Stereoselective Synthesis of Nonpsychotic Natural Cannabidiol and Its Unnatural/Terpenyl/Tail-Modified Analogues
Here, we report a three-step concise and stereoselective synthesis route to one of the most important phytocannabinoids, namely, (−)-cannabidiol (-CBD), from inexpensive and readily available starting material R-(+)-limonene. The synthesis involved the diastereoselective bifunctionalization of limon...
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Veröffentlicht in: | Journal of organic chemistry 2022-04, Vol.87 (7), p.4489-4498 |
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container_title | Journal of organic chemistry |
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creator | Anand, Radhika Cham, Pankaj Singh Gannedi, Veeranjaneyulu Sharma, Sumit Kumar, Mukesh Singh, Rohit Vishwakarma, Ram A Singh, Parvinder Pal |
description | Here, we report a three-step concise and stereoselective synthesis route to one of the most important phytocannabinoids, namely, (−)-cannabidiol (-CBD), from inexpensive and readily available starting material R-(+)-limonene. The synthesis involved the diastereoselective bifunctionalization of limonene, followed by effective elimination leading to the generation of key chiral p-mentha-2,8-dien-1-ol. The chiral p-mentha-2,8-dien-1-ol on coupling with olivetol under silver catalysis provided regiospecific (−)-CBD, contrary to reported ones which gave a mixture. The newly developed approach was further extended to its structural analogues cannabidiorcin and other tail/terpenyl-modified analogues. Moreover, its opposite isomer (+)-cannabidiol was also successfully synthesized from S-(−)-limonene. |
doi_str_mv | 10.1021/acs.joc.1c02571 |
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subjects | Cannabidiol |
title | Stereoselective Synthesis of Nonpsychotic Natural Cannabidiol and Its Unnatural/Terpenyl/Tail-Modified Analogues |
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