开发了一种基于多米诺胺胺氧化反应的概念上新颖的仿生策略,用于在无金属条件下使用分子氧作为氧化剂对醛进行直接酰胺化。9-氨基芴衍生物可作为吡ido胺-5'-磷酸盐的等效物,用于高效,化学选择性和操作简单的胺转移加氧反应。实现了前所未有的RNH转移,涉及仲胺生成仲酰胺。在存在18 Ò 2,18 O形酰胺具有优异的(95%)的同位素纯度形成。
Utilization of Evaporation during the Crystallization Process: Self-Templation of Organic Parallelogrammatic Pipes
作者:Myungeun Seo、Jung Hak Kim、Gon Seo、Chae-Ho Shin、Sang Youl Kim
DOI:10.1002/chem.200801408
日期:2009.1.5
obtained by a drying‐mediated assembly process revealed that production of the L polymorph by polymorphic transition from the S polymorph resulted in evolution of a three‐dimensional structure when the alkyl group has more than 12 carbon atoms. Among the series of compounds, 12FH2 and 4‐tetradecyloxy‐2‐trifluoromethylbenzamide (14FH2) formed parallelogrammaticpipes with micrometer dimensions. An atomic
Naphthyridine-Based Helical Foldamers and Macrocycles: Synthesis, Cation Binding, and Supramolecular Assemblies
作者:Anne Petitjean、Louis A. Cuccia、Marc Schmutz、Jean-Marie Lehn
DOI:10.1021/jo702495u
日期:2008.4.1
cations bind to the one-turn helices and macrocycles to promote fibril formation and aggregation. Also, polyammonium substrates are able to tune the length of the overall helix assemblies and the rigidity of long oligomers. The reported data on one-turn, two-turn helices and macrocycles not only allows one to devise a model for the ion-controlled supramolecularassembly of such systems but also provides evidence
Method for forming an image and silver halide photographic light-sensitive material
申请人:FUJI PHOTO FILM CO., LTD.
公开号:EP0731380A1
公开(公告)日:1996-09-11
There is disclosed a silver halide photosensitive material and a method for forming an image, by the use of a color-developing agent of the type of carbonylhydrazone. The color-developing agent has satisfactory storage stability and capability for forming an image.
HAIR TREATMENT COMPOSITION AND HAIR COSMETIC FOR DAMAGED HAIR
申请人:Meiji Seika Kaisha, Ltd.
公开号:EP1602354A1
公开(公告)日:2005-12-07
The present invention intends to provide a composition for hair treatment containing γ-polyglutamic acid or a salt thereof, a hair cosmetic for damaged hair containing such a composition, and their uses. The composition for hair treatment containing γ-polyglutamic acid or a salt thereof and the hair cosmetic for damaged hair of the present invention have excellent improvement effects on the strength and frictional force of hair, so that they can provide tension, elasticity, or the like to damage hair to prevent or alleviate split hair and broken hair as well as improvements in combing and touch. Furthermore, they also exert effects of moisture retention inherent to γ-polyglutamic acid or a salt thereof, preventing or improving effects on the generation of dandruff on the basis of such effects, preventing effects on the feeling of stickiness or creak, and various effectiveness including appropriate residual tendency to hair in a simultaneous manner, respectively.
It has been desired to develop a highly preservative and antibacterial cosmetic composition that can easily be applied to both emulsion and non-emulsion type cosmetics. It has also been desired to develop a method of improving a preservative and/or antibacterial effect(s) of a cosmetic composition comprising polyorganosiloxane-containing epsilon-polylysine and thereby reducing the amount of antibacterial preservative agent to be used. There is provided a cosmetic composition comprising one or a combination of two or more of polyorganosiloxane-containing epsilon-polylysine compounds obtained by reacting epsilon-polylysine with polyorganosiloxane or a physiologically acceptable salt thereof, and polyhydric alcohol.