167567-16-0Relevant academic research and scientific papers
Photoactive [2]rotaxanes: Structure and photophysical properties of anthracene- and ferrocene-stoppered [2]rotaxanes
Benniston, Andrew C.,Harriman, Anthony,Lynch, Vincent M.
, p. 5275 - 5291 (1995)
The structures of several one- and two-station [2]rotaxanes have been probed in both solid and solution phases. It is shown that the cyclophane, comprising two 4,4′-bipyridinium dications linked via 1,4-xylyl groups, resides preferentially over a dialkoxy
Convergent chemical synthesis of the pentasaccharide repeating unit of the O-antigen from: E. coli O158
Mitra, Ankita,Mukhopadhyay, Balaram
, p. 85135 - 85141 (2016)
Synthesis of the pentasaccharide repeating unit of the O-antigen from E. coli O158 through a convergent [3 + 2] strategy is reported. Synthesis of the crucial β-ManNAc moiety was achieved from a β-Glc derivative through inversion of the 2-position by an azide nucleophile in excellent yield. The non-reducing end disaccharide α-d-Gal-(1→3)-β-d-GlcNAc was formed through activation of the thioglycoside Gal donor in a chemoselective manner. A late stage TEMPO-mediated oxidation was used to install the desired uronic acid moiety. The required glycosylations were accomplished through activation of thioglycosides using NIS in the presence of H2SO4-silica with good to excellent yields and stereoselectivity.
LIQUID CRYSTALLINE COMPOUND, LIQUID CRYSTALLINE COMPOSITION, ANISOTROPICALLY LIGHT-ABSORBING FILM, AND LIQUID CRYSTAL DISPLAY DEVICE
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Paragraph 0243; 0245, (2013/03/26)
Provided is a novel azo liquid-crystal compound that is capable of orientation with a high degree of orientation order The liquid-crystal compound denoted by general formula I) below:wherein each of R1 and R2 denotes a hydrogen atom,
