By distillation, RFO (CF.sub.2 cfxo) NCF = CF2 (1) (RF) represents a perfluoroalkyl group, X represents a fluorine atom or a trifluoromethyl group, and N represents a 0 to 20 number. From the perfluorovinyl ether shown in the figure, the hydrogen fluoride adduct of the perfluorovinyl...
formula (I), wherein hydrogen cations (H<+>) of hydrophobic zeolite in said zeolite catalyst are partially replaced with certain metal ions or ammonium ions:wherein H represents a hydrogen cation; M represents one or more cations selected from the group consisting of metal ions of IA Group,...
Compounds of the formula ##STR1## in which R represents hydrogen or a methyl group, Y1 represents an optionally branched alkylene radical with 1 to 6 C atoms, Y2 re
Compounds useful in the treatment of Alzheimer's disease, senile dementia, or memory disorders which have the formula ##STR1## in which R represents a hydrogen atom, a linear, branched or cyclic alkyl
A vinyl monomer represented by formula II (wherein X represents H or methyl; Y represents fluorine, chlorine, an alkyl, an alkenyl, an aryl, an ether, an acyl, or an ester) (e.g. vinyl acetate) may further be incorporated into the monomer compsn. The low dielectric polymeric material ...
E represents an ether linkage; K represents a ketone linkage; D represents a direct linkage; m represents a meta substituted aromatic ring; N represents a naphthalene ring; and S represents a sulphone linkage except where it is used as a prefix to the polymer trivial name where it represents...
The graph represents the average percentage (±S.D.) of cells containing more than 15 LC3 positive puncta (n = 3). Average of 100 cells was counted per each experimental condition in each experiment. Data represent the mean (±S.D.) of three independent experiments. Statistical ...
8-Nonenoic acid is a medium-chain fatty acid with the molecular formula C9H16O2. It is mainly a starting or intermediate material for reactions found in nature [29,30] or in the industry [31,32]. However, it is found as an end product in substances secreted by different animals as a...
Which of the following represents the general formula for primary alcohols? (a) R2CH2OH (b) R2CHO (c) R2CHOH (d) RCH2OH (e) RCH3OH Which of these compounds is a tertiary amide? Which of these ...
One of the main features distinguishing a bond from a stock is that as the holder of a bond, you do not have an ownership stake in the company. The bond represents a debt obligation, and once it’s paid off, the issuer’s obligation to you ends. ...