Here are five organic functional groups similar to morphine and cannabinol:
1. Phenol group: This is a functional group consisting of a hydroxyl (-OH) group bonded directly to an aromatic ring. It is present in compounds like salicylic acid, which has analgesic properties similar to morphine.
2. Ether group: An ether functional group has an oxygen atom bonded to two organic groups. Compounds such as codeine, a derivative of morphine, contain this group and exhibit similar pain-relieving effects.
3. Amine group: This functional group consists of a nitrogen atom bonded to one or more organic groups. Compounds like tramadol, which is a synthetic opioid, contain amine groups and act as analgesics.
4. Ester group: An ester functional group is formed by the condensation of an alcohol and an acid, resulting in an oxygen atom bonded to a carbon atom and an additional organic group. Some opioids, like heroin, contain ester groups and produce similar effects to morphine.
5. Piperidine group: This is a cyclic amine group with a six-membered ring containing one nitrogen atom. Compounds like fentanyl, a potent synthetic opioid, possess this functional group and exhibit strong analgesic properties.
Please note that while these functional groups are found in compounds with similar effects to morphine and cannabinol, it is important to use such substances only under proper medical supervision and adhere to legal regulations.