For an oxidative 4-methoxybenzylidenation, see e.g. [3a], and for a reductive benzylidenation [3b] ') A large number of fused benzylidene acetals of 1,3-diols are known, but only a few bridged ones, namely derivatives of rihopyranosides and of 8-ribonolactone [lo], of glucopyranosides [I I], and of
Synthesis of new monofunctional and oligofunctional oxetane acetals
β Scribed by Ulf Annby; Martin Ek; Nicola Rehnberg
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 126 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0887-624X
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Pyruvic acid acetals (l-carboxyethylidene acetals) linked to aldohexopyranosyl residues are known to occur in a number of polysaccharides. These include agarl, and exocellular2 and capsular polysaccharides'. Pyruvic acid is most often linked to O-4 and O-6 of such hexoses as o-glucose, D-mannose, D-
Silica of different surface area and grain size modified by aminopropyl groups reacted with 4-(3,4-dicyanophenoxy)benzoic acid chloride. The reaction of these benzamidophenoxydicarbonitrile modified silica gels with 4-(4-tert-butyl-phenoxy)-1,2-benzenedicarbonitrile in the presence of a zinc(II) sal
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
A new oxetane-containing polyether was synthesized by polycondensation of bisphenol-AF (BPAF) with 3,3-bis(chloromethyl)oxetane (BCMO) using the phasetransfer catalyzed method. The polycondensation proceeded very smoothly in aromatic solvents, catalyzed by quaternary ammonium or phosphonium salts, s