79095-51-5Relevant articles and documents
The proposed structures of phenolic compounds isolated from Piper betle L. differ from those of the compounds obtained by total synthesis
Noshita, Toshiro,Sato, Tatsuya,Iwayama, Takahito,Yamada, Yohei,Ouchi, Hidekazu
, p. 3787 - 3793 (2021)
We describe the syntheses of phenolic compounds, 4-[(1E, 3E, 5E)?6-(4-octyloxyphenyl)hexa-1,3,5-trien-1-yl]benzene-1,2-diol (1) and 3-(n-dodecyloxy) phenol (2), isolated from Piper betle. The triene moiety of 4-[(1E, 3E, 5E)?6-(4-octyloxyphenyl)hexa-1,3,5
Mesogenic heterocycles derived from quinoxaline Schiff Bases
Kuo, Hsiu-Ming,Ko, Wan-Ping,Hsu, Yu-Te,Lee, Gene-Hsiang,Lai, Chung K.
, p. 6321 - 6333 (2016/09/23)
Three new series of heterocyclic quinoxaline Schiff Bases 1–2 were prepared, characterized and their mesomorphic properties were investigated. These compounds 1 and 2 are in fact geometric isomers in which an imine moiety (e.g., [sbnd]C[dbnd]N) is inversely incorporated into quinoxaline, leading to an opposite local dipole. Two single crystallographic structures 1 (m=8, n=8) and 2a (m=12, n=8) were determined by X-ray crystallographic analysis in order to understand the effect of mesomorphic properties. Weak H-bonds, CH–π and π–π interactions were found in both crystals, which were attributed to the formation of mesomorphic behavior. Variable temperature FT-IR experiments were performed to confirm the induced H-bonds. All series?of compounds 1–2 exhibited N/SmC or SmC phases, which were identified by optical microscope and confirmed by powder X-ray diffraction experiments. Compounds 2a have a slightly wider range of mesophase temperatures than that of compounds 1 and 2b.
Discotic liquid crystals of transition metal complexes 45?: Parity effect of the number of d-electrons on stacking distances in the columnar mesophases of octakis-(M-alkoxyphenoxy)phthalocyaninato metal(II) complexes
Sato, Hiroyuki,Igarashi, Kensaku,Yama, Yoshitaka,Ichihara, Masahiro,Itoh, Eiji,Ohta, Kazuchika
, p. 1148 - 1158 (2013/01/15)
We have synthesized 34 novel homologous discotic liquid crystals, octakis(m-alkoxyphenoxy)phthalocyaninato metal(II) {abbreviated as (m-C nOPhO)8PcM (M = Co(1), Ni(2), Cu(3), Zn(4) and H 2(5); n = 8(a), 10(b), 12(c), 14(d)