1422430-76-9

Upstream product

• 518-55-8 conidendrin 
• 71772-18-4 α-conidendrin dimethyl ether 
• 347359-71-1 (7RS,8R,8'R)-4,4',7-trihydroxy-3,3'-dimethoxylignano-9,9'-lactone 
• 1403982-14-8 9',9'-diphenyldimethylcyclolariciresinol 
• 149-73-5 trimethyl orthoformate 

Relevant academic research and scientific papers

Synthesis and structural analysis of sterically hindered chiral 1,4-diol ligands derived from the lignan hydroxymatairesinol

The readily available natural lignan hydroxymatairesinol was transformed into sterically hindered and optically pure diphenyl, di-2-naphthyl, and tetramethyl 1,4-diol derivatives via arylation/alkylation of the aryltetralinbutyrolactone lignan (-)-conidendrin. In addition, the diastereoselective formation of stable hemiketals from the highly substituted butyrolactone was studied in detail. The conformations of the molecules prepared were studied computationally at molecular mechanics (MM), Hartree-Fock (HF)/6-31G*, and (DFT/B3LYP/TZVP) levels including entropy contributions and by NMR-spectroscopy. The conformations adopted showed that these novel chiral 1,4-diols may be suitable as chiral ligands for the development of new chiral transition metal and organo catalysts.