Diastereoselective addition of anisoles to N-tert-butanesulfinyl imines via four-membered lithium cycles.
CHEMICAL COMMUNICATIONS(2018)
Abstract
A highly regio- and diastereo-selective ortho-lithiation/addition of anisoles to N-tert-butanesulfinyl imines resulting in the selective formation of chiral -branched amines is described. This method is also efficient for highly regioselective benzylic lithiation of o-methylanisoles, followed by diastereoselective addition to N-tert-butanesulfinyl imines.
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Key words
diastereoselective addition,anisoles,lithium,n-tert,four-membered
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