A method for acylation of an aromatic compound, comprising reacting an aromatic compound and an acylating agent of the carboxylic acid type, in the presence of a Lewis acid and of a silylated reagent selected from the group consisting of halosilanes and halosiloxanes.
QSAR equation with 13C NMR chemicalshifts as independent parameters. The key step of the synthesis is the formation of substituted 2‐phenoxybenzoic acids by Ullmann reaction followed by intramolecular Friedel‐Crafts acylation, leading to methyl‐, carboxy‐, nitro‐, cyano‐, and aminoxanthones as a test set for QSAR investigations. Spectroscopic data (1H and 13C chemicalshifts, IR, UV) of these xanthones
BISPHENOL HAVING FLUORENE SKELETON, METHOD FOR PRODUCING SAME, POLYARYLATE RESIN, (METH)ACRYLATE COMPOUND AND EPOXY RESIN WHICH ARE DERIVED FROM THE BISPHENOL
申请人:TAOKA CHEMICAL CO., LTD.
公开号:US20190055180A1
公开(公告)日:2019-02-21
Provided are a bisphenol represented by the general formula (1), a method for producing the bisphenol, and a polyarylate resin, a (meth)acrylate compound and an epoxy resin which are derived from the bisphenol. In the formula (1), R
1
to R
4
are the same or different, and each represent an alkyl group, an aryl group or a halogen atom, n
1
and n
2
are the same or different, and each represent an integer of 1 to 4, and k
1
to k
4
are the same or different, and each represent 0 or an integer of 1 to 4. When at least one of k
1
to k
4
is 2 or more, corresponding R
1
to R
4
may be the same or different.
4-aminobiphenyl derivative arylamine compounds are formed by providing an iodinated organic compound; substituting the iodinated organic compound at carboxylic acid groups thereof to provide ester protecting groups; conducting an Ullman condensation reaction to convert the product of step (ii) into an arylamine compound; and conducting a Suzuki coupling reaction to add an additional phenyl group to the arylamine compound in the 4-position relative to the nitrogen.
A method of capturing water from a gaseous composition comprising water vapour (e.g., air), the method comprising:
(a) providing a metal-organic material; and
(b) contacting the metal-organic material with water and/or water vapour;
wherein upon contact with water and/or water vapour the material switches from a first state to a second state wherein the second state is able to retain a higher amount of water than the first state.