3-(3,5-Dimethoxyphenyl)propanal 5 is an important intermediate for the synthesis of various isomeric tetrahydrocannabinols[1]1. Huffman , JW , Liddle , J. , Duncan , SG Jr. , Yu , S. , Martin , BR and Wiley , JL 1998. Bioorg. Med. Chem., 6: 2383 [CrossRef], [PubMed], [Web of Science ®] View all references and other related cannabinoids or cannabinoid-like compounds, for the stereoselective synthesis of 1-aryl-4a-methyloctahydrophenanthrenes[2]2. Angle , SR ...