With the rapid development of lithium-ion batteries (LIB), selective recovery of lithium and other valuable metals from spent LIBs is in urgent need because of the shortage of Li and...
A new catalytic stereoselective tandem transformation via Nazarov cyclization/electrophilic fluorination has been accomplished. This sequence is efficiently catalyzed by a Cu(II) complex to afford fluorine-containing 1-indanone derivatives with two new stereocenters with high diastereoselectivity (trans/cis up to 49/1). Three examples of catalytic enantioselective tandem transformation are presented.
We disclose an organocatalyzed enantioselective decarboxylative ketone aldol reaction of β-ketoacids with trifluoromethyl ketones in the presence of biscinchona alkaloid (DHQD)(2)AQN, affording chiral tertiary alcohols in up to 98% yield and 90% ee.
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