C07C43/23

PROCESS FOR PRODUCING PARA-EUGENOL AND/OR ORTHO-EUGENOL
20230118184 · 2023-04-20 · ·

The present invention relates to a process for manufacturing para-eugenol and/or ortho-eugenol, comprising a step (i) of deallylation of at least one compound of formula (I):

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in which R.sub.1 and R.sub.2 are different, and are chosen from the group consisting of hydrogen and an allyl group (—CH.sub.2—CH═CH.sub.2)

VICINAL DIOL ETHER DERIVATIVES OF POLYETHER POLYMERS

The invention relates to vicinal diol ether derivatives of certain polyether polymers, compositions comprising the same, and methods of making the same via reaction with substituted or unsubstituted epoxides, and methods of using the same.

LOW-PRESSURE DEPOLYMERIZATION OF LIGNOCELLULOSIC BIOMASS

Disclosed herein are systems and methods of depolymerizing a lignin component of a lignin-containing material. The method comprising contacting the lignin-containing material with a solvent and optionally a catalyst at a temperature in the range of 180-300° C. and at a maximum operating pressure of less than 10 barG during the depolymerization of the lignin component of the material and collecting at least one volatile stream comprising one or more depolymerized lignin products. In an embodiment, the step of contacting is carried out in a reactive distillation reactor, and the step of collecting comprises concurrently collecting at least one volatile stream via distillation apparatus connected to the reactive distillation reactor, at least one of the one or more depolymerized lignin products comprises a substituted phenol having the following general formula: (I) wherein R.sub.1 is H, methyl, ethyl, n-propyl, propenyl, or allyl, and R.sub.2 and R.sub.3 are independently selected from H or methoxy group.

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LOW-PRESSURE DEPOLYMERIZATION OF LIGNOCELLULOSIC BIOMASS

Disclosed herein are systems and methods of depolymerizing a lignin component of a lignin-containing material. The method comprising contacting the lignin-containing material with a solvent and optionally a catalyst at a temperature in the range of 180-300° C. and at a maximum operating pressure of less than 10 barG during the depolymerization of the lignin component of the material and collecting at least one volatile stream comprising one or more depolymerized lignin products. In an embodiment, the step of contacting is carried out in a reactive distillation reactor, and the step of collecting comprises concurrently collecting at least one volatile stream via distillation apparatus connected to the reactive distillation reactor, at least one of the one or more depolymerized lignin products comprises a substituted phenol having the following general formula: (I) wherein R.sub.1 is H, methyl, ethyl, n-propyl, propenyl, or allyl, and R.sub.2 and R.sub.3 are independently selected from H or methoxy group.

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CHIRAL MULTIDENTATE LIGAND, AND APPLICATION THEREOF IN ASYMMETRIC HYDROGENATION
20230124576 · 2023-04-20 ·

Disclosed are a chiral multidentate ligand (I), a preparation, and an application thereof. In this method, compound (M1) is subjected to condensation with compound (M2) followed by amine deprotection in the presence of a deprotection reagent to obtain compound (M4). Compound (1) is subjected to deprotonation by butyl lithium and phosphorization followed by dimethylamino group substitution to produce compound (3). The compound (3) and the compound (M4) are reacted in the presence of triethylamine to produce chiral multidentate ligands.

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CHIRAL MULTIDENTATE LIGAND, AND APPLICATION THEREOF IN ASYMMETRIC HYDROGENATION
20230124576 · 2023-04-20 ·

Disclosed are a chiral multidentate ligand (I), a preparation, and an application thereof. In this method, compound (M1) is subjected to condensation with compound (M2) followed by amine deprotection in the presence of a deprotection reagent to obtain compound (M4). Compound (1) is subjected to deprotonation by butyl lithium and phosphorization followed by dimethylamino group substitution to produce compound (3). The compound (3) and the compound (M4) are reacted in the presence of triethylamine to produce chiral multidentate ligands.

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SUBSTITUTED HYDROXYSTILBENE COMPOUNDS AND DERIVATIVES SYNTHESIS AND USES THEREOF

The present disclosure relates to substituted hydroxystilbene compounds and derivatives, specifically 2-substituted hydroxystilbene compounds and derivatives, the synthesis of such compounds and their use in therapy.

SUBSTITUTED HYDROXYSTILBENE COMPOUNDS AND DERIVATIVES SYNTHESIS AND USES THEREOF

The present disclosure relates to substituted hydroxystilbene compounds and derivatives, specifically 2-substituted hydroxystilbene compounds and derivatives, the synthesis of such compounds and their use in therapy.

SUBSTITUTED HYDROXYSTILBENE COMPOUNDS AND DERIVATIVES SYNTHESIS AND USES THEREOF

The present disclosure relates to substituted hydroxystilbene compounds and derivatives, specifically 2-substituted hydroxystilbene compounds and derivatives, the synthesis of such compounds and their use in therapy.

BIO-BASED POLYMERS FROM RAW LIGNOCELLULOSIC BIOMASS

Disclosed herein is a bio-based copolymer comprising in polymerized form (i) at least one polymerizable bio-based monomer containing one phenolic hydroxyl group which has been derivatized to provide at least one polymerizable functional group which is an ethylenically unsaturated functional group (such as a [meth]acrylate group), where the precursors of the polymerizable bio-based monomers are derived from raw lignin-containing biomass, and (ii) at least one ion-conducting co-monomer other than the bio-based monomer. Also disclosed herein are binders comprising the bio-based copolymer, electrodes comprising the binder, polymer electrolytes comprising the bio-based copolymer and an electrochemical device comprising an electrode in electrical contact with a polymer electrolyte, wherein at least one of the electrode and the polymer electrolyte comprises the bio-based copolymer.