6909-05-3Relevant academic research and scientific papers
Photochemistry of Cannabidiol (CBD) Revised. A Combined Preparative and Spectrometric Investigation
Seccamani, Paolo,Franco, Chiara,Protti, Stefano,Porta, Alessio,Profumo, Antonella,Caprioglio, Diego,Salamone, Stefano,Mannucci, Barbara,Merli, Daniele
, p. 2858 - 2865 (2021/11/12)
Cannabis is a plant with an astonishing ability to biosynthesize cannabinoids, and more than 100 molecules belonging to this class have been isolated. Among them in recent years cannabidiol (CBD) has received the interest of pharmacology as the major nonpsychotropic cannabinoid with many potential clinical applications. Although the reactivity of CBD has been widely investigated, only little attention has been given to the possible photodegradation of this cannabinoid, and the data available in the literature are outdated and, in some cases, conflicting. The aim of the present work is providing a characterization of the photochemical behavior of CBD in organic solvents, through a detailed GC-MS analyses, isolation, and NMR characterization of the photoproducts obtained.
Antioxidant function of phytocannabinoids: Molecular basis of their stability and cytoprotective properties under UV-irradiation
Vacek, Jan,Vostalova, Jitka,Papouskova, Barbora,Skarupova, Denisa,Kos, Martin,Kabelac, Martin,Storch, Jan
, p. 258 - 270 (2021/02/05)
In this contribution, a comprehensive study of the redox transformation, electronic structure, stability and photoprotective properties of phytocannabinoids is presented. The non-psychotropic cannabidiol (CBD), cannabigerol (CBG), cannabinol (CBN), cannabichromene (CBC), and psychotropic tetrahydrocannabinol (THC) isomers and iso-THC were included in the study. The results show that under aqueous ambient conditions at pH 7.4, non-psychotropic cannabinoids are slight or moderate electron-donors and they are relatively stable, in the following order: CBD > CBG ≥ CBN > CBC. In contrast, psychotropic Δ9-THC degrades approximately one order of magnitude faster than CBD. The degradation (oxidation) is associated with the transformation of OH groups and changes in the double-bond system of the investigated molecules. The satisfactory stability of cannabinoids is associated with the fact that their OH groups are fully protonated at pH 7.4 (pKa is ≥ 9). The instability of CBN and CBC was accelerated after exposure to UVA radiation, with CBD (or CBG) being stable for up to 24 h. To support their topical applications, an in vitro dermatological comparative study of cytotoxic, phototoxic and UVA or UVB photoprotective effects using normal human dermal fibroblasts (NHDF) and keratinocytes (HaCaT) was done. NHDF are approx. twice as sensitive to the cannabinoids’ toxicity as HaCaT. Specifically, toxicity IC50 values for CBD after 24 h of incubation are 7.1 and 12.8 μM for NHDF and HaCaT, respectively. None of the studied cannabinoids were phototoxic. Extensive testing has shown that CBD is the most effective protectant against UVA radiation of the studied cannabinoids. For UVB radiation, CBN was the most effective. The results acquired could be used for further redox biology studies on phytocannabinoids and evaluations of their mechanism of action at the molecular level. Furthermore, the UVA and UVB photoprotectivity of phytocannabinoids could also be utilized in the development of new cannabinoid-based topical preparations.
Process for production of delta-9- tetrahydrocannabinol
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Page/Page column 11, (2010/11/26)
The present invention relates to a process for preparation of a delta-9-tetrahydrocannabinol compound or derivative thereof involving treating a first intermediate compound with an organoaluminum-based Lewis acid catalyst, under conditions effective to produce the delta-9-tetrahydrocannabinol compound or derivative thereof. Another aspect of the present invention relates to a process for preparation of a cannabidiol or cannabidiolate compound involving reacting a first starting compound with a second starting compound in the presence of a metal triflate catalyst, under conditions effective to form the cannabidiol or cannabidiolate compound. The present invention also relates to a compound of the formula: where R8, R9, and R10 are the same or different and independently selected from the group consisting of H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or halo, with R1, R2, and R3 defined herein.
