Patent classifications
C07C39/245
PROCESS FOR PRODUCING HYDROQUINONE AND DERIVATES
The present disclosure relates to an improved, environmentally friendly, process for producing compounds such as hydroquinone (benzene-1,4-diol) and its derivatives. The process can be carried out at ambient temperature and pressure using a recyclable copper catalyst and recyclable intermediate materials. The process generally entails reacting an aromatic compound such as benzene with hydrogen peroxide in the present of a pure elemental copper catalyst or a copper (I) salt catalyst to form oxidation product such as benzoquinone, and reducing the compound to hydroquinone or a hydroquinone derivative.
PROCESS FOR PRODUCING HYDROQUINONE AND DERIVATES
The present disclosure relates to an improved, environmentally friendly, process for producing compounds such as hydroquinone (benzene-1,4-diol) and its derivatives. The process can be carried out at ambient temperature and pressure using a recyclable copper catalyst and recyclable intermediate materials. The process generally entails reacting an aromatic compound such as benzene with hydrogen peroxide in the present of a pure elemental copper catalyst or a copper (I) salt catalyst to form oxidation product such as benzoquinone, and reducing the compound to hydroquinone or a hydroquinone derivative.
Process for producing hydroquinone and derivates
The present disclosure relates to an improved, environmentally friendly, process for producing compounds such as hydroquinone (benzene-1,4-diol) and its derivatives. The process can be carried out at ambient temperature and pressure using a recyclable copper catalyst and recyclable intermediate materials. The process generally entails reacting an aromatic compound such as benzene with hydrogen peroxide in the present of a pure elemental copper catalyst or a copper (I) salt catalyst to form oxidation product such as benzoquinone, and reducing the compound to hydroquinone or a hydroquinone derivative.
Process for producing hydroquinone and derivates
The present disclosure relates to an improved, environmentally friendly, process for producing compounds such as hydroquinone (benzene-1,4-diol) and its derivatives. The process can be carried out at ambient temperature and pressure using a recyclable copper catalyst and recyclable intermediate materials. The process generally entails reacting an aromatic compound such as benzene with hydrogen peroxide in the present of a pure elemental copper catalyst or a copper (I) salt catalyst to form oxidation product such as benzoquinone, and reducing the compound to hydroquinone or a hydroquinone derivative.
CANNABIDIOL COMPOSITIONS HAVING MODIFIED CANNABINOID PROFILES
The present disclosure relates to the preparation of a highly pure cannabidiol compound by a novel synthesis route. The cannabidiol compound can be prepared by an acid-catalyzed reaction of a di-halo olivetol with menthadienol, followed by two crystallization steps. The highly pure cannabidiol compound is produced in high yield, stereospecificity, or both, and shows exceedingly low levels of -9-tetrahydrocannabinol at the time of preparation and after storage.
CANNABIDIOL COMPOSITIONS HAVING MODIFIED CANNABINOID PROFILES
The present disclosure relates to the preparation of a highly pure cannabidiol compound by a novel synthesis route. The cannabidiol compound can be prepared by an acid-catalyzed reaction of a di-halo olivetol with menthadienol, followed by two crystallization steps. The highly pure cannabidiol compound is produced in high yield, stereospecificity, or both, and shows exceedingly low levels of -9-tetrahydrocannabinol at the time of preparation and after storage.
NON-FLUORINATED RESORCINOL AND HYDROQUINONE ANALOGS AS CURING AGENTS FOR FLUOROELASTOMERS
Compositions include a curing agent of Formula 1:
##STR00001## R.sub.1 and R.sub.5 are independently H, Cl, Br, C.sub.1-18 alkyl or alkoxy which may contain chlorine or bromine substitutions, or X. R.sub.2-R.sub.4 are independently OH, H, Cl, Br, C.sub.1-18 alkyl or alkoxy which may contain chlorine or bromine substitutions, or X. At least one of R.sub.2, R.sub.3, and R.sub.4 is OH. Not more than 3 of R.sub.1-R.sub.5 are Cl or Br. X is Formula 2 or Formula 3:
##STR00002## R.sub.6-R.sub.10 are independently H, Cl, Br, C.sub.1-18 alkyl or alkoxy which may contain chlorine or bromine substitutions, acetyl or methylsulfonyl which may be alkyl- or aryl-substituted or may contain chlorine or bromine substitutions, nitro, nitrile, keto, aceto, or sulfone. R.sub.11-R.sub.18 are independently H, Cl, Br, C.sub.1-18 alkyl or alkoxy which may contain chlorine or bromine substitutions, nitro, or nitrile, where one of R.sub.11-R.sub.18 is a single bond to (Y).sub.n. Y is SO.sub.2 or O and n is 0 or 1. At least one of R.sub.1-R.sub.5, is Cl, Br, C.sub.1-18 alkyl or alkoxy which may contain chlorine or bromine substitutions, or X. When X is present, at least one of R.sub.6-R.sub.18 is Cl, Br, C.sub.1-18 alkyl or alkoxy which may contain chlorine or bromine substitutions, nitro, nitrile, keto, aceto, or sulfone.