https://www.selleckchem.com/products/b-ap15.html
A catalyst-free tandem 1,5-hydride shift/cyclization process to form spiro [benzoquinolizidine-chromanones] is developed, which features high atom- and step-economy, high levels of stereocontrol, mild conditions, and a simple workup process. A series of new polycyclic spiro [benzoquinolizidine-chromanones] were obtained in high yields with excellent diastereoselectivities (up to 91% yield, 20 1 dr).Numerous studies have showed evidence that high-pressure annealing (HPA) can modify the crystal and electronic structure significantly,
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