Methods are provided for the synthesis of cannabinoids, including cannabidiol (CBD), cannabinol (CBN), cannabichromene (CBC), cannabidiolic acid (CBDA), cannabigerol (CBG), cannabigerolic acid (CBGA), cannabidivarin (CBDV), cannabidibutol (CBD-C4), dihydrocannabidiol (DCBD), tetrahydrocannabivarin (THCV), analogs thereof, and precursors to the foregoing. One method employs phloroglucinol or a phloroglucinol analog as a starting material. The syntheses are stereospecific, efficient, selective, and cost-effective, with little or no potential for generation of THC (()-trans-.sup.9-tetrahydro-cannabinol) or any other psychoactive side product. Telescoped syntheses are also provided, as are new cannabinoids, pharmaceutical formulations, and methods of use.

The present invention relates to a monomer composition for synthesizing recycled plastic which comprises an aromatic diol compound, wherein a ratio of aromatic diol compound derivative impurity according to Equation 1 is 0.5% or less, wherein the aromatic diol compound has a purity of 99.25% or more, and the monomer composition for synthesizing recycled plastic is recovered from a polycarbonate-based resin, a preparation method thereof, and a recycled plastic, and molded product using the same.

The present invention relates to a monomer composition for synthesizing recycled plastic which comprises an aromatic diol compound, wherein a ratio of aromatic diol compound derivative impurity according to Equation 1 is 0.5% or less, wherein the aromatic diol compound has a purity of 99.25% or more, and the monomer composition for synthesizing recycled plastic is recovered from a polycarbonate-based resin, a preparation method thereof, and a recycled plastic, and molded product using the same.

Disclosed herein are improved methods for the synthesis of honokiol, as well as methods for the synthesis of 3,3-di-tert-butyl-5,5-dimethyl-[1,1-biphenyl]-2,4-diol, 3,5-dimethyl-[1,1-biphenyl]-2,4-diol, and 2,4-dimethoxy-3,5-dimethyl-1,1-biphenyl, 3,3,5,5-tetra-tert-butyl-[1,1-biphenyl]-2,4-diol, and certain tetrasubstituted bisphenols, and uses therefor.

Disclosed herein are improved methods for the synthesis of honokiol, as well as methods for the synthesis of 3,3-di-tert-butyl-5,5-dimethyl-[1,1-biphenyl]-2,4-diol, 3,5-dimethyl-[1,1-biphenyl]-2,4-diol, and 2,4-dimethoxy-3,5-dimethyl-1,1-biphenyl, 3,3,5,5-tetra-tert-butyl-[1,1-biphenyl]-2,4-diol, and certain tetrasubstituted bisphenols, and uses therefor.

Methods are provided for the synthesis of cannabinoids, including cannabidiol (CBD), cannabinol (CBN), cannabichromene (CBC), cannabidiolic acid (CBDA), cannabigerol (CBG), cannabigerolic acid (CBGA), cannabidivarin (CBDV), cannabidibutol (CBD-C4), dihydrocannabidiol (DCBD), tetrahydrocannabivarin (THCV), analogs thereof, and precursors to the foregoing. One method employs phloroglucinol or a phloroglucinol analog as a starting material. The syntheses are stereospecific, efficient, selective, and cost-effective, with little or no potential for generation of THC (()-trans-.sup.9-tetrahydro-cannabinol) or any other psychoactive side product. Telescoped syntheses are also provided, as are new cannabinoids, pharmaceutical formulations, and methods of use.

Methods are provided for the synthesis of cannabinoids, including cannabidiol (CBD), cannabinol (CBN), cannabichromene (CBC), cannabidiolic acid (CBDA), cannabigerol (CBG), cannabigerolic acid (CBGA), cannabidivarin (CBDV), cannabidibutol (CBD-C4), dihydrocannabidiol (DCBD), tetrahydrocannabivarin (THCV), analogs thereof, and precursors to the foregoing. One method employs phloroglucinol or a phloroglucinol analog as a starting material. The syntheses are stereospecific, efficient, selective, and cost-effective, with little or no potential for generation of THC (()-trans-.sup.9-tetrahydro-cannabinol) or any other psychoactive side product. Telescoped syntheses are also provided, as are new cannabinoids, pharmaceutical formulations, and methods of use.

The present invention refers to a process for preparing carbonyl-containing compounds of formula (Ia), (Ib) or (Ic):

##STR00001##

from Bisphenol A-based Polycarbonate and appropriate nucleophiles in the presence of imidazole or a derivative thereof as catalyst and an organic solvent.

The present invention refers to a process for preparing carbonyl-containing compounds of formula (Ia), (Ib) or (Ic):

##STR00001##

from Bisphenol A-based Polycarbonate and appropriate nucleophiles in the presence of imidazole or a derivative thereof as catalyst and an organic solvent.

4-Aralkylphenols and derivatives thereof expressed by general formulas (6) and (7) are useful for producing trisphenols. ##STR00001##