Carbohydrate Research, 239 (1993) C9-C11 Elsevier Science Publishers B.V., Amsterdam CONTENTS Solution conformation of methyl B-xylobioside from optical rotation E.S. Stevens (Binghamton, NY, USA), S. Bystricky and J. Hirsch (Bratislava, Czechoslo- vakia) Oligosaccharide microscale analysis by circular dichroic spectroscopy: Reference spectra for chromophoric p-fructofuranoside derivatives N. Ikemoto, L.-C. Lo, O.K. Kim, N. Berova and K. Nakanishi (New York, NY, USA) ... An improved approach to the analysis of the structure of small oligosaccharides of glycoproteins: application to the O-linked oligosaccharides from human glycophorin A H. Krotkiewski, E. Lisowska (Wroclaw, Poland), G. Nilsson, G. Grénberg and B. Nilsson (Lund, Sweden) Overlapping anomeric effects in a sucrose analogue A.D. French (New Orleans, LA, USA), L. Schafer and S.Q. Newton (Fayetteville, USA) . Enhanced structural information on oligosaccharides by scan of linked magnetic and electro- static fields (B/E) and neutral gas collision fast-atom-bombardment mass spectrometry (FABMS) V. Kovack (Bratislava, Czechoslovakia), H.K. Lee and P. Kovaé (Bethesda, MD, (USA) . . Synthesis of the C’D’ disaccharide of aureolic acid R.W. Franck and N. Kaila (New York, NY, USA) The reaction of phenylhydrazine with squaric acid: a model for carbohydrate osazone formation H.S. El Khadem, M.A. Shalaby (Washington DC, USA), B. Coxon and A.J. Fatiadi (Gaithersberg, MD, USA) Studies of the synthesis of 1,2-cis-(cyclic carbamates) of a-p-aldopyranosylamines J. Kovacs, I. Pintér, G. Téth (Budapest, Hungary), Z. Gyérgydeak (Debrecen, Hungary) and P. K6ll (Oldenburg, Germany) Specificity of mild periodate oxidation of oligosaccharide-alditols: relevance to the analysis of the core-branching pattern of O-linked glycoprotein oligosaccharides W. Chai, M.S. Stoll, G.C. Cashmore and A.M. Lawson (Harrow, UK) Acetolysis of 2,4-O-benzylidene-p-xylo-hex-5-enitol derivatives J. Kuszmann, B. Podanyi and L. Parkanyi (Budapest, Hungary) Photolysis of 2-azi-2-deoxy-p-arabino-hexitol and analogous hexitols; the ineffectiveness of certain carbohydrate diazirines as photoaffinity labels J. Lehmann and S. Petry (Freiburg, FRG) Chemical interaction between the aglycon and the allyl group of 6-O-allylhexopyranoside derivatives R.J. Ferrier, D.W. Hall and P.M. Petersen (Wellington, New Zealand) C10 Contents / Carbohydr. Res. 239 (1993) C9-C11 A chemoenzymic synthesis of 1,5-dideoxy-1,5-imino-L-mannitol and -L-rhamnitol and investiga- tion of their effects on glycosidases P. Zhou, H.M. Salleh, P.C.M. Chan, G. Lajoie, J.F. Honek, P.T.C. Nambiar and O.P. Ward (Waterloo, ON, Canada) Rapid production of a panel of blood group A-active oligosaccharides using chemically synthe- sized di- and tri-saccharide primers and an easily prepared porcine (1 — 3)-a-N-acetyl-p- galactosaminyltransferase C.A. Compston, C. Condon, H.R. Hanna and M.A. Mazid (Edmonton, AB, Canada)... . Reaction of mono- and oligo-saccharides with keto or ethylenic enol ethers as a route to functionalized acetals and monomers for polymerization C. Fayet and J. Gelas (Aubiére, France) Complexes of cobalt(III) with p-glucosamine and amines S. Bunel, C. Ibarra, E. Moraga, V. Calvo (Santiago, Chile), A. Blask6 and C.A. Bunton (Santa Barbara, CA, USA) An improved synthesis of 4-azido-4-deoxy- and 4-amino-4-deoxy-a,a-trehalose and their epimers R.W. Bassily, R.I. El-Sokkary, B.A. Silwanis (Alexandria, Egypt), A.S. Nematalla (Alamed, CA, USA) and M.A. Nashed (Alexandria, Egypt) Structural characterisation of the exopolysaccharide produced by Lactobacillus delbriickii sub- species bulgaricus rr grown in skimmed milk M. Gruter, B.R. Leeflang (Utrecht, Netherlands), J. Kuiper (Vlaardingen, Netherlands), J.P. Kamerling and J.F.G. Vliegenthart (Utrecht, Netherlands) Preparation and crystallization of p-glucosamine oligosaccharides with dp 6-8 E. Muraki, F. Yaku and H. Kojima (Osaka, Japan) Notes Separation of hyaluronan oligosaccharides by the use of anion-exchange HPLC S. Holmbeck and L. Lerner (Madison, WI, USA) Crystal and molecular structure of a-p-ribopyranosylamine 1,3-(cyclic carbamate) P. KGll, J. Kovacs (Oldenburg, Germany), D. Abeln and J. Kopf (Hamburg, Germany). . . Visualisation of the geometries of objects fabricated from calcium alginate, using magnetic resonance imaging K. Potter, N.J. Herrod, T.A. Carpenter and L.D. Hall (Cambridge, UK) Structural studies of Melicocca bijuga gum exudate G.L. de Pinto, S. Alvarez, M. Martinez (Maracaibo, Venezuela), A. Rojas and E. Leal (Caracas Venezuela) Synthesis of an intermediate fragment of the capsular polysaccharides of Klebsiella type 8 D.-Y. He, Z.-J. Li and M.-S. Cai (Beijing, China) Synthesis of 3-amino-3-deoxy-5-thio-p-allose and 3-amino-3-deoxy-1,2-O :5,6-S,O-di-isopropyli- dene- 5-thio-a-p-glucofuranose N.A.L. Al-Masoudi and N.J. Tooma (Basrah, Iraq) 5- and 4-(p-lyxofuranosyl)pyrazoles: a new type of pyrazole C-nucleoside M. Gémez-Guillén and J.M.L. Simon (Seville, Spain) Contents / Carbohydr. Res. 239 (1993) C9-C11 Synthesis of B-estradiol B-p-xylopyranosides, primers of heparan sulfate in Chinese hamster ovary cells F.N. Lugemwa and J.D. Esko (Birmingham, AL, USA) Acetylative desulfation of a glucose-6-sulfate: An oxygen isotope labelling study J.A. Hyatt (Kingsport, TN, USA) Synthesis of methyl 3-O-(2-O-methyl-a-_-fucopyranosyl)-a-L-rhamnopyranoside, methyl 3-O-a-L- rhamnopyranosyl-a-p-glucopyranoside, and methyl 3-O-[3-O-(2-O-methyl-a-.-fucopyran- osyl)-a-L-rhamnopyranosyl]-a-L-rhamnopyranoside: di- and tri-saccharide segments of a lipo-oligosaccharide (LOS-1) of Mycobacterium szulgai M.K. Gurjar and P.S. Mainkar (Hyderabad, India) A simple synthesis of 6-deoxy-p-(6-” H)glucopyranose D.H.G. Crout, J.R. Hanrahan and D.W. Hutchinson (Coventry, UK) Synthesis of 1,3-dideoxy-3-fluoronojirimycin C.-K. Lee, H. Jiang, L.L. Koh and Y. Xu (Kent Ridge, Singapore) p-Benzoquinone as precursor for the synthesis of modified p- and t-hexoses: Preparation of 2-acetamido-2,4-dideoxy-p- and L-xylo-hexopyranose J. Lehmann and A. Moritz (Freiburg, Germany) Characterization of the polysaccharide antigen of Klebsiella pneumoniae O :9 lipopolysaccharide L.L. MacLean (Ottawa, ON, Canada), C. Whitfield (Guelph, ON, Canada) and M.B. Perry (Ottawa, ON, Canada) An enzyme-linked immunosorbent assay for blood-group A and B enzymes S. Yazawa, T. Nakajima, N. Kameyama (Maebashi, Japan), K.-I. Saga (Hyogo, Japan) and T. Tachikawa (Tokushima, Japan) Announcement Author index Subject index Contents