Patent classifications
C07C39/08
METHOD FOR DISCHARGING AN OXIDISABLE COMPOUND IN THE LIQUID STATE
A process for unloading a container containing an oxidizable compound having a melting point T.sub.m greater than 15° C. is described. This process comprises the steps consisting in heating the container using a heating means until the oxidizable compound is liquid, the temperature of the heating means remaining less than or equal to T.sub.m+105° C., and then unloading the oxidizable compound in the liquid state. A process for handling such an oxidizable compound, comprising this unloading step, and also a device enabling this process to be carried out, are also proposed.
METHOD FOR DISCHARGING AN OXIDISABLE COMPOUND IN THE LIQUID STATE
A process for unloading a container containing an oxidizable compound having a melting point T.sub.m greater than 15° C. is described. This process comprises the steps consisting in heating the container using a heating means until the oxidizable compound is liquid, the temperature of the heating means remaining less than or equal to T.sub.m+105° C., and then unloading the oxidizable compound in the liquid state. A process for handling such an oxidizable compound, comprising this unloading step, and also a device enabling this process to be carried out, are also proposed.
Composition for control and inhibition of polymerization of monomers, and method of use and preparation thereof
The present invention relates to an additive composition for controlling and inhibiting polymerization of monomers, wherein the composition comprises a combination of (a) a phenol compound comprising catechol compound with (b1) an aliphatic tertiary amine, (b2) oxide treated derivative of the aliphatic tertiary amine, or (b2) a mixture thereof, wherein the aliphatic tertiary amine contains one or more hydroxyl groups in the alkyl chain of the aliphatic tertiary amine. In one embodiment, the present invention also relates to a method for controlling and inhibiting polymerization of monomers by employing the additive composition of the present invention. In another embodiment, the present invention also relates to a method of using the additive composition of the present invention for controlling and inhibiting polymerization of monomers. In another embodiment, the present invention also relates to methods for controlling and inhibiting polymerization of monomers in a primary fractionator (or an ethylene plant), and for operating a primary fractionator, and for reducing fouling and polymer deposits in a primary fractionator, and to extend a run-length of a primary fractionator or of an ethylene plant.
Method of regulating circadian rhythm, and method of preparing circadian rhythm regulatory agent
Disclosed are a method of preparation and method of application of a circadian rhythm regulatory agent having as an active ingredient an alkylresorcinol represented by general formula (I) below and a circadian rhythm regulatory agent containing as an active ingredient an alkylresorcinol-containing extract from a cereal or a nut containing an alkylresorcinol of the following general formula (I). In the following general formula (I), R.sub.1 is a saturated or unsaturated alkyl group; and R.sub.2 is hydrogen or methyl. In general formula (I), R.sub.1 is preferably at the para-position with respect to R.sub.2, and R.sub.1 is preferably a saturated or unsaturated alkyl group having 15 to 27 carbon atoms. [Chem. 1] ##STR00001##
Method of regulating circadian rhythm, and method of preparing circadian rhythm regulatory agent
Disclosed are a method of preparation and method of application of a circadian rhythm regulatory agent having as an active ingredient an alkylresorcinol represented by general formula (I) below and a circadian rhythm regulatory agent containing as an active ingredient an alkylresorcinol-containing extract from a cereal or a nut containing an alkylresorcinol of the following general formula (I). In the following general formula (I), R.sub.1 is a saturated or unsaturated alkyl group; and R.sub.2 is hydrogen or methyl. In general formula (I), R.sub.1 is preferably at the para-position with respect to R.sub.2, and R.sub.1 is preferably a saturated or unsaturated alkyl group having 15 to 27 carbon atoms. [Chem. 1] ##STR00001##
CANNABINOID ANALOGS AND METHODS FOR THEIR PREPARATION
Provided herein are cannabinoid analogs, including halogenated cannabinoid analogs, hydroxylated cannabinoid analogs, deuterated cannabinoid analogs, and tritiated cannabinoid analogs. The cannabinoid analogs can be prepared by partial or total expression in modified host cells, such as recombinantly modified yeast cells, optionally in combination with chemical synthetic steps.
Method of Depolymerising Phenolic Polymers
The invention provides a method for depolymerising a phenolic polymer, the method comprising reacting the phenolic polymer with dimethylsulphoxide (DMSO) and a hydrogen halide. The phenolic polymer may be selected from the group consisting of lignin and derivatives thereof. The hydrogen halide may be HBr. The quantity of hydrogen halide per gram of phenolic polymer may be from 30 mmoles to 70 mmoles. The quantity of DMSO per gram of phenolic polymer may be from 0.1 mole to 1 mole. The reaction may be performed at a temperature of from 100 to 120° C. The reaction may be carried out for between 10 h and 14 h. The product of the reaction may comprise vanillin.
Method of Depolymerising Phenolic Polymers
The invention provides a method for depolymerising a phenolic polymer, the method comprising reacting the phenolic polymer with dimethylsulphoxide (DMSO) and a hydrogen halide. The phenolic polymer may be selected from the group consisting of lignin and derivatives thereof. The hydrogen halide may be HBr. The quantity of hydrogen halide per gram of phenolic polymer may be from 30 mmoles to 70 mmoles. The quantity of DMSO per gram of phenolic polymer may be from 0.1 mole to 1 mole. The reaction may be performed at a temperature of from 100 to 120° C. The reaction may be carried out for between 10 h and 14 h. The product of the reaction may comprise vanillin.
Compositions comprising hydroquinone and catechol, method for preparing these compositions
The present invention describes compositions comprising at least one compound chosen from hydroquinone and catechol, characterised in that it further comprises between 0.1 and 10,000 ppm of at least one compound chosen from 2-(alkoxy)phenol, 4-(alkoxy)phenol, 2-(alkyl)phenol, 4-(alkyl)phenol, (alkyl)catechol and (alkyl)hydroquinone. Another aspect of this invention concerns a method for preparing a composition comprising at least one compound chosen from hydroquinone and catechol according to the invention, characterised in that it comprises a step (a) of reacting the phenol with hydrogen peroxide in the presence of a catalyst, in a solvent comprising an alcohol.
Compositions comprising hydroquinone and catechol, method for preparing these compositions
The present invention describes compositions comprising at least one compound chosen from hydroquinone and catechol, characterised in that it further comprises between 0.1 and 10,000 ppm of at least one compound chosen from 2-(alkoxy)phenol, 4-(alkoxy)phenol, 2-(alkyl)phenol, 4-(alkyl)phenol, (alkyl)catechol and (alkyl)hydroquinone. Another aspect of this invention concerns a method for preparing a composition comprising at least one compound chosen from hydroquinone and catechol according to the invention, characterised in that it comprises a step (a) of reacting the phenol with hydrogen peroxide in the presence of a catalyst, in a solvent comprising an alcohol.