Abstract: A method of making terephthalic acid via reductive coupling of two molecules of propiolic acid or propiolic acid derivatives is presented. The reductive coupling can be catalyzed by compounds comprising metals, and propiolic acid or propiolic acid derivatives can be produced from acetylene and carbon dioxide. At least 4 of the 8 carbons in the terephthalic acid are non-fossil-derived.

Abstract: The present invention relates to a process for preparing a porous metal organic framework comprising at least two organic compounds coordinated to at least one metal ion, which comprises the steps (a) oxidation of at least one anode comprising the metal corresponding to at least one metal ion in a reaction medium in the presence of at least one first organic compound which is an optionally substituted monocyclic, bicyclic or polycyclic saturated or unsaturated hydrocarbon in which at least two ring carbons have been replaced by heteroatoms selected from the group consisting of N, O and S to form a reaction intermediate comprising the at least one metal ion and the first organic compound; and (b) reaction of the reaction intermediate at a prescribed temperature with at least one second organic compound which coordinates to the at least one metal ion, with the second organic compound being derived from a dicarboxylic, tricarboxylic or tetracarboxylic acid.

Abstract: The present invention relates to porous metal organic frameworks comprising at least one at least bidentate organic compound L coordinated to at least one metal ion M, wherein L has at least one functional group G which bonds noncoordinatively to M and is selected from the group consisting of —SO3H and —PO3H2 and their analogues. The invention further provides processes for their preparation and also their use.

Abstract: A reductive system including a silane, preferably PMHS, and an active zinc compound, which is monomeric and not a hydride, wherein a reduction of a carbonyl substrate to a corresponding alcohol is achievable.

Abstract: Novel ligated compounds of tin, titanium, and zinc are useful as metal oxide CVD precursor compounds without the detriments of extreme reactivity yet maintaining the ability to produce high quality metal oxide coating by contact with heated substrates.

Abstract: Macrocyclic derivatives of 1,4,7,10-tetraazacyclododecane of general formula (I) hereinbelow, wherein A is a group of formula (II) hereinbelow, in which R is H or alkyl or optionally substituted benzyl or a H(OCH.sub.2 CH.sub.2).sub.1-4-, Me(OCH.sub.2 CH.sub.2).sub.1-4-, or Et(OCH.sub.2 CH.sub.2).sub.1-4- group, X or O--R.sub.1, in which R.sub.1 is H or alkyl, hydroxyalkyl, alkoxyalkyl, alkoxyhydroxyalkyl or a polyoxaalkyl group or X is --NR.sub.2 R.sub.3, in which R.sub.2 and R.sub.3 are H or alkyl, hydroxyalkyl, alkoxyalkyl or alkoxyhydroxyalkyl, and B.sub.1, B.sub.2 and B.sub.3 have the same meanings as A or are H or a group of formula (III) hereinbelow, in which R.sub.4 is H or alkyl, Y is a O--R.sub.5 group, wherein R.sub.5 is H or alkyl, hydroxyalkyl, alkoxyalkyl, alkoxyhydroxyalkyl or a polyoxaalkyl group, or Y is a --NR.sub.6 R.sub.7 group, wherein R.sub.6 and R.sub.

Abstract: Zinc(II) complexes in which at least one ligand is provided by a compound being:(1) 3-hydroxy-4-pyrone or a 3-hydroxy-4-pyrone in which one or more of the hydrogen atoms attached to ring carbon atoms are replaced by an aliphatic hydrocarbon group of 1 to 6 carbon atoms; or(2) a 3-hydroxypyrid-2-one or 3-hydroxypyrid-4-one in which the hydrogen atom attached to the nitrogen atom is replaced by an aliphatic acyl group, by an aliphatic hydrocarbon group of 1 to 6 carbon atoms, or by an aliphatic hydrocarbon group substituted by one or, except in the case of ionizable groups, more than one substituent selected from aliphatic acyl, alkoxy, aliphatic amine, aliphatic amide, carboxy, aliphatic ester, halogen, hydroxy and sulpho groups and, optionally, in which one or more of the hydrogen atoms attached to ring carbon atoms are replaced by one of said substituents, by an aliphatic hydrocarbon group of 1 to 6 carbon atoms, or by an aliphatic hydrocarbon group substituted by an alkoxy, aliphatic ester, halogen or hydro