This include (i) copolymerization through the addition of another reactive group to the phenolic group, such as epoxy resin, bisoxazoline, or hydorxyphenylmaleimide [15]; (ii) introducing another polymerizable group into the benzoxazine structure, such as
ethynyl or phenyl
ethynyl, nitrile, propargyl, and allyl groups [14, 16]; (iii) preparing polymer alloys of PBz with high-performance polymers or elastomers; (iv) hybridization with inorganic materials, such as layered clay and metal oxide nanoparticles; and (v) designing novel main-chain PBz precursors [17].
In the field of conjugated polyelectrolytes, classified by main-chain structure, basically three classes [9-11] of I-conjugated polyelectrolytes are mostly used, as illustrated in Scheme-1: (i) polymers made up of alternating aryl and ethylene units, the poly(arylene-vinylene)s (PAVs) [12, 13], (ii) polymers made of alternating aryl and
ethynyl units, the poly(arylene-ethynylene)s (PAEs) [14, 15], and polymers consisting of aromatic rings directly linked to each other in a linear manner, the poly(arylene)s (PAs) [16, 17].
Another approach is the preparation of monomers containing other polymerizable groups, such as
ethynyl, phenylethynyl, nitrile, propargyl, and allyl [12, 15-17].
Lovings et al., "
Ethynyl flavones, highly potent, and selective inhibitors of CYP1A1," Chemical Research in Toxicology, vol.
zebrafish experienced complete sex reversal when exposed to
ethynyl"The first attempt at real reform was in 1977," El-Sisi said in a speech aired by state television during the launch of an
ethynyl plant in the coastal city of Alexandria.
Considering the linearity values and LOD values of DRS, the both proposed methods were more sensitive than reported RP-HPLC methods for the assay of the drug alone [5] and in combination with
ethynyl estradiol in pharmaceutical preparations [3, 4].
Some organic compounds, including aryl
ethynyl attached to triarylamine are used in electrophotography and light emission devices, including organic solar cells, due to their unique characteristics.
Substitution of the fluorine atoms bonded to the boron center in 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (F-BODIPY) compounds with
ethynyl or aryl linkages can be achieved through either Grignard or lithium organometallic reagents.
This tiny green contour explains why compound 4 ([IC.sub.50] = 20 nM, with an
ethynyl group on C6) was more active than compound 8 ([IC.sub.50] = 300 nM, with a methyl group on C6).
Obata, "Intrahepatic cholestasis and hyperbilirubinemia in
ethynyl estradiol and chlorpromazine-treated rats," Gastroenterologia Japonica, vol.
The pill consists of two components,
ethynyl oestrogen and progestin, and was said to have a 2% failure rate.