Paymode, Dinesh J. published the artcileStudies toward the Total Synthesis of Parvifolals A/B: An Intramolecular o-Quinone Methide [4 + 2]-Cycloaddition To Construct the Central Tetracyclic Core, Category: benzofurans, the main research area is parvifolol tetracyclic core preparation cycloaddition.
Two different approaches comprising the intramol. [4+2]-cycloaddition of in situ generated o-quinone methides (o-QMs) have been explored to construct the central tetracyclic core of parvifolols A/B. At the outset, a cross-pinacol coupling of 2-formyl-tri-O-Methylresveratrol with 4-methoxysalicylaldehyde followed by acid treatment were found to provide the desired tetracyclic core (I) with an internal olefin. The requisite pendant aryl group has been introduced by a Pd-catalyzed direct coupling of corresponding diazonium salt.
ACS Omega published new progress about [4+2] Cycloaddition reaction. 50551-63-8 belongs to class benzofurans, name is 6-Methoxybenzofuran, and the molecular formula is C9H8O2, Category: benzofurans.
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem