisicos Organicos, Consejo National de InvestigacionesC ientificas y Tecnicas Facultad de Ciencias Exactas y Naturales) for the microanalysesa nd spectra and SUBCYT (Subsecretariad e Estado de Ciencia y Tecnologia) for financials upport. 
593 |a Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pabellon II, 1428 Buenos Aires, Argentina 
700 1 |a de Lederkremer, R.M. 
773 0 |d 1985  |g v. 139  |h pp. 47-54  |k n. C  |p Carbohydr. Res.  |x 00086215  |w (AR-BaUEN)CENRE-301  |t Carbohydrate Research 
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