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2808-33-5

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2808-33-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2808-33-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,8,0 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2808-33:
(6*2)+(5*8)+(4*0)+(3*8)+(2*3)+(1*3)=85
85 % 10 = 5
So 2808-33-5 is a valid CAS Registry Number.
InChI:InChI=1/C21H32O2/c1-5-6-7-11-18-14-20(22)19(21(23)15-18)13-12-17(4)10-8-9-16(2)3/h9,12,14-15,22-23H,5-8,10-11,13H2,1-4H3/b17-12+

2808-33-5Relevant articles and documents

PROCESSES FOR THE PREPARATION OF ORTHO-ALLYLATED HYDROXY ARYL COMPOUNDS

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Paragraph 00261; 00263; 00348; 00354-00355, (2021/12/08)

The present application describes process for preparing an ortho-allylated hydroxy aryl compounds such as compounds of Formula (I) by reacting an allylic alcohol with a hydroxy aryl compound in the presence of aluminum compound selected from alumina and aluminum alkoxides and in a non-protic solvent wherein at least one carbon atom ortho to the hydroxy group in the hydroxy aryl compound is unsubstituted. The present application also includes compounds of Formula (I).

PREPARING AND MODIFYING MEROTERPENE POLYKETIDES, KETONES, AND LACTONES FOR CANNABINOID SEMISYNTHESIS

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Page/Page column 29, (2021/08/20)

Provided herein are processes, including semi-synthetic, and synthetic processes for preparing cannabinoids, and cannabinoid compositions provided thereby.

CATALYTIC CANNABIGEROL PROCESSES AND PRECURSORS

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, (2021/10/11)

The present disclosure relates to cannabigerol sulfonate esters and processes for their use to prepare cannabigerol (CBG) and related compounds, including cannabigerobutol (CBGB), cannabigerovarin (CBGV), and cannabigerophorbol (CBGP). In a preferred embodiment, the cannabigerol sulfonate ester is (E)-4-(3, 7-5 dimethylocta-2,6-dienyl)-3,5-bis(trimetbylsilyloxy)phenyl trifluoromethanesulfonate. In a preferred process, the trifluoromethansulfonate leaving group is replaced by an alkyl group. The disclosure also relates to the use of catalysts and catalytic processes for the preparation of cannabigerol and related compounds from the cannabigerol sulfonate esters.

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