Patent classifications
C07B41/06
POLYMER-SUPPORTED TRANSITION CATALYST
A long life catalyst is provided that is conveniently and inexpensively capable of being produced and that is highly active and has inhibited metal leakage. According to aspects of the present invention, a catalyst is provided that includes: a polymer including a plurality of first structural units and a plurality of second structural units; and metal acting as a catalytic center, wherein at least part of the metal is covered with the polymer, each of the plurality of first structural units has a first atom constituting a main chain of the polymer and a first substituent group bonded to the first atom, a second atom included in each of the plurality of second structural units is bonded to the first atom, and the second atom is different from the first atom, or at least one of all substituent groups on the second atom is different from the first substituent group.
POLYMER-SUPPORTED TRANSITION CATALYST
A long life catalyst is provided that is conveniently and inexpensively capable of being produced and that is highly active and has inhibited metal leakage. According to aspects of the present invention, a catalyst is provided that includes: a polymer including a plurality of first structural units and a plurality of second structural units; and metal acting as a catalytic center, wherein at least part of the metal is covered with the polymer, each of the plurality of first structural units has a first atom constituting a main chain of the polymer and a first substituent group bonded to the first atom, a second atom included in each of the plurality of second structural units is bonded to the first atom, and the second atom is different from the first atom, or at least one of all substituent groups on the second atom is different from the first substituent group.
LIGNIN PROCESSING
A method of depolymerising a lignin includes oxidising the lignin to provide an oxidised lignin wherein benzylic —OH of β-O-4 linkages have been converted to carbonyl. The oxidised lignin is depolymerised with a metal selected from the group consisting of zinc, magnesium, aluminium and titanium or mixtures thereof, in the presence of an ammonium salt or carbon dioxide. Also described are methods for manufacturing phenolic products from lignin and a method for the cleavage of a β-O-4 linkage in a substrate.
LIGNIN PROCESSING
A method of depolymerising a lignin includes oxidising the lignin to provide an oxidised lignin wherein benzylic —OH of β-O-4 linkages have been converted to carbonyl. The oxidised lignin is depolymerised with a metal selected from the group consisting of zinc, magnesium, aluminium and titanium or mixtures thereof, in the presence of an ammonium salt or carbon dioxide. Also described are methods for manufacturing phenolic products from lignin and a method for the cleavage of a β-O-4 linkage in a substrate.
BISPHOSPHITES HAVING AN UNSYMMETRIC OUTER BIPHENOL UNIT
Bisphosphites having at least one unsymmetric outer biphenol unit are useful for the hydroformylation of an olefin.
BISPHOSPHITES HAVING AN UNSYMMETRIC OUTER BIPHENOL UNIT
Bisphosphites having at least one unsymmetric outer biphenol unit are useful for the hydroformylation of an olefin.
METHOD FOR PRODUCING GLYCERIC ACID CARBONATE
The present invention relates to a method for preparing a compound of the formula (I) with a specific definition of the substituent R.sub.3
##STR00001##
a mixture and also a corresponding application/use.
METHOD FOR PRODUCING GLYCERIC ACID CARBONATE
The present invention relates to a method for preparing a compound of the formula (I) with a specific definition of the substituent R.sub.3
##STR00001##
a mixture and also a corresponding application/use.
ELECTROCHEMICAL DEBLOCKING SOLUTION FOR ELECTROCHEMICAL OLIGOMER SYNTHESIS ON AN ELECTRODE ARRAY
There is disclosed an electrochemical deblocking solution for use on an electrode microarray. There is further disclosed a method for electrochemical synthesis on an electrode array using the electrochemical deblocking solution. The solution and method are for removing acid-labile protecting groups for synthesis of oligonucleotides, peptides, small molecules, or polymers on a microarray of electrodes while substantially improving isolation of deblocking to active electrodes. The method comprises applying a voltage or a current to at least one electrode of an array of electrodes. The array of electrodes is covered by the electrochemical deblocking solution.
ELECTROCHEMICAL DEBLOCKING SOLUTION FOR ELECTROCHEMICAL OLIGOMER SYNTHESIS ON AN ELECTRODE ARRAY
There is disclosed an electrochemical deblocking solution for use on an electrode microarray. There is further disclosed a method for electrochemical synthesis on an electrode array using the electrochemical deblocking solution. The solution and method are for removing acid-labile protecting groups for synthesis of oligonucleotides, peptides, small molecules, or polymers on a microarray of electrodes while substantially improving isolation of deblocking to active electrodes. The method comprises applying a voltage or a current to at least one electrode of an array of electrodes. The array of electrodes is covered by the electrochemical deblocking solution.