In the title compound, C 25 H 30 NO + ÁCl À , the molecules are linked by a combination of intermolecular NÐHÁ Á ÁCl and OÐHÁ Á ÁCl hydrogen bonds and intramolecular NÐHÁ Á ÁO hydrogen bonds. The absolute con®guration of the new stereogenic centre (the C atom adjacent to the N atom on the phenol side) is determined to have an R con®guration. CommentThe synthesis of enantiopure amine alcohols with a variety of functionalities is an important subject of research because this class of compounds are widespread in natural products, show pharmacological activity and have recently found application in asymmetric synthesis as chiral bases, auxiliaries and ligands (Cimarelli et al., 2002). Chiral aminophenols, which are similar to amino alcohols, are important building blocks in organic synthesis, and have attracted increasing attention in recent years owing to their effect in asymmetric synthesis and asymmetric induction (Cimarelli et al.

The synthesis and surface active properties of sodium 3-alkoxy-and 3-[alkylmono (di) (oxyethylene)oxy]-2-hydroxy-l-propanesulfonates were investigated. Of all surface active compounds, those with a 2-hydroxypropyl (HP) moiety in the molecules were found more surface-active than the corresponding compounds without it.

Poly[N-(9-fluorenylmethoxycarbonyl)-L-phenylalanine] (PN9FPA) films with good fluorescence properties and good solubility were prepared electrochemically by direct anodic oxidation of N-(9-fluorenylmethoxycarbonyl)-L-phenylalanine (N9FPA) in boron trifluoride diethyletherate (BFEE). The structures of the monomer and the polymers were characterized and evaluated with IR. The fluorescence spectra indicated that PN9FPA films were blue-light emitters.

Poly(N-(9-fluorenylmethoxycarbony)-glycine) (PFG) film was first synthesized on platinum wire by direct anodic oxidation of N-(9-fluorenylmethoxycarbony)-glycine (FG) in boron trifluoride diethyl etherate (BFEE). The oxidation potential of FG in BFEE was only 0.4 V vs. Pt. Therefore, BFEE can be an ideal supporting electrolyte for polymerization of FG. Scanning electron microscopy showed the morphology of PFG. The structure of PFG film was studied by FT-IR spectroscopy.

To prevent environmental pollution and leakage accident, a hypergolic vapor monitoring instrument based on electrochemistry is discussed in this paper. The electrochemical sensor is designed to detect hydrazine compounds of 10-6 level in real time .The monitoring instrument based on electrochemical sensors shows its advantage of hign specificity and fine stability .